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
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- Specifications
- Applications
- General Info
- FAQs
Mechanical Properties
| Property | Value | Test Method |
| Durometer (Shore A) | 79 | — |
| Tensile Strength | 1,310 psi | — |
| Elongation | 670% | — |
| Tear Strength (Die B) | 160 ppi | — |
| Specific Gravity | 1.21 | — |
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 | — |
Compliance
- FDA 21 CFR § 177.2600 (Food Contact — Dry & Fatty Foods) — Compliant
- USP Class VI (Biocompatibility) — Compliant (base material)
- RoHS — Compliant
- Structural silicone components requiring maximum stiffness in a USP Class VI compliant material
- Firm-durometer medical device components requiring biocompatible elastomer service with dimensional stability
- Food-contact structural components under FDA 21 CFR § 177.2600 (dry and fatty foods)
- Pharmaceutical and laboratory equipment requiring firm structural silicone elastomer
- Custom-molded parts where maximum stiffness and minimum elongation (670%) are appropriate to the application geometry
Common industries: Medical device, pharmaceutical, food processing, laboratory and analytical instruments, electronic gasket converting.
SSP2390-80D is a translucent platinum-cured silicone elastomer manufactured by Specialty Silicone Products, Inc. (SSP), supplied platinum pre-catalyzed and ready for immediate use. The 80D grade has a Shore A durometer of 79, positioning it as the firmest grade in the SSP2390 Series.
Tensile strength of 1,310 psi reflects modest reduction from the peak 50D/60D values (typical of the highest-durometer formulations), with elongation of 670% as the lowest in the series — consistent with the firm character. Tear strength (Die B) of 160 ppi is moderate. Specific gravity of 1.21 is the highest in the series, reflecting the heaviest filler loading.
The 80D grade is well-suited for structural silicone applications requiring maximum stiffness and dimensional stability.
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 SSP2390-80D from other grades in the SSP2390 Series?
80D is the firmest grade in the series at Shore A 79, with the highest specific gravity (1.21) reflecting the heaviest filler loading. Tensile strength is 1,310 psi and elongation is 670% — the lowest elongation in the series. Select 80D when structural stiffness and dimensional stability are the primary requirements and softer grades cannot provide adequate sealing pressure or component rigidity.
Why is durometer selection important when specifying SSP2390-80D?
Durometer determines stiffness, sealing pressure capability, and dimensional stability. At Shore A 79, the 80D grade is the firmest grade 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 SSP2390-80D?
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 SSP2390-80D 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 SSP2390-80D be specified?
Specify product (SSP2390-80D), 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.
