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
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- Specifications
- Applications
- General Info
- FAQs
Physical Properties
| Property | Value | Test Method |
| Material / Substrate | Solid Silicone | — |
| Color | White (other colors by special request) | — |
| Specific Gravity | 1.11 g/cc | ASTM D297 |
| Thickness | 1/32″, 1/16″, 3/32″, 1/8″, 3/16″, 1/4″, 1/2″ | — |
Mechanical Properties
| Property | Value | Test Method |
| 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 |
Thermal Properties
| Property | Value | Test Method |
| Low-Temperature Resistance | -80°F | — |
| High Temperature Resistance | 450°F | — |
| High Intermittent Temperature | 500°F | — |
Environmental Performance
| Property | Value | Test Method |
| Ozone Resistance | Excellent | — |
| UV Resistance | Excellent | — |
Regulatory / Compliance Data
| Property | Value | Test Method |
| FDA 21 CFR 177.2600 | Pass | — |
Compliance
- FDA 21 CFR 177.2600 — Compliant (Pass)
- Food contact gaskets and seals in food processing and food service equipment
- Die-cut sealing components for FDA-regulated environments
- General-purpose seals and gaskets requiring broad thermal performance
- Flexible sealing elements in applications requiring low closure force
- UV- and ozone-exposed outdoor sealing applications
Common industries: Food processing, food service equipment, pharmaceutical, HVAC, general industrial.
30 Durometer FDA Grade Solid Silicone is the softest grade in the FDA silicone sheeting series at 30 Shore A, formulated for food contact environments requiring a highly compliant, conformable sealing material. Its low durometer makes it well suited for gaskets and seals where minimal closure force is available or where the material must conform to irregular mating surfaces. Compliance with FDA 21 CFR 177.2600 makes it appropriate for use in food processing, food service, and related regulated environments.
The material delivers the highest elongation in the FDA silicone series at 800%, reflecting maximum flexibility. It exhibits excellent UV and ozone resistance, functions as an effective electrical insulator, and is readily fabricated by die-cutting into precision gasket and seal profiles.
What differentiates 30 Durometer FDA Grade Solid Silicone from higher-durometer FDA grades in this series?
30 Durometer FDA Grade Solid Silicone is the softest and most compliant grade in the FDA silicone series at 30 Shore A, with the highest elongation (800%) and the lowest specific gravity (1.11 g/cc). This makes it the appropriate selection when maximum flexibility and conformability are required in food contact sealing applications.
Why is compression set an important consideration for solid silicone elastomers?
Compression set measures how well an elastomer recovers its original thickness after sustained compression. In sealing applications, a material with high compression set will permanently deform over time, reducing sealing force and allowing leak paths to develop. Low compression set is listed as a key feature of this material, indicating it is formulated to maintain sealing integrity over extended service periods.
What is the service temperature range for 30 Durometer FDA Grade Solid Silicone?
30 Durometer FDA Grade Solid Silicone is rated for continuous service from -80°F to 450°F, with a high intermittent temperature resistance of 500°F, as listed on the TDS.
Is 30 Durometer FDA Grade Solid Silicone suitable for food contact environments?
Yes. This material passes FDA 21 CFR 177.2600 and is specifically designed for food contact applications, as stated on the TDS.
How should 30 Durometer FDA Grade Solid Silicone be specified?
Specify grade (30 Durometer FDA Grade Solid Silicone), thickness, color (white standard; other colors by special request), compliance requirements, dimensional tolerances, and finished format.
