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
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- Specifications
- Applications
- General Info
- FAQs
Mechanical Properties
| Property | Value | Test Method |
| Durometer (Shore A) | 48 | — |
| Tensile Strength | 1,510 psi | — |
| Elongation | 770% | — |
| Tear Strength (Die B) | 165 ppi | — |
| Specific Gravity | 1.14 | — |
Material & Process Properties
| Property | Value | Test Method |
| Material Type | Translucent Heat-Cured Silicone Elastomer | — |
| Cure System | Platinum (Pre-catalyzed) | — |
| Cure Profile | Compression cure, 10 minutes at 177°C (350°F) | — |
| Standard Colors | Translucent base; red, black, gray, white available | — |
| Supply Formats | Ready-to-mold compounds, compression molded sheet stock, roll stock | — |
Regulatory / Compliance Data
| Property | Value | Test Method |
| Food Contact Compliance | Pass — Dry food and fatty foods | FDA 21 CFR § 177.2600 |
| Biocompatibility | Compliant (base material) | USP Class VI |
| RoHS | Compliant | — |
The base material meets USP Class VI requirements; pigments used in custom Pantones need separate testing per color by the end user. Cured product has been tested per FDA 21 CFR § 177.2600 and meets requirements for contact with dry food and fatty foods.
Shelf Life / Storage
| Property | Value | Test Method |
| Compound Shelf Life | 6 months (cold storage may extend) | — |
| Cured Product Shelf Life | 15 years | — |
Outgassing (ASTM E595)
| Property | Value | Test Method |
| Total Mass Loss (TML) | 0.05% (60D grade tested) | ASTM E595-15 |
| Collected Volatile Condensable Materials (CVCM) | 0.004% (60D grade tested) | ASTM E595-15 |
| Water Vapor Regain (WVR) | 0.04% (60D grade tested) | ASTM E595-15 |
Third-party test (Exova-OCM) on SSP2390-60D per ASTM E595-15, reported by the manufacturer; the 50D grade was not the tested sample. Spacecraft screening limits are TML ≤1.00% and CVCM ≤0.10%. Manufacturer’s outgassing report (PDF).
Compliance
- FDA 21 CFR § 177.2600 (Food Contact — Dry & Fatty Foods) — Compliant
- USP Class VI (Biocompatibility) — Compliant (base material)
- RoHS — Compliant
- ASTM E595 low-outgassing screening (TML ≤1.00%, CVCM ≤0.10%) — Meets, per manufacturer’s third-party report on the 60D grade
- Applications requiring maximum tensile strength in a silicone elastomer (1,510 psi)
- USP Class VI biocompatible components subject to high tensile loading
- Food-contact components under FDA 21 CFR § 177.2600 requiring peak tensile capability
- Pharmaceutical and laboratory equipment requiring strong mid-durometer silicone elastomer
- Custom-molded structural-grade silicone parts requiring 50% elongation reserve at peak load
Common industries: Medical device, pharmaceutical, food processing, laboratory and analytical instruments, electronic gasket converting.
SSP2390-50D is a translucent platinum-cured silicone elastomer manufactured by Specialty Silicone Products, Inc. (SSP), supplied platinum pre-catalyzed and ready for immediate use. The 50D grade has a Shore A durometer of 48, with tensile strength of 1,510 psi — the peak tensile value across the entire SSP2390 Series. Elongation of 770% remains strong, and tear strength (Die B) of 165 ppi matches the 40D grade.
The 50D grade is the optimal selection when maximum tensile capability matters more than minimum or maximum durometer; it represents the peak of the tensile curve in the series, with both softer and firmer grades exhibiting lower tensile values.
Available as a ready-to-mold compound or as compression-molded sheet stock or roll stock, in a translucent base or red, black, gray, and white standard colors. Custom Pantone matching is available with the caveat that pigments require separate USP Class VI testing per color by the end user. Cure profile is 10 minutes at 177°C (350°F) compression cure. Compound shelf life is 6 months (cold storage may extend); cured product shelf life is 15 years.
Compliant with FDA 21 CFR § 177.2600 (Food Contact, Dry & Fatty Foods), USP Class VI (Biocompatibility), and RoHS.
What differentiates SSP2390-50D from other grades in the SSP2390 Series?
50D is the peak-tensile grade in the series at 1,510 psi — higher than both the softer grades (which are limited by formulation softness) and the firmer grades (which tend to embrittle slightly at higher durometer). Combined with 770% elongation and Shore A 48, this makes 50D the optimal selection when maximum tensile capability is the primary requirement.
Why is durometer selection important when specifying SSP2390-50D?
Durometer determines stiffness, sealing pressure capability, and dimensional stability. At Shore A 48, the 50D grade is the peak tensile strength in series of the SSP2390 Series — appropriate when the application calls for this specific stiffness range. For softer service consider lower-numbered grades (10D / 20D / 30D); for firmer service consider higher-numbered grades (60D / 70D / 80D).
What is the operating temperature range for SSP2390-50D?
The TDS does not publish a service temperature range. Cure profile is specified at 177°C (350°F). Specifiers requiring service temperature data should contact SSP directly.
Is SSP2390-50D suitable for medical device, food-contact, or RoHS-regulated applications?
Yes. 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. Caveat per the TDS: pigments used in custom Pantone colors require separate USP Class VI testing per color by the end user.
How should SSP2390-50D be specified?
Specify product (SSP2390-50D), color (translucent base / red / black / gray / white / custom Pantone with separate USP Class VI testing per color), supply format (ready-to-mold compound / sheet stock / roll stock / converted die-cut), compliance requirements (FDA 21 CFR § 177.2600 / USP Class VI / RoHS as applicable), dimensional tolerances, and finished format.
