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)
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- Specifications
- Applications
- General Info
- FAQs
Physical Properties
| Property | Value | Test Method |
| Specific Gravity, g/cc — 65 Duro Black | 1.17 | ASTM D297 |
| Specific Gravity, g/cc — 60 Duro Brown | 1.30 | ASTM D297 |
| Durometer, Shore “A” — 65 Duro Black | 65 ±5 | ASTM D2240 |
| Durometer, Shore “A” — 60 Duro Brown | 60 ±5 | ASTM D2240 |
| Tensile Strength, psi — 65 Duro Black | 750 | ASTM D412 |
| Tensile Strength, psi — 60 Duro Brown | 1000 | ASTM D412 |
| Elongation, % — 65 Duro Black | 240 | ASTM D412 |
| Elongation, % — 60 Duro Brown | 150 | ASTM D412 |
| Tear, ppi Die “B” — 65 Duro Black | 85 | ASTM D624 |
| Tear, ppi Die “B” — 60 Duro Brown | 125 | ASTM D624 |
Flame & Fire Performance
| Property | Value | Test Method |
| Flammability — 65 Duro Black | V0 | UL94 |
| Flammability — 60 Duro Brown | V0 | UL94 |
| NBS Smoke Chamber — Specific Optical Density, DM Corrected — 60 Duro Brown | 47 | NBS Smoke Chamber |
Compliance
- UL 94V0 — Compliant (Yellow Card on file with UL)
- FAR 25.853 — Compliant
- FDA Title 21 CFR 177.2600 — Compliant (65 durometer black grade; rubber articles intended for repeated use in contact with food)
- Aircraft interior seals and gaskets requiring UL 94V0 and FAR 25.853 compliance
- Rail and mass transit compartment sealing with low smoke density requirements
- Electrical insulation components in flame-critical assemblies
- High-temperature industrial gasketing in elevated-temperature environments
- Die-cut sealing solutions for transportation and aerospace flame-rated applications
Common industries: Aerospace, aviation, rail transportation, mass transit, industrial manufacturing, food processing (black grade).
Extreme Flame Retardant Silicone Sheeting is a dual-grade solid silicone product line engineered where UL 94V0 flammability performance is a primary design requirement. The 65 Shore A black grade and 60 Shore A brown grade both carry Yellow Card certification on file with UL and comply with FAR 25.853 for aircraft interior applications.
Both grades deliver silicone’s characteristic broad temperature range — rated from -85°F to +550°F intermittent — combined with resistance to UV, ozone, and electrical arc, making them suitable for demanding sealing and insulation use across transportation, industrial, and aerospace environments.
The 60 durometer brown grade extends the product’s applicability into enclosed transit environments through its low smoke density performance, tested per NBS Smoke Chamber (specific optical density, DM corrected: 47). This makes it appropriate for rail, air, and sea interior applications where smoke generation in a fire event is a regulatory concern.
The 65 durometer black grade carries FDA/Food Contact compliance, with ingredients listed under CFR 177.2600 for rubber articles intended for repeated use in contact with food. Both grades are easily die-cut and available in thicknesses from .010″ to .500″ and widths up to 60″.
Compliant with UL 94V0 (Yellow Card on file with UL), FAR 25.853, and FDA Title 21 CFR 177.2600 (65 durometer black grade).
What differentiates the 65 durometer black grade from the 60 durometer brown grade of Extreme Flame Retardant Silicone Sheeting?
The 65 Shore A black grade offers a firmer durometer with FDA/Food Contact compliance per CFR 177.2600. The 60 Shore A brown grade is softer, carries higher tensile strength (1,000 psi vs. 750 psi), and adds low smoke density performance tested per NBS Smoke Chamber — making it the preferred choice for enclosed interior transit environments where smoke generation in a fire event is a regulatory factor.
Why is the UL 94V0 rating significant for Extreme Flame Retardant Silicone Sheeting?
UL 94V0 is the most stringent classification in the UL 94 vertical burn test series, requiring that test specimens self-extinguish within 10 seconds after each flame application with no dripping of flaming particles. For sealing materials used in aircraft interiors, rail cars, or electrical enclosures, this rating provides documented evidence that the material will not propagate flame — a requirement in many aerospace and transportation specifications.
What is the operating temperature range for Extreme Flame Retardant Silicone Sheeting?
-85°F to +550°F (intermittent), as listed on the TDS.
Is Extreme Flame Retardant Silicone Sheeting suitable for aircraft interior applications?
Yes. Both grades comply with FAR 25.853, which governs flammability requirements for aircraft interior materials. Both grades also carry UL 94V0 Yellow Card certification. The 60 durometer brown grade additionally provides low smoke density performance relevant to enclosed cabin environments.
How should Extreme Flame Retardant Silicone Sheeting be specified?
Specify Extreme Flame Retardant Silicone Sheeting, durometer and color (65 Shore A black or 60 Shore A brown), thickness, compliance requirements (UL 94V0, FAR 25.853, CFR 177.2600 as applicable), dimensional tolerances, and finished format.
