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
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- Specifications
- Applications
- General Info
- FAQs
Mechanical Properties
| Property | Value | Test Method |
| Durometer (Shore A) | 59 | — |
| Tensile Strength | 1,500 psi | — |
| Elongation | 770% | — |
| Tear Strength (Die B) | 215 ppi | — |
| Specific Gravity | 1.17 | — |
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% | ASTM E595-15 |
| Collected Volatile Condensable Materials (CVCM) | 0.004% | ASTM E595-15 |
| Water Vapor Regain (WVR) | 0.04% | ASTM E595-15 |
Third-party test (Exova-OCM) on SSP2390-60D per ASTM E595-15, reported by the manufacturer. 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
- Firm-mid silicone components requiring high tensile strength and elevated tear resistance
- USP Class VI biocompatible medical device structural components
- Food-contact firm sealing under FDA 21 CFR § 177.2600 (dry and fatty foods)
- Pharmaceutical and laboratory equipment requiring firm silicone elastomer service
- Custom-molded parts where tear resistance (215 ppi) is critical
Common industries: Medical device, pharmaceutical, food processing, laboratory and analytical instruments, electronic gasket converting.
SSP2390-60D is a translucent platinum-cured silicone elastomer manufactured by Specialty Silicone Products, Inc. (SSP), supplied platinum pre-catalyzed and ready for immediate use. The 60D grade has a Shore A durometer of 59, positioning it in the firm-mid range of the SSP2390 Series. Tensile strength of 1,500 psi is essentially equivalent to the peak 50D value, with elongation of 770% matching 50D.
Tear strength (Die B) of 215 ppi represents a meaningful step up from the mid-range grades — the second-highest tear strength in the series. The 60D grade is well-suited for firmer silicone applications requiring strong tensile capability and improved tear resistance over the softer and mid grades.
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.
What differentiates SSP2390-60D from other grades in the SSP2390 Series?
60D delivers nearly the same tensile strength as the peak 50D grade (1,500 vs 1,510 psi) but at a higher Shore A 59 durometer with substantially improved tear strength (215 vs 165 ppi). Select 60D when the application benefits from firmer durometer and elevated tear resistance without sacrificing tensile capability.
Why is durometer selection important when specifying SSP2390-60D?
Durometer determines stiffness, sealing pressure capability, and dimensional stability. At Shore A 59, the 60D grade is the firm-mid range 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 SSP2390-60D?
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 SSP2390-60D 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 SSP2390-60D be specified?
Specify product (SSP2390-60D), 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.
