80 Durometer FDA Grade Solid Silicone
80 Durometer FDA Grade Solid Silicone is an FDA grade solid silicone sheeting rated at 80 Shore A, designed for food contact applications requiring a high-durometer, firm sealing material with broad thermal performance. It 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): 80 ±5 — ASTM D2240
- Tensile Strength: 950 psi — ASTM D412
- Elongation: 300% — ASTM D412
- Tear Strength: 100 ppi — ASTM D624, Die B
- Specific Gravity: 1.49 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 | 1.49 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) | 80 ±5 | ASTM D2240 |
| Tensile Strength | 950 psi | ASTM D412 |
| Elongation | 300% | ASTM D412 |
| Tear Strength | 100 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 requiring maximum firmness
- Die-cut sealing components for FDA-regulated environments under high compressive load
- Precision separators and insulators in food-grade thermal processing equipment
- General-purpose firm seals and gaskets across a broad thermal service range
- UV- and ozone-exposed food-grade sealing applications demanding profile retention
Common industries: Food processing, food service equipment, pharmaceutical, HVAC, general industrial.
80 Durometer FDA Grade Solid Silicone is the firmest grade in the FDA silicone sheeting series at 80 Shore A, designed for food contact environments where maximum hardness and minimal deformation under load are required.
With a specific gravity of 1.49 g/cc — the highest in the FDA series — and 950 psi tensile strength, this grade provides a dense, dimensionally stable profile appropriate for food processing gaskets, separators, and seals that must maintain precise geometry under sustained compressive force. Compliance with FDA 21 CFR 177.2600 qualifies it for food contact use.
The material exhibits excellent UV and ozone resistance and functions as an effective electrical insulator. Low compression set is cited as a key feature, supporting sustained sealing performance. The sheeting is readily processed by die-cutting.
Compliant with FDA 21 CFR 177.2600 — Pass.
What differentiates 80 Durometer FDA Grade Solid Silicone from softer FDA grades in this series?
80 Durometer FDA Grade Solid Silicone is the firmest grade in the FDA silicone series at 80 Shore A, with the highest specific gravity (1.49 g/cc) in the lineup. This density and stiffness combination is the appropriate selection for food contact sealing applications where the gasket must resist permanent deformation under sustained compressive load while maintaining FDA compliance.
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 80 Durometer FDA Grade Solid Silicone?
80 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 80 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 80 Durometer FDA Grade Solid Silicone be specified?
Specify grade (80 Durometer FDA Grade Solid Silicone), thickness, color (white standard; other colors by special request), compliance requirements, dimensional tolerances, and finished format.
