Solid Silicone Rubber
Solid silicone rubber is the material of choice when temperature extremes, biocompatibility, or flame performance disqualify organic rubber compounds from a sealing or cushioning application. It maintains flexibility and compression set resistance from -100°F to 450°F, resists UV, ozone, and steam without surface degradation, and carries the qualification credentials — USP Class VI, ISO 10993, FDA 21 CFR — needed in medical device, pharmaceutical, and food contact assemblies. H-O Products carries the full range of solid silicone rubber families, from commercial durometer sheet through FDA and translucent grades to platinum-cured implantable-grade SSP-2390 and specialty Elastapro FR and low-outgassing variants, and converts them to customer specification.
30 Durometer Commercial Grade Solid Silicone
30 Durometer Commercial Grade Solid Silicone is a commercial grade solid silicone elastomer rated at 30 Shore A — the softest durometer in this series — designed for extreme temperature applications requiring a highly compliant, conformable seal or gasket. It is suited for applications where low closure force or intricate sealing geometry demands maximum flexibility. The material performs across a continuous service range of -80°F to 450°F, with intermittent capability to 500°F. It exhibits inherent UV and ozone resistance, making it appropriate for outdoor and weathering environments.
Key Properties
- Durometer / Hardness (Shore A): 30 ±5 — ASTM D2240
- Tensile Strength: 825 psi — ASTM D412
- Elongation: 800% — ASTM D412
- Tear Strength: 80 ppi — ASTM D624 (Die B)
- Specific Gravity: 1.12 g/cc — ASTM D297
- Service Temperature Range: -80°F to 450°F continuous; 500°F intermittent
40 Durometer Commercial Grade Solid Silicone
40 Durometer Commercial Grade Solid Silicone is a commercial grade solid silicone elastomer rated at 40 Shore A, designed for extreme temperature sealing and gasketing applications requiring a soft, highly flexible material with broad thermal capability. It maintains service performance from -80°F to 450°F continuously, with intermittent resistance to 500°F. The material resists UV and ozone degradation and functions as an effective electrical insulator.
Key Properties
- Durometer / Hardness (Shore A): 40 ±5 — ASTM D2240
- Tensile Strength: 800 psi — ASTM D412
- Elongation: 700% — ASTM D412
- Tear Strength: 100 ppi — ASTM D624 (Die B)
- Specific Gravity: 1.24 g/cc — ASTM D297
- Service Temperature Range: -80°F to 450°F continuous; 500°F intermittent
50 Durometer Commercial Grade Solid Silicone
50 Durometer Commercial Grade Solid Silicone is a medium-soft commercial grade solid silicone elastomer at 50 Shore A, occupying the mid-range of the series. It is intended for sealing, gasketing, and glazing applications that require a balance of compliance and physical strength. At 950 psi tensile strength — the highest in the series — this grade offers strong resistance to tearing and physical damage while remaining sufficiently flexible for die-cut gasket profiles.
The material provides inherent resistance to UV radiation and ozone and serves as an effective electrical insulator. Low compression set is cited as a key performance feature, supporting long-term sealing force retention. It is readily processed by die-cutting.
60 Durometer Commercial Grade Solid Silicone
60 Durometer Commercial Grade Solid Silicone is a commercial grade solid silicone elastomer rated at 60 Shore A, designed for extreme temperature applications in architectural, HVAC, and industrial sealing environments. It is rated for continuous service from -80°F to 450°F with intermittent capability to 500°F. The material provides UV and ozone resistance and serves as an effective electrical insulator.
Key Properties
- Durometer / Hardness (Shore A): 60 ±5 — ASTM D2240
- Tensile Strength: 850 psi — ASTM D412
- Elongation: 500% — ASTM D412
- Tear Strength: 105 ppi — ASTM D624 (Die B)
- Specific Gravity: 1.42 g/cc — ASTM D297
- Service Temperature Range: -80°F to 450°F continuous; 500°F intermittent
70 Durometer Commercial Grade Solid Silicone
70 Durometer Commercial Grade Solid Silicone is a commercial grade solid silicone elastomer rated at 70 Shore A, designed for extreme temperature sealing, gasketing, and structural load-bearing applications. It is rated for continuous service from -80°F to 450°F, with intermittent capability to 500°F. The material provides UV and ozone resistance and functions as an effective electrical insulator.
Key Properties
- Durometer / Hardness (Shore A): 70 ±5 — ASTM D2240
- Tensile Strength: 900 psi — ASTM D412
- Elongation: 400% — ASTM D412
- Tear Strength: 110 ppi — ASTM D624 (Die B)
- Specific Gravity: 1.43 g/cc — ASTM D297
- Service Temperature Range: -80°F to 450°F continuous; 500°F intermittent
80 Durometer Commercial Grade Solid Silicone
80 Durometer Commercial Grade Solid Silicone is a commercial grade solid silicone elastomer rated at 80 Shore A, designed for extreme temperature applications where a firm, high-durometer silicone is required. It is rated for continuous service from -80°F to 450°F, with intermittent capability to 500°F. The material exhibits UV and ozone resistance and functions as an effective electrical insulator.
Key Properties
- Durometer / Hardness (Shore A): 80 ±5 — ASTM D2240
- Tensile Strength: 950 psi — ASTM D412
- Elongation: 300% — ASTM D412
- Tear Strength: 100 ppi — ASTM D624 (Die B)
- Specific Gravity: 1.48 g/cc — ASTM D297
- Service Temperature Range: -80°F to 450°F continuous; 500°F intermittent
90 Durometer Commercial Grade Solid Silicone
90 Durometer Commercial Grade Solid Silicone is a commercial grade solid silicone elastomer rated at 90 Shore A — the firmest grade in this series — designed for extreme temperature applications requiring maximum hardness and dimensional stability. It is rated for continuous service from -80°F to 450°F, with intermittent capability to 500°F. The material provides UV and ozone resistance and functions as an effective electrical insulator.
Key Properties
- Durometer / Hardness (Shore A): 90 ±5 — ASTM D2240
- Tensile Strength: 800 psi — ASTM D412
- Elongation: 200% — ASTM D412
- Tear Strength: 120 ppi — ASTM D624 (Die B)
- Specific Gravity: 1.38 g/cc — ASTM D297
30 Durometer FDA Grade Solid Silicone
30 Durometer FDA Grade Solid Silicone is an FDA grade solid silicone sheeting rated at 30 Shore A, designed specifically for food contact applications. It is the softest grade in the FDA silicone series and provides a highly compliant, easily die-cut gasket and sealing solution. The material maintains continuous service from -80°F to 450°F, with intermittent capability to 500°F, and passes FDA 21 CFR 177.2600.
Key Properties
- Durometer / Hardness (Shore A): 30 ±5 — ASTM D2240
- Tensile Strength: 825 psi — ASTM D412
- Elongation: 800% — ASTM D412
- Tear Strength: 80 ppi — ASTM D624, Die B
- Specific Gravity: 1.11 g/cc — ASTM D297
- Service Temperature Range: -80°F to 450°F continuous; 500°F intermittent
40 Durometer FDA Grade Solid Silicone
40 Durometer FDA Grade Solid Silicone is an FDA grade solid silicone sheeting rated at 40 Shore A, designed for food contact sealing and gasketing applications. It provides a soft, highly flexible profile suitable for die-cut gaskets and seals in food processing and food service environments. The material maintains continuous service from -80°F to 450°F, with intermittent capability to 500°F, and passes FDA 21 CFR 177.2600.
Key Properties
- Durometer / Hardness (Shore A): 40 ±5 — ASTM D2240
- Tensile Strength: 800 psi — ASTM D412
- Elongation: 700% — ASTM D412
- Tear Strength: 100 ppi — ASTM D624, Die B
- Specific Gravity: 1.26 g/cc — ASTM D297
- Service Temperature Range: -80°F to 450°F continuous; 500°F intermittent
50 Durometer FDA Grade Solid Silicone
50 Durometer FDA Grade Solid Silicone is an FDA grade solid silicone sheeting rated at 50 Shore A, designed for food contact sealing and gasketing applications. It provides a medium-soft profile with high tensile strength, suitable for die-cut gaskets and seals in food processing and food service environments. The material maintains continuous service from -80°F to 450°F, with intermittent capability to 500°F, and passes FDA 21 CFR 177.2600.
Key Properties
- Durometer / Hardness (Shore A): 50 ±5 — ASTM D2240
- Tensile Strength: 950 psi — ASTM D412
- Elongation: 600% — ASTM D412
- Tear Strength: 105 ppi — ASTM D624, Die B
- Specific Gravity: 1.33 g/cc — ASTM D297
- Service Temperature Range: -80°F to 450°F continuous; 500°F intermittent
55 Durometer FDA Grade Industrial Polychloroprene
55 Durometer FDA Grade Industrial Polychloroprene is a Neoprene (CR) blend rubber sheet formulated as an odorless, tasteless, and non-toxic material with a natural resistance to bacterial growth. Developed as a synthetic alternative to natural rubber, it provides moderate oil resistance, good abrasion resistance, and compliance with FDA 21 CFR 177.2600 for use in food processing and related regulated environments.
Key Properties
- Durometer, Shore "A": 55 ±5 — ASTM D2240
- Tensile Strength, psi: 1200 min. — ASTM D412
- Elongation, %: 300 min. — ASTM D412
- Compression Set, 22 hrs @ 212°F: 80% max. — ASTM D395B
- Specific Gravity, g/cc: 1.55 — —
60 Durometer FDA Grade Solid Silicone
60 Durometer FDA Grade Solid Silicone is an FDA grade solid silicone sheeting rated at 60 Shore A, designed for food contact sealing and gasketing applications requiring a medium-firm, dimensionally stable material. It maintains continuous service from -80°F to 450°F, with intermittent capability to 500°F, and passes FDA 21 CFR 177.2600.
Key Properties
- Durometer / Hardness (Shore A): 60 ±5 — ASTM D2240
- Tensile Strength: 850 psi — ASTM D412
- Elongation: 500% — ASTM D412
- Tear Strength: 105 ppi — ASTM D624, Die B
- Specific Gravity: 1.42 g/cc — ASTM D297
- Service Temperature Range: -80°F to 450°F continuous; 500°F intermittent
70 Durometer FDA Grade Solid Silicone
70 Durometer FDA Grade Solid Silicone is an FDA grade solid silicone sheeting rated at 70 Shore A, designed for food contact applications requiring a firm, load-resistant sealing material with broad thermal capability. It maintains continuous service from -80°F to 450°F, with intermittent capability to 500°F, and passes FDA 21 CFR 177.2600.
Key Properties
- Durometer / Hardness (Shore A): 70 ±5 — ASTM D2240
- Tensile Strength: 900 psi — ASTM D412
- Elongation: 400% — ASTM D412
- Tear Strength: 110 ppi — ASTM D624, Die B
- Specific Gravity: 1.42 g/cc — ASTM D297
- Service Temperature Range: -80°F to 450°F continuous; 500°F intermittent
80 Durometer FDA Grade Solid Silicone
80 Durometer FDA Grade Solid Silicone is an FDA grade solid silicone sheeting rated at 80 Shore A, designed for food contact applications requiring a high-durometer, firm sealing material with broad thermal performance. It maintains continuous service from -80°F to 450°F, with intermittent capability to 500°F, and passes FDA 21 CFR 177.2600.
Key Properties
- Durometer / Hardness (Shore A): 80 ±5 — ASTM D2240
- Tensile Strength: 950 psi — ASTM D412
- Elongation: 300% — ASTM D412
- Tear Strength: 100 ppi — ASTM D624, Die B
- Specific Gravity: 1.49 g/cc — ASTM D297
- Service Temperature Range: -80°F to 450°F continuous; 500°F intermittent
20 Durometer Translucent FDA Grade Solid Silicone
20 Durometer Translucent FDA Grade Solid Silicone is a translucent FDA grade solid silicone sheeting rated at 20 Shore A — the softest and most compliant grade in the translucent FDA silicone series — designed for high food contact and dairy applications. It is easily die-cut and provides a highly flexible gasket and sealing solution across a continuous service range of -80°F to 450°F, with intermittent capability to 500°F. The material passes FDA 21 CFR 177.2600 and is odorless, tasteless, and non-yellowing.
Key Properties
- Durometer / Hardness (Shore A): 20 ±5 — ASTM D2240
- Tensile Strength: 700 psi — ASTM D412
- Elongation: 1200% — ASTM D412
- Tear Strength: 60 psi — ASTM D624
- Specific Gravity: 1.05 g/cc — ASTM D297
- Service Temperature Range: -80°F to 450°F continuous; 500°F intermittent
30 Durometer Translucent FDA Grade Solid Silicone
30 Durometer Translucent FDA Grade Solid Silicone is a translucent FDA grade solid silicone sheeting rated at 30 Shore A, designed for high food contact and dairy applications requiring a soft, easily die-cut gasket and sealing material. It maintains continuous service from -80°F to 450°F, with intermittent capability to 500°F. The material passes FDA 21 CFR 177.2600 and is odorless, tasteless, and non-yellowing.
Key Properties
- Durometer / Hardness (Shore A): 30 ±5 — ASTM D2240
- Tensile Strength: 700 psi — ASTM D412
- Elongation: 800% — ASTM D412
- Tear Strength: 90 psi — ASTM D624
- Specific Gravity: 1.06 g/cc — ASTM D297
- Service Temperature Range: -80°F to 450°F continuous; 500°F intermittent
40 Durometer Translucent FDA Grade Solid Silicone
40 Durometer Translucent FDA Grade Solid Silicone is a translucent FDA grade solid silicone sheeting rated at 40 Shore A, designed for high food contact and dairy applications requiring an exceptionally strong, highly extensible, and easily die-cut sealing material. It maintains continuous service from -80°F to 450°F, with intermittent capability to 500°F. The material passes FDA 21 CFR 177.2600 and is odorless, tasteless, and non-yellowing.
Key Properties
- Durometer / Hardness (Shore A): 40 ±5 — ASTM D2240
- Tensile Strength: 1100 psi — ASTM D412
- Elongation: 900% — ASTM D412
- Tear Strength: 200 psi — ASTM D624
- Specific Gravity: 1.10 g/cc — ASTM D297
- Service Temperature Range: -80°F to 450°F continuous; 500°F intermittent
50 Durometer Translucent FDA Grade Solid Silicone
Product Overview
50 Durometer Translucent FDA Grade Solid Silicone is a translucent FDA grade solid silicone sheeting rated at 50 Shore A, designed for high food contact and dairy applications requiring a medium-soft, high-strength sealing material. It maintains continuous service from -80°F to 450°F, with intermittent capability to 500°F. The material passes FDA 21 CFR 177.2600 and is odorless, tasteless, and non-yellowing.Key Properties
- Durometer / Hardness (Shore A): 50 ±5 — ASTM D2240
- Tensile Strength: 1200 psi — ASTM D412
- Elongation: 900% — ASTM D412
- Tear Strength: 175 psi — ASTM D624
- Specific Gravity: 1.13 g/cc — ASTM D297
- Service Temperature Range: -80°F to 450°F continuous; 500°F intermittent
60 Durometer Translucent FDA Grade Solid Silicone
60 Durometer Translucent FDA Grade Solid Silicone is a translucent FDA grade solid silicone sheeting rated at 60 Shore A, designed for high food contact and dairy applications requiring a medium-firm, high-strength sealing material. It maintains continuous service from -80°F to 450°F, with intermittent capability to 500°F. The material passes FDA 21 CFR 177.2600 and is odorless, tasteless, and non-yellowing.
Key Properties
- Durometer / Hardness (Shore A): 60 ±5 — ASTM D2240
- Tensile Strength: 1250 psi — ASTM D412
- Elongation: 750% — ASTM D412
- Tear Strength: 180 psi — ASTM D624
- Specific Gravity: 1.15 g/cc — ASTM D297
- Service Temperature Range: -80°F to 450°F continuous; 500°F intermittent
70 Durometer Translucent FDA Grade Solid Silicone
70 Durometer Translucent FDA Grade Solid Silicone is a translucent FDA grade solid silicone sheeting rated at 70 Shore A, designed for high food contact and dairy applications requiring a firm, high-strength sealing material with excellent physical robustness. It maintains continuous service from -80°F to 450°F, with intermittent capability to 500°F. The material passes FDA 21 CFR 177.2600 and is odorless, tasteless, and non-yellowing.
Key Properties
- Durometer / Hardness (Shore A): 70 ±5 — ASTM D2240
- Tensile Strength: 1250 psi — ASTM D412
- Elongation: 650% — ASTM D412
- Tear Strength: 200 psi — ASTM D624
- Specific Gravity: 1.19 g/cc — ASTM D297
- Service Temperature Range: -80°F to 450°F continuous; 500°F intermittent
BISCO® MS-1630
BISCO® MS-1630 is a premium translucent solid silicone sheeting rated at 30 Shore A, produced from a low volatile, peroxide-free, platinum-cured raw material for use in life science and medical device applications. It delivers a non-toxic, chemically inert cured product with a glossy smooth surface finish and is rated for service from -80°F to 450°F. The material meets USP Class 6 requirements and is compliant with 21 CFR 177.2600.
Key Properties
- Durometer, Shore A: 30 ±5 — ASTM D2240
- Tensile Strength: 800 psi — ASTM D412
- Elongation: 725% — ASTM D412
- Compression Set, 70 Hours @ 212°F @ 25%: 6% — ASTM D395
- Specific Gravity: 1.12 g/cc — ASTM D297
- Temperature Range: -80°F to 450°F
BISCO® MS-1640
BISCO® MS-1640 is a premium translucent solid silicone sheeting rated at 40 Shore A, produced from a low volatile, peroxide-free, platinum-cured raw material for use in life science and medical device applications. It delivers a non-toxic, chemically inert cured product with a glossy smooth surface finish and is rated for service from -80°F to 450°F. The material meets USP Class 6 requirements and is compliant with 21 CFR 177.2600.
Key Properties
- Durometer, Shore A: 40 ±5 — ASTM D2240
- Tensile Strength: 1000 psi — ASTM D412
- Elongation: 700% — ASTM D412
- Compression Set, 70 Hours @ 212°F @ 25%: 6% — ASTM D395
- Specific Gravity: 1.14 g/cc — ASTM D297
- Temperature Range: -80°F to 450°F
BISCO® MS-1650
BISCO® MS-1650 is a premium translucent solid silicone sheeting rated at 50 Shore A, produced from a low volatile, peroxide-free, platinum-cured raw material for use in life science and medical device applications. It delivers a non-toxic, chemically inert cured product with a glossy smooth surface finish and is rated for service from -80°F to 450°F. The material meets USP Class 6 requirements and is compliant with 21 CFR 177.2600.
Key Properties
- Durometer, Shore A: 50 ±5 — ASTM D2240
- Tensile Strength: 1200 psi — ASTM D412
- Elongation: 600% — ASTM D412
- Compression Set, 70 Hours @ 212°F @ 25%: 9.5% — ASTM D395
- Specific Gravity: 1.15 g/cc — ASTM D297
- Temperature Range: -80°F to 450°F
BISCO® MS-1660
BISCO® MS-1660 is a premium translucent solid silicone sheeting rated at 60 Shore A, produced from a low volatile, peroxide-free, platinum-cured raw material for use in life science and medical device applications. It delivers a non-toxic, chemically inert cured product with a glossy smooth surface finish and is rated for service from -80°F to 450°F. The material meets USP Class 6 requirements and is compliant with 21 CFR 177.2600.
Key Properties
- Durometer, Shore A: 60 ±5 — ASTM D2240
- Tensile Strength: 1200 psi — ASTM D412
- Elongation: 600% — ASTM D412
- Compression Set, 70 Hours @ 212°F @ 25%: 12.2% — ASTM D395
- Specific Gravity: 1.17 g/cc — ASTM D297
- Temperature Range: -80°F to 450°F
BISCO® MS-1670
BISCO® MS-1670 is a premium translucent solid silicone sheeting rated at 70 Shore A, produced from a low volatile, peroxide-free, platinum-cured raw material for use in life science and medical device applications. It delivers a non-toxic, chemically inert cured product with a glossy smooth surface finish and is rated for service from -80°F to 450°F. The material meets USP Class 6 requirements and is compliant with 21 CFR 177.2600.
Key Properties
- Durometer, Shore A: 70 ±5 — ASTM D2240
- Tensile Strength: 1200 psi — ASTM D412
- Elongation: 600% — ASTM D412
- Compression Set, 70 Hours @ 212°F @ 25%: 12.3% — ASTM D395
- Specific Gravity: 1.21 g/cc — ASTM D297
- Temperature Range: -80°F to 450°F
SSP2390-10D
SSP2390-10D is the softest grade in the SSP2390 Series of platinum-cured silicone elastomers, with a Shore A durometer of 11 (very soft and conformable). Tensile strength is 370 psi, elongation 990% (the highest in the series), tear strength (Die B) 90 ppi, and specific gravity 1.08. Translucent base color with red, black, gray, and white available. The base material meets USP Class VI biocompatibility requirements and FDA 21 CFR § 177.2600 food-contact requirements (dry and fatty foods), and is RoHS compliant. Cure profile is 10 minutes at 177°C (350°F).
Key Properties
- Durometer (Shore A): 11
- Tensile Strength: 370 psi
- Elongation: 990% (highest in series)
- Tear Strength (Die B): 90 ppi
- Specific Gravity: 1.08
- Compliance: FDA 21 CFR § 177.2600, USP Class VI, RoHS
SSP2390-20D
SSP2390-20D is a soft grade in the SSP2390 Series of platinum-cured silicone elastomers, with a Shore A durometer of 21. Tensile strength is 640 psi, elongation 910%, tear strength (Die B) 135 ppi, and specific gravity 1.09. Translucent base color with red, black, gray, and white available. The base material meets USP Class VI biocompatibility requirements and FDA 21 CFR § 177.2600 food-contact requirements (dry and fatty foods), and is RoHS compliant. Cure profile is 10 minutes at 177°C (350°F).
Key Properties
- Durometer (Shore A): 21
- Tensile Strength: 640 psi
- Elongation: 910%
- Tear Strength (Die B): 135 ppi
- Specific Gravity: 1.09
- Compliance: FDA 21 CFR § 177.2600, USP Class VI, RoHS
SSP2390-30D
SSP2390-30D is a soft-mid grade in the SSP2390 Series of platinum-cured silicone elastomers, with a Shore A durometer of 30. Tensile strength is 950 psi, elongation 890%, tear strength (Die B) 150 ppi, and specific gravity 1.1. Translucent base color with red, black, gray, and white available. The base material meets USP Class VI biocompatibility requirements and FDA 21 CFR § 177.2600 food-contact requirements (dry and fatty foods), and is RoHS compliant. Cure profile is 10 minutes at 177°C (350°F).
Key Properties
- Durometer (Shore A): 30
- Tensile Strength: 950 psi
- Elongation: 890%
- Tear Strength (Die B): 150 ppi
- Specific Gravity: 1.1
- Compliance: FDA 21 CFR § 177.2600, USP Class VI, RoHS
SSP2390-40D
SSP2390-40D is a mid-range grade in the SSP2390 Series of platinum-cured silicone elastomers, with a Shore A durometer of 39. Tensile strength is 1,310 psi, elongation 840%, tear strength (Die B) 165 ppi, and specific gravity 1.12. Translucent base color with red, black, gray, and white available. The base material meets USP Class VI biocompatibility requirements and FDA 21 CFR § 177.2600 food-contact requirements (dry and fatty foods), and is RoHS compliant. Cure profile is 10 minutes at 177°C (350°F).
Key Properties
- Durometer (Shore A): 39
- Tensile Strength: 1,310 psi
- Elongation: 840%
- Tear Strength (Die B): 165 ppi
- Specific Gravity: 1.12
- Compliance: FDA 21 CFR § 177.2600, USP Class VI, RoHS
SSP2390-50D
SSP2390-50D is a peak-tensile grade in the SSP2390 Series of platinum-cured silicone elastomers, with a Shore A durometer of 48. Tensile strength is 1,510 psi, elongation 770%, tear strength (Die B) 165 ppi, and specific gravity 1.14. Translucent base color with red, black, gray, and white available. The base material meets USP Class VI biocompatibility requirements and FDA 21 CFR § 177.2600 food-contact requirements (dry and fatty foods), and is RoHS compliant. Cure profile is 10 minutes at 177°C (350°F). Outgassing: the manufacturer's third-party ASTM E595-15 test on the 60D grade of this series reported TML 0.05%, CVCM 0.004%, and WVR 0.04%, well inside the 1.00% / 0.10% limits used for spacecraft material screening. The 50D shares the same platinum-cure chemistry but was not the tested sample; request the report for your program's review.
Key Properties
- Durometer (Shore A): 48
- Tensile Strength: 1,510 psi
- Elongation: 770%
- Tear Strength (Die B): 165 ppi
- Outgassing (ASTM E595-15): TML 0.05%, CVCM 0.004%, WVR 0.04% (third-party report on the 60D grade of this series)
- Specific Gravity: 1.14
Compliance: FDA 21 CFR § 177.2600, USP Class VI, RoHS
SSP2390-60D
SSP2390-60D is a firm-mid grade in the SSP2390 Series of platinum-cured silicone elastomers, with a Shore A durometer of 59. Tensile strength is 1,500 psi, elongation 770%, tear strength (Die B) 215 ppi, and specific gravity 1.17. Translucent base color with red, black, gray, and white available. The base material meets USP Class VI biocompatibility requirements and FDA 21 CFR § 177.2600 food-contact requirements (dry and fatty foods), and is RoHS compliant. Cure profile is 10 minutes at 177°C (350°F). Outgassing: the manufacturer's third-party ASTM E595-15 test on SSP2390-60D reported TML 0.05%, CVCM 0.004%, and WVR 0.04%, well inside the 1.00% / 0.10% limits used for spacecraft material screening, which is the expected result for a platinum-cured silicone with no peroxide cure by-products.
Key Properties
- Durometer (Shore A): 59
- Tensile Strength: 1,500 psi
- Elongation: 770%
- Tear Strength (Die B): 215 ppi
- Outgassing (ASTM E595-15): TML 0.05%, CVCM 0.004%, WVR 0.04% (third-party report on this grade)
- Specific Gravity: 1.17
- Compliance: FDA 21 CFR § 177.2600, USP Class VI, RoHS
SSP2390-70D
SSP2390-70D is a firm grade in the SSP2390 Series of platinum-cured silicone elastomers, with a Shore A durometer of 72. Tensile strength is 1,390 psi, elongation 720%, tear strength (Die B) 220 ppi, and specific gravity 1.19. Translucent base color with red, black, gray, and white available. The base material meets USP Class VI biocompatibility requirements and FDA 21 CFR § 177.2600 food-contact requirements (dry and fatty foods), and is RoHS compliant. Cure profile is 10 minutes at 177°C (350°F).
Key Properties
- Durometer (Shore A): 72
- Tensile Strength: 1,390 psi
- Elongation: 720%
- Tear Strength (Die B): 220 ppi
- Specific Gravity: 1.19
- Compliance: FDA 21 CFR § 177.2600, USP Class VI, RoHS
SSP2390-80D
SSP2390-80D is a firmest grade in the SSP2390 Series of platinum-cured silicone elastomers, with a Shore A durometer of 79. Tensile strength is 1,310 psi, elongation 670%, tear strength (Die B) 160 ppi, and specific gravity 1.21. Translucent base color with red, black, gray, and white available. The base material meets USP Class VI biocompatibility requirements and FDA 21 CFR § 177.2600 food-contact requirements (dry and fatty foods), and is RoHS compliant. Cure profile is 10 minutes at 177°C (350°F).
Key Properties
- Durometer (Shore A): 79
- Tensile Strength: 1,310 psi
- Elongation: 670%
- Tear Strength (Die B): 160 ppi
- Specific Gravity: 1.21
- Compliance: FDA 21 CFR § 177.2600, USP Class VI, RoHS
BISCO® HT-1240
40 Shore A General Purpose Solid Silicone
BISCO® HT-1240 is a 40 ±5 Shore A solid silicone elastomer designed for applications requiring enhanced conformability and stable sealing performance under elevated temperature and compression conditions. Rated from −80°F to 425°F, HT-1240 provides flexible surface adaptation while maintaining ≤25% compression set after 70 hours at 302°F.Key Properties
- Hardness: 40 ±5 Shore A
- Tensile Strength: 1110 psi
- Elongation: ≥240%
- Compression Set: ≤25% (70 hrs @ 302°F, 25%)
- Specific Gravity: 1.1 g/cc
- Recommended Service Temperature: −80°F to 425°F
BISCO® HT-1240
BISCO® HT-1240 is a 40 Shore A general purpose solid silicone offering resistance to high temperatures, tear, and most fluids for a variety of industrial applications. It is rated for use from -80°F to 425°F and delivers 1110 psi tensile strength with ≥240% elongation. The material carries a broad compliance portfolio including A-A-59588, AMS 3301-3305, FDA 21 CFR 177.2600, and NSF 51 (File MH62230).
Key Properties
- Durometer, Shore A: 40 ±5 — ASTM D2240
- Tensile Strength: 1110 psi — ASTM D412
- Tensile Elongation: ≥240% — ASTM D412
- Compression Set, 70 Hours @ 302°F @ 25%: ≤25% — ASTM D395
- Specific Gravity: 1.1 g/cc — —
- Recommended Use Temperature: -80°F to 425°F
BISCO® HT-1250
BISCO® HT-1250 is a 50 Shore A general purpose solid silicone offering resistance to high temperatures, tear, and most fluids for a variety of industrial applications. It is rated for use from -80°F to 425°F and delivers 1030 psi tensile strength with ≥200% elongation. The material carries a broad compliance portfolio including A-A-59588, AMS 3301-3305, FDA 21 CFR 177.2600, and NSF 51 (File MH62230).
Key Properties
- Durometer, Shore A: 50 ±5 — ASTM D2240
- Tensile Strength: 1030 psi — ASTM D412
- Tensile Elongation: ≥200% — ASTM D412
- Compression Set, 70 Hours @ 302°F @ 25%: ≤25% — ASTM D395
- Specific Gravity: 1.16 g/cc — —
- Recommended Use Temperature: -80°F to 425°F
BISCO® HT-1250
50 Shore A General Purpose Solid Silicone
BISCO® HT-1250 is a 50 ±5 Shore A solid silicone elastomer engineered for applications requiring balanced flexibility and structural support under sustained compression and elevated temperature exposure. Rated from −80°F to 425°F, HT-1250 maintains ≤25% compression set after 70 hours at 302°F, supporting reliable long-term sealing performance.Key Properties
- Hardness: 50 ±5 Shore A
- Tensile Strength: 1030 psi
- Elongation: ≥200%
- Compression Set: ≤25% (70 hrs @ 302°F, 25%)
- Specific Gravity: 1.16 g/cc
- Recommended Service Temperature: −80°F to 425°F
BISCO® HT-1260
BISCO® HT-1260 is a 60 Shore A general purpose solid silicone offering resistance to high temperatures, tear, and most fluids for a variety of industrial applications. It is rated for use from -80°F to 425°F and delivers 1010 psi tensile strength with ≥150% elongation. The material carries a broad compliance portfolio including A-A-59588, AMS 3301-3305, FDA 21 CFR 177.2600, and NSF 51 (File MH62230).
Key Properties
- Durometer, Shore A: 60 ±5 — ASTM D2240
- Tensile Strength: 1010 psi — ASTM D412
- Tensile Elongation: ≥150% — ASTM D412
- Compression Set, 70 Hours @ 302°F @ 25%: ≤25% — ASTM D395
- Specific Gravity: 1.23 g/cc — —
- Recommended Use Temperature: -80°F to 425°F
BISCO® HT-1260
60 Shore A General Purpose Solid Silicone
BISCO® HT-1260 is a 60 ±5 Shore A solid silicone elastomer engineered for applications requiring increased firmness and dimensional stability under sustained compression and elevated temperature exposure. Rated from −80°F to 425°F, HT-1260 maintains ≤25% compression set after 70 hours at 302°F, supporting reliable sealing performance in higher-load applications.Key Properties
- Hardness: 60 ±5 Shore A
- Tensile Strength: 1010 psi
- Elongation: ≥150%
- Compression Set: ≤25% (70 hrs @ 302°F, 25%)
- Specific Gravity: 1.23 g/cc
- Recommended Service Temperature: −80°F to 425°F
BISCO® HT-1270
70 Shore A General Purpose Solid Silicone
BISCO® HT-1270 is a 70 ±5 Shore A solid silicone elastomer engineered for applications requiring maximum firmness and reduced material deflection under sustained compression and elevated temperature exposure. Rated from −80°F to 425°F, HT-1270 maintains ≤25% compression set after 70 hours at 302°F, supporting reliable sealing performance in high-load environments.Key Properties
- Hardness: 70 ±5 Shore A
- Tensile Strength: 1050 psi
- Elongation: ≥125%
- Compression Set: ≤25% (70 hrs @ 302°F, 25%)
- Specific Gravity: 1.29 g/cc
- Recommended Service Temperature: −80°F to 425°F
BISCO® HT-1270
BISCO® HT-1270 is a 70 Shore A general purpose solid silicone offering resistance to high temperatures, tear, and most fluids for a variety of industrial applications. It is rated for use from -80°F to 425°F and delivers 1050 psi tensile strength with ≥125% elongation. The material carries a broad compliance portfolio including A-A-59588, AMS 3301-3305, FDA 21 CFR 177.2600, and NSF 51 (File MH62230).
Key Properties
- Durometer, Shore A: 70 ±5 — ASTM D2240
- Tensile Strength: 1050 psi — ASTM D412
- Tensile Elongation: ≥125% — ASTM D412
- Compression Set, 70 Hours @ 302°F @ 25%: ≤25% — ASTM D395
- Specific Gravity: 1.29 g/cc — —
- Recommended Use Temperature: -80°F to 425°F
BISCO® HT-6135 Tight Tolerance
BISCO® HT-6135 is a tight tolerance solid silicone rated at 33 Shore A, engineered to achieve superior sealing through high tear strength and the tightest thickness tolerances of all solid silicones in the BISCO® HT series. It delivers >800 psi tensile strength, 116 ppi tear resistance, and a compression set of <25% (70 hours @ 302°F @ 25% deflection). The material is rated for service from -67°F to 392°F and provides resistance to UV, ozone, extreme temperatures, and most fluids.
Key Properties
- Durometer, Shore A: 33 — ASTM D2240
- Tensile Strength: >800 psi — ASTM D412
- Elongation: 580 — ASTM D412
- Compression Set, 70 Hours @ 302°F @ 25%: <25% — ASTM D395
- Specific Gravity: 1.22 g/cc — —
- Temperature Range: -67°F to 392°F
BISCO® HT-6210 Extra Soft
BISCO® HT-6210 is an extra soft solid silicone rated at 61 Shore OO, designed for the most demanding gasketing applications where extremely low closure force and maximum conformability are required. It delivers 480 psi tensile strength, >20 ppi tear resistance, and a compression set of <25% (22 hours @ 302°F @ 50% deflection). The material is rated for service from -67°F to 392°F and exhibits resistance to UV, ozone, extreme temperatures, and most fluids.
Key Properties
- Durometer, Shore OO: 61 — ASTM D2240
- Tensile Strength: 480 psi — ASTM D412
- Elongation: 565% — ASTM D412
- Compression Set, 22 Hours @ 302°F @ 50%: <25% — ASTM D395
- Specific Gravity: 1.07 g/cc — —
BISCO® HT-6220 Soft
BISCO® HT-6220 is a soft solid silicone rated at 20 Shore A, designed for demanding gasketing applications requiring a highly protective seal with low closure force. It delivers 640 psi tensile strength, 116 ppi tear resistance, and a compression set of <25% (70 hours @ 302°F @ 25% deflection). The material is rated for service from -67°F to 392°F and provides resistance to UV, ozone, extreme temperatures, and most fluids.
Key Properties
- Durometer, Shore A: 20 — ASTM D2240
- Tensile Strength: 640 psi — ASTM D412
- Elongation: 580% — ASTM D412
- Compression Set, 70 Hours @ 302°F @ 25%: <25% — ASTM D395
- Specific Gravity: 1.08 g/cc — —
BISCO® HT-6240 Transparent
BISCO® HT-6240 is a transparent solid silicone rated at 41 Shore A, designed for demanding gasketing applications where material transparency improves application aesthetics or enables visual inspection. It delivers 1040 psi tensile strength, 112 ppi tear resistance, and a compression set of <35% (70 hours @ 302°F @ 25% deflection). The material is rated for service from -67°F to 392°F and provides resistance to UV, ozone, extreme temperatures, and most fluids.
Key Properties
- Durometer, Shore A: 41 — ASTM D2240
- Tensile Strength: 1040 psi — ASTM D412
- Elongation: 325% — ASTM D412
- Compression Set, 70 Hours @ 302°F @ 25%: <35% — ASTM D395
- Specific Gravity: 1.07 g/cc — —
BISCO® HT-6360 Fire-Safe
BISCO® HT-6360 is a fire-safe solid silicone rated at 60 Shore A, designed to protect sensitive applications from flame damage through superior flame, smoke, and toxicity (FST) resistance. It achieves UL 94 V-0 (File E83967), meets ASTM E162 flame spread index requirements, and meets ASTM E662 smoke density requirements. The material is rated for service from -67°F to 392°F and provides resistance to UV, ozone, extreme temperatures, and most fluids.
Key Properties
- Durometer, Shore A: 60 — ASTM D2240
- Tensile Strength: >200 psi — ASTM D412
- Elongation: >125% — ASTM D412
- Compression Set, 70 Hours @ 302°F @ 25%: <35% — ASTM D395
- Specific Gravity: 1.71 g/cc — —
- Temperature Range: -67°F to 392°F
kSil® GP200
kSil® GP200 is a closed cell, lightweight silicone sponge with a density of 180 kg/m³ and a compression force deflection of 21 kPa, the lowest in the kSil® GP cellular sponge range. It is rated for service from -60°C to +230°C and exhibits water absorption of less than 5%. The material is available in thicknesses from 1.5 mm to 30 mm and is approved for aerospace, automotive, and water contact applications.
Key Properties
- Compression Force Deflection: 21 kPa (ASTM D1056)
- Tensile Strength: 600 kPa (ASTM D412)
- Elongation: 140% (ASTM D412)
- Compression Set: 20% (ASTM D1056)
- Density: 180 kg/m³ (ASTM D1056)
kSil® GP250
kSil® GP250 is a closed cell, lightweight silicone sponge with a density of 235 kg/m³ and a compression force deflection of 34 kPa. It is rated for service from -60°C to +230°C and exhibits a compression set of 12% and water absorption of less than 5%. The material is available in thicknesses from 1.5 mm to 45 mm, the widest thickness range in the kSil® GP cellular sponge range.
Key Properties
- Compression Force Deflection: 34 kPa (ASTM D1056)
- Tensile Strength: 600 kPa (ASTM D412)
- Elongation: 145% (ASTM D412)
- Compression Set: 12% (ASTM D1056)
- Density: 235 kg/m³ (ASTM D1056)
- Operating Temperature Range: -60°C to +230°C
kSil® GP30
Product Overview
kSil® GP30 is a general purpose solid silicone elastomer rated at 30 Shore A, offering excellent elongation (550%) and flexibility for soft sealing and gasketing applications. It delivers 8 MPa (~1160 psi) tensile strength and 16 N/mm (~91 ppi) tear strength, with compression set of 20% (22 hours @ 300°F) and 23% (24 hours @ 150°C). The material meets multiple international compliance standards including FDA 21 CFR 177.2600, FAR 25.853, FMVSS 302, WRAS, and UL 94.Key Properties
- Durometer: 30 Shore A — ISO 48-4
- Tensile Strength: 8 MPa (~1160 psi) — ISO 37 Type 2
- Elongation: 550 % — ISO 37 Type 2
- Compression Set, 22 Hours @ 300°F: 20 % — ISO 815, 22h @175°C
- Thermal Conductivity: 0.24 W/m·°C — ASTM C518
kSil® GP350
kSil® GP350 is a closed cell, lightweight silicone sponge with a density of 300 kg/m³ and a compression force deflection of 48 kPa. It is rated for service from -60°C to +230°C and features a very low compression set of 5% and a tensile strength of 750 kPa. Water absorption is less than 5%, and the material is available in thicknesses from 1.5 mm to 35 mm.
Key Properties
- Compression Force Deflection: 48 kPa (ASTM D1056)
- Tensile Strength: 750 kPa (ASTM D412)
- Elongation: 120% (ASTM D412)
- Compression Set: 5% (ASTM D1056)
- Density: 300 kg/m³ (ASTM D1056)
- Operating Temperature Range: -60°C to +230°C
kSil® GP40
kSil® GP40 is a general purpose solid silicone elastomer rated at 40 Shore A, providing a balance of flexibility and strength with the highest tear strength in the GP series at 23 N/mm (~131 ppi). It delivers 9 MPa (~1305 psi) tensile strength and 525% elongation, with compression set of 22% (22 hours @ 300°F) and 25% (24 hours @ 150°C). The material meets multiple international compliance standards including FDA 21 CFR 177.2600, FAR 25.853, FMVSS 302, and WRAS.
Key Properties
- Durometer: 40 Shore A — ISO 48-4
- Tensile Strength: 9 MPa (~1305 psi) — ISO 37 Type 2
- Elongation: 525 % — ISO 37 Type 2
- Compression Set, 22 Hours @ 300°F: 22 % — ISO 815, 22h @175°C
- Thermal Conductivity: 0.24 W/m·°C — ASTM C518
kSil® GP400
kSil® GP400 is a closed cell, lightweight silicone sponge with a density of 400 kg/m³ and a compression force deflection of 76 kPa — the firmest grade in the kSil® GP cellular sponge range. It is rated for service from -60°C to +230°C and carries the lowest compression set in the GP cellular range at 4%. Water absorption is less than 5%, and the material is available in thicknesses from 1.5 mm to 35 mm.
Key Properties
- Compression Force Deflection: 76 kPa (ASTM D1056)
- Tensile Strength: 750 kPa (ASTM D412)
- Elongation: 120% (ASTM D412)
- Compression Set: 4% (ASTM D1056)
- Density: 400 kg/m³ (ASTM D1056)
kSil® GP450
kSil® GP450 is a closed cell, lightweight silicone sponge with a density of 440 kg/m³ and a compression force deflection of 100 kPa. It is rated for service from -60°C to +230°C and features an exceptionally low compression set of 2% and a tensile strength of 1500 kPa. Water absorption is less than 5%, and the material is available in thicknesses from 1.5 mm to 8.0 mm.
Key Properties
- Compression Force Deflection: 100 kPa (ASTM D1056)
- Tensile Strength: 1500 kPa (ASTM D412)
- Elongation: 130% (ASTM D412)
- Compression Set: 2% (ASTM D1056)
- Density: 440 kg/m³ (ASTM D1056)
kSil® GP50
kSil® GP50 is a general purpose solid silicone elastomer rated at 50 Shore A, offering a medium hardness profile with good elongation and low compression set for a broad range of sealing, gasketing, and food-contact applications. It delivers 9 MPa (~1305 psi) tensile strength and 450% elongation, with compression set of 16% (22 hours @ 300°F) and 15% (24 hours @ 150°C). The material meets multiple international compliance standards including FDA 21 CFR 177.2600, FAR 25.853, FMVSS 302, and WRAS.
Key Properties
- Durometer: 50 Shore A — ISO 48-4
- Tensile Strength: 9 MPa (~1305 psi) — ISO 37 Type 2
- Elongation: 450 % — ISO 37 Type 2
- Compression Set, 22 Hours @ 300°F: 16 % — ISO 815, 22h @175°C
- Thermal Conductivity: 0.24 W/m·°C — ASTM C518
kSil® GP530
kSil® GP530 is a closed cell, lightweight silicone sponge with a density of 515 kg/m³ and a compression force deflection of 172 kPa — the highest in the kSil® GP cellular sponge range. It is rated for service from -60°C to +230°C and carries the highest tensile strength in the GP cellular range at 2000 kPa, with a compression set of 2%. Water absorption is less than 5%, and the material is available in thicknesses from 1.5 mm to 8.0 mm.
Key Properties
- Compression Force Deflection: 172 kPa (ASTM D1056)
- Tensile Strength: 2000 kPa (ASTM D412)
- Elongation: 130% (ASTM D412)
- Compression Set: 2% (ASTM D1056)
- Density: 515 kg/m³ (ASTM D1056)
- Operating Temperature Range: -60°C to +230°C
kSil® GP60
kSil® GP60 is a general purpose solid silicone elastomer rated at 60 Shore A, offering medium-firm hardness with excellent compression set performance and high tensile strength for demanding sealing and structural silicone applications. It delivers 10 MPa (~1450 psi) tensile strength and 400% elongation, with compression set of 10% (22 hours @ 300°F) and 13% (24 hours @ 150°C). The material meets multiple international compliance standards including FDA 21 CFR 177.2600, FAR 25.853, FMVSS 302, and WRAS.
Key Properties
- Durometer: 60 Shore A — ISO 48-4
- Tensile Strength: 10 MPa (~1450 psi) — ISO 37 Type 2
- Elongation: 400 % — ISO 37 Type 2
- Compression Set, 22 Hours @ 300°F: 10 % — ISO 815, 22h @175°C
- Thermal Conductivity: 0.24 W/m·°C — ASTM C518
kSil® GP70
kSil® GP70 is a general purpose solid silicone elastomer rated at 70 Shore A — the firmest grade in the kSil® GP series — offering the lowest compression set in the series (9% @ 24 hours @ 150°C) and high tensile strength for applications requiring dimensional stability and firm sealing under load. It delivers 10 MPa (~1450 psi) tensile strength and 320% elongation with 20 N/mm (~114 ppi) tear strength. The material meets multiple international compliance standards including FDA 21 CFR 177.2600, FAR 25.853, FMVSS 302, and WRAS.
Key Properties
- Durometer: 70 Shore A — ISO 48-4
- Tensile Strength: 10 MPa (~1450 psi) — ISO 37 Type 2
- Elongation: 320 % — ISO 37 Type 2
- Compression Set, 24 Hours @ 150°C: 9 % — ISO 815, 24h @150°C
- Thermal Conductivity: 0.24 W/m·°C — ASTM C518
- Tear Strength: 20 N/mm (~114 ppi) — ASTM D624 Die B
kSil® GP80
kSil® GP80 is a general purpose solid silicone elastomer with an 80 Shore A durometer, making it the firmest grade in the GP solid silicone range. It delivers a tensile strength of 8 MPa and a thermal conductivity of 0.24 W/m·°C. The material meets multiple international food contact, aerospace, and automotive compliance standards.
Key Properties
- Durometer: 80 Shore A (ISO 48-4)
- Tensile Strength: 8 MPa (ISO 37 Type 2)
- Elongation: 300% (ISO 37 Type 2)
- Compression Set, 24 Hours @ 150°C: 18% (ISO 815, 24h @150°C)
- Tear Strength: 20 N/mm (ASTM D624 Die B)
kSil® US30
kSil® US30 is an ultra-soft solid silicone elastomer with an exceptionally high elongation of 800% — no durometer value is listed on the manufacturer's TDS for this grade. It achieves a tensile strength of 9 MPa and a compression set of 19% after 24 hours at 150°C. The material meets multiple aerospace, food contact, and automotive compliance standards including AA-59588, FAR 25.853 Horizontal, FDA 21 CFR 177.2600, BfR XV, EC 1935/2004, and FMVSS 302.
Key Properties
- Tensile Strength: 9 MPa (ISO 37 Type 2)
- Elongation: 800% (ISO 37 Type 2)
- Compression Set, 24 Hours @ 150°C: 19% (ISO 815, 24h @150°C)
- Tear Strength: 18 N/mm (ASTM D624 Die B)
- Thermal Conductivity: 0.24 W/m·°C (ASTM C518)
kSil® US350
kSil® US350 is a lightweight, closed cell silicone sponge with a density of 300 kg/m³ and a compression force deflection of 48 kPa, approved to Aerospace Material Specification AMS 3195. It is rated for service from -60°C to +230°C, passes FAR 25.853 Horizontal flame resistance at both 12 and 60 seconds, and exhibits water absorption of less than 5%. The material is available in thicknesses from 1.6 mm to 25.0 mm.
Key Properties
- Compression Force Deflection: 48 kPa (ASTM D1056)
- Tensile Strength: 1034 kPa (ASTM D412)
- Elongation: 300% (ASTM D412)
- Compression Set: 8% (ASTM D1056)
- Density: 300 kg/m³ (ASTM D1056)
- Operating Temperature Range: -60°C to +230°C
kSil® US40
kSil® US40 is a solid silicone elastomer with a 40 Shore A durometer, offering high elongation of 550% and a tensile strength of 9 MPa. It meets AA-59588 and AMS 3301 specifications and is compliant with FAR 25.853 Horizontal and FDA 21 CFR 177.2600. The material is available in red-orange, black, and grey.
Key Properties
- Durometer: 40 Shore A (ISO 48-4)
- Tensile Strength: 9 MPa (ISO 37 Type 2)
- Elongation: 550% (ISO 37 Type 2)
- Compression Set, 24 Hours @ 150°C: 24% (ISO 815, 24h @150°C)
- Tear Strength: 18 N/mm (ASTM D624 Die B)
- Thermal Conductivity: 0.24 W/m·°C (ASTM C518)
kSil® US400
kSil® US400 is a lightweight, closed cell silicone sponge with a density of 440 kg/m³ and a compression force deflection of 100 kPa, approved to Aerospace Material Specification AMS 3196. It is rated for service from -60°C to +230°C, passes FAR 25.853 Horizontal flame resistance at both 12 and 60 seconds, and features a very low compression set of 3%. Water absorption is less than 5%, and the material is available in thicknesses from 1.6 mm to 25.0 mm.
Key Properties
- Compression Force Deflection: 100 kPa (ASTM D1056)
- Tensile Strength: 1100 kPa (ASTM D412)
- Elongation: 320% (ASTM D412)
- Compression Set: 3% (ASTM D1056)
- Density: 440 kg/m³ (ASTM D1056)
- Operating Temperature Range: -60°C to +230°C
kSil® US50
kSil® US50 is a solid silicone elastomer with a 50 Shore A durometer, offering a balanced combination of elongation (310%) and low compression set (12%). It meets AA-59588 and AMS 3302 specifications and is compliant with FAR 25.853 Horizontal and FDA 21 CFR 177.2600. The material is available in red-orange, black, and grey.
Key Properties
- Durometer: 50 Shore A (ISO 48-4)
- Tensile Strength: 7.5 MPa (ISO 37 Type 2)
- Elongation: 310% (ISO 37 Type 2)
- Compression Set, 24 Hours @ 150°C: 12% (ISO 815, 24h @150°C)
- Tear Strength: 18 N/mm (ASTM D624 Die B)
- Thermal Conductivity: 0.24 W/m·°C (ASTM C518)
kSil® US60
kSil® US60 is a solid silicone elastomer with a 60 Shore A durometer, a tensile strength of 8 MPa, and an elongation of 275%. It carries the broadest compliance portfolio in the kSil® US series, meeting AA-59588, AMS 3303, BfR XV, EC 1935/2004, FAR 25.853 Horizontal, FDA 21 CFR 177.2600, and FMVSS 302. The material is available in red-orange, black, and grey.
Key Properties
- Durometer: 60 Shore A (ISO 48-4)
- Tensile Strength: 8 MPa (ISO 37 Type 2)
- Elongation: 275% (ISO 37 Type 2)
- Compression Set, 24 Hours @ 150°C: 17% (ISO 815, 24h @150°C)
- Tear Strength: 17 N/mm (ASTM D624 Die B)
- Thermal Conductivity: 0.24 W/m·°C (ASTM C518)
kSil® US70
kSil® US70 is a solid silicone elastomer with a 70 Shore A durometer — the firmest grade in the kSil® US series — with a tensile strength of 8 MPa and an elongation of 300%. It meets AA-59588, AMS 3304, BfR XV, EC 1935/2004, FAR 25.853 Horizontal, FDA 21 CFR 177.2600, and FMVSS 302. The material is available in red-orange, black, and grey.
Key Properties
- Durometer: 70 Shore A (ISO 48-4)
- Tensile Strength: 8 MPa (ISO 37 Type 2)
- Elongation: 300% (ISO 37 Type 2)
- Compression Set, 24 Hours @ 150°C: 24% (ISO 815, 24h @150°C)
- Tear Strength: 19 N/mm (ASTM D624 Die B)
- Thermal Conductivity: 0.24 W/m·°C (ASTM C518)
kSil® V-0 70
kSil® V-0 70 is a 70 Shore A solid silicone elastomer specifically formulated to meet stringent flame, rail, and mass transit standards, with a tensile strength of 10.2 MPa and an elongation of 320%. It carries UL 94 V-0, EN 45545, NFPA 130, FAR 25.853 Horizontal and Vertical, and FMVSS 302 compliance. The material is available in grey only.
Key Properties
- Durometer: 70 Shore A (ISO 48-4)
- Tensile Strength: 10.2 MPa (ISO 37 Type 2)
- Elongation: 320% (ISO 37 Type 2)
- Compression Set, 24 Hours @ 150°C: 20% (ISO 815, 24h @150°C)
- Tear Strength: 19 N/mm (ASTM D624 Die B)
- Thermal Conductivity: 0.24 W/m·°C (ASTM C518)
Extreme Flame Retardant Silicone Sheeting
Extreme Flame Retardant Silicone Sheeting is a solid silicone elastomer engineered for high flame resistance, available in 60 Shore A (brown) and 65 Shore A (black) durometer grades. Both grades carry UL 94V0 Yellow Card certification and comply with FAR 25.853, with an operating temperature range of -85°F to +550°F (intermittent). The 60 durometer brown grade additionally generates low smoke density, making it suitable for interior transportation applications including rail, air, and sea environments.
Key Properties
- Durometer, Shore "A": 65 ±5 (black) / 60 ±5 (brown) — ASTM D2240
- Tensile Strength, psi: 750 (black) / 1000 (brown) — ASTM D412
- Elongation, %: 240 (black) / 150 (brown) — ASTM D412
- Tear, ppi Die "B": 85 (black) / 125 (brown) — ASTM D624
- Specific Gravity, g/cc: 1.17 (black) / 1.30 (brown) — ASTM D297
- Service Temperature: -85°F to +550°F (intermittent)
Extreme High-Temperature Grade Silicone Sheeting
Extreme High-Temperature Grade Silicone Sheeting is a solid silicone elastomer formulated with advanced heat stabilizer technology to exceed the thermal performance of standard general-purpose silicone, with an operating range of -85°F to +600°F (intermittent). Available in 55 and 60 Shore A durometer grades, the material delivers high tensile strength, elongation, and tear resistance maintained after extended heat aging — greater than 750 psi tensile, greater than 90% elongation, and greater than 70 ppi tear after 168 hours at 300°C.
Key Properties
- Durometer, Shore "A": 60 ±5 (60 Duro) / 55 ±5 (55 Duro) — ASTM D2240
- Tensile Strength, psi: 1200 (60 Duro) / 1050 (55 Duro) — ASTM D412
- Elongation, %: 450 / 450 — ASTM D412
- Tear, ppi Die "B": 140 (60 Duro) / 130 (55 Duro) — ASTM D624
- Specific Gravity, g/cc: 1.27 (60 Duro) / 1.25 (55 Duro) — ASTM D297
- Service Temperature: -85°F to +600°F (intermittent)
Extreme Low-Temperature / High Strength Silicone Sheeting
Extreme Low-Temperature / High Strength Silicone Sheeting is a PVMQ-based solid silicone elastomer combining cryogenic-rated cold flexibility with elevated tensile and tear strength for the most demanding aerospace, defense, and cryogenic sealing applications. With a service range of -178°F to +450°F (525°F intermittent) and compliance to A-A-59588 CL1A/1B/3A and AMS 3334–3346, it offers broader specification coverage than the standard PVMQ grade. Available from 30 to 80 Shore A durometer as a made-to-order product, in thicknesses from .010" to .500" and widths up to 60" in many colors.
Key Properties
- Durometer, Shore "A": 30 ±5 to 80 ±5 (six grades) — ASTM D2240
- Tensile Strength, psi: 850–1200 (varies by grade) — ASTM D412
- Elongation, %: 125–500 (varies by grade) — ASTM D412
- Tear, ppi Die "B": 100–175 (varies by grade) — ASTM D624
- Service Temperature: -178°F to +450°F (525°F intermittent)
- Specifications: A-A-59588 CL1A/1B/3A; AMS 3334, 3335, 3336, 3337, 3338, 3345, 3346
Extreme Low-Temperature Silicone Sheeting
Extreme Low-Temperature Silicone Sheeting is a PVMQ-based solid silicone elastomer engineered for cryogenic and extreme cold-weather sealing applications, with an operating range of -130°F to +450°F (525°F intermittent). Available from 30 to 80 Shore A durometer, it meets A-A-59588 CL1A/1B and AMS 3334–3338 specifications, making it suitable for demanding aerospace, defense, and cryogenic programs. The material is made to order and available in many colors, in thicknesses from .010" to .500" and widths up to 60".
Key Properties
- Durometer, Shore "A": 30 ±5 to 80 ±5 (six grades) — ASTM D2240
- Tensile Strength, psi: 550–750 (varies by grade) — ASTM D412
- Elongation, %: 150–300 (varies by grade) — ASTM D412
- Tear, ppi Die "B": 80–110 (varies by grade) — ASTM D624
- Service Temperature: -130°F to +450°F (525°F intermittent)
- Specifications: A-A-59588 CL1A/1B; AMS 3334, 3335, 3336, 3337, 3338
Fiberglass Reinforced Silicone Sheeting
Fiberglass Reinforced Silicone Sheeting is a plain-weave fiberglass-reinforced solid silicone elastomer engineered for demanding static and dynamic sealing applications where enhanced tensile and tear strength are required. The composite construction provides a minimum combined tensile strength of 1,300 psi with excellent weatherability and resistance to swell in lubricating oils. The material maintains physical properties across a wide temperature range of -80°F to +500°F.
Key Properties
- Durometer, Shore "A": 70 ±10 — ASTM D2240
- Tensile Strength (Fiberglass & Silicone), psi: 1300 Min — —
- Compression Set, %: 35 Maximum — —
- Fiberglass Break Strength, psi: 400×350 — —
- Fiberglass Thickness: .014" — —
- Service Temperature: -80°F to +500°F
Fluorosilicone (FVMQ) Calendered Sheet
Fluorosilicone (FVMQ) Calendered Sheet is a 40 Shore A fluorosilicone elastomer that combines the broad temperature capability of silicone with outstanding chemical resistance to petroleum oils, hydrocarbon fuels, diester oils, dilute acids, and alkalines. Rated for service from -80°F to +450°F (500°F intermittent) and meeting AMS-R-25988 TY2CL1 GRADE 40, it is suited for aerospace, military, and automotive sealing applications. The material carries a low compression set and is produced with FDA-compliant ingredients per Title 21 CFR 177.2600.
Key Properties
- Durometer, Shore "A": 40 ±5 — ASTM D2240
- Tensile Strength, psi: 1200 — ASTM D412
- Elongation, %: 600 — ASTM D412
- Tear, ppi Die "B": 153 — ASTM D624
- Specific Gravity, g/cc: 1.41 — ASTM D297
- Service Temperature: -80°F to +450°F (500°F intermittent)
Low Outgassing Silicone Sheeting
Low Outgassing Silicone Sheeting is a solid silicone elastomer specifically formulated and post-cured to minimize the release of volatile compounds under vacuum and/or elevated temperature conditions. The material meets ASTM E595 outgassing requirements with Total Mass Loss (TML) ≤1.00% and Collected Volatile Condensable Material (CVCM) ≤0.10%, meeting the criteria of NASA-STD-6016 for low-outgassing materials. Available in 40, 50, 60, and 70 Shore A durometer grades, it is peroxide free, odorless, and tasteless, with an operating range of -85°F to +525°F (intermittent).
Key Properties
- Durometer, Shore "A": 40 ±5 to 70 ±5 (four grades) — ASTM D2240
- Tensile Strength, psi: 1100–1250 (varies by grade) — ASTM D412
- Elongation, %: 650–900 (varies by grade) — ASTM D412
- Tear, ppi Die "B": 175–200 (varies by grade) — ASTM D624
- Total Mass Loss (TML): ≤1.00% — ASTM E595
- Service Temperature: -85°F to +525°F (intermittent)
Medical Grade Silicone Sheeting
Medical Grade Silicone Sheeting is a solid silicone elastomer formulated from domestically produced silicone rubber. Per the supplier’s documentation, the material family is offered for medical-device applications including implant contact up to 29 days in the human body, and is referenced to USP Class VI, European Pharmacopeia, ISO 10993, and FDA 21 CFR 177.2600 (a food-contact composition standard); the supplier states it is free of organic plasticizers, phthalates, and peroxide cure by-products. Suitability for any implant or patient-contact use must be verified against the supplier’s current documentation for the specific grade and lot, and evaluated by the device maker for the intended device. Available from 10 to 70 Shore A durometer in gloss or matte finish, in thicknesses from .010" to .500" and widths up to 60"; this is a made-to-order product with an operating range of -80°F to +450°F (500°F intermittent).
Key Properties
- Durometer, Shore "A": 30 ±5 to 70 ±5 (seven grades) — ASTM D2240
- Tensile Strength, psi: 1100–1350 (varies by grade) — ASTM D412
- Elongation, %: 600–900 (varies by grade) — ASTM D412
- Tear, ppi Die "B": 170–205 (varies by grade) — ASTM D624
- Service Temperature: -80°F to +450°F (500°F intermittent)
Medium Strength Grade Silicone Sheeting
Medium Strength Grade Silicone Sheeting is a solid silicone elastomer engineered to deliver higher tensile strength, tear resistance, and elongation than general-purpose silicone grades. Available from 25 to 85 Shore A durometer, it provides a superior gasket and sealing solution across a wide hardness range with an operating temperature of -80°F to +450°F (500°F intermittent). The material is easily die-cut and available in thicknesses from .010" to .500" and widths up to 60".
Key Properties
- Durometer, Shore "A": 30 ±5 to 80 ±5 (seven grades) — ASTM D2240
- Tensile Strength, psi: 750–1200 (varies by grade) — ASTM D412
- Elongation, %: 300–900 (varies by grade) — ASTM D412
- Tear, ppi Die "B": 130–200 (varies by grade) — ASTM D624
- Specific Gravity, g/cc: 1.06–1.22 (varies by grade) — ASTM D297
- Service Temperature: -80°F to +450°F (500°F intermittent)
Metal Detectable Grade Silicone Sheeting
Metal Detectable Grade Silicone Sheeting is a solid silicone elastomer incorporating magnetic detectability, enabling seal fragments to be quickly identified and sequestered in-process through magnetic collection. Designed for food, beverage, dairy, and pharmaceutical processing environments where contamination prevention is critical, the material provides an additional layer of product safety in regulated production lines. Available in 40, 50, 60, and 85 Shore A durometer grades, it is peroxide free, odorless, tasteless, non-toxic, and chemically inert, with an operating range of -85°F to +525°F (intermittent).
Key Properties
- Durometer, Shore "A": 40 ±5 to 85 ±5 (four grades) — ASTM D2240
- Tensile Strength, psi: 1050–1250 (varies by grade) — ASTM D412
- Elongation, %: 100–800 (varies by grade) — ASTM D412
- Tear, ppi Die "B": 100–190 (varies by grade) — ASTM D624
- Magnet Pull Test: 4 kg maximum pull (20.5 mm diameter magnet)
- Service Temperature: -85°F to +525°F (intermittent)
SSP2575
SSP2575 is a 65 durometer heat-cured silicone elastomer formulated for low outgas and low temperature applications, with low temperature flexibility to -116°C (-177°F). Tensile strength is 1,350 psi, elongation 600%, and specific gravity 1.18–1.24. Supplied catalyzed with a Varox (DBPH) peroxide cure system, ready for press-cure molding as compound, compression-molded sheet stock, or custom-molded parts. Black is standard; custom pigmenting is available. Cure profile is 10 minutes at 177°C (350°F) with a 4-hour post bake at 200°C (390°F).
Key Properties
- Durometer (Shore A): 65 (59–69 range)
- Tensile Strength: 1,350 psi (350 psi minimum)
- Elongation: 600% (175% minimum)
- Specific Gravity: 1.18–1.24
- Low Temperature Flexibility: -116°C (-177°F)
- Cure System: Varox (DBPH) peroxide, low outgas formulation