70 Durometer Translucent FDA Grade Solid Silicone
70 Durometer Translucent FDA Grade Solid Silicone is a translucent FDA grade solid silicone sheeting rated at 70 Shore A, designed for high food contact and dairy applications requiring a firm, high-strength sealing material with excellent physical robustness. It maintains continuous service from -80°F to 450°F, with intermittent capability to 500°F. The material passes FDA 21 CFR 177.2600 and is odorless, tasteless, and non-yellowing.
Key Properties
- Durometer / Hardness (Shore A): 70 ±5 — ASTM D2240
- Tensile Strength: 1250 psi — ASTM D412
- Elongation: 650% — ASTM D412
- Tear Strength: 200 psi — ASTM D624
- Specific Gravity: 1.19 g/cc — ASTM D297
- Service Temperature Range: -80°F to 450°F continuous; 500°F intermittent
We want to help!
Enter your information and we'll get you in touch with our knowledgable staff. We know how important to the right product for your project.
Request a Consultation
- Specifications
- Applications
- General Info
- FAQs
Physical Properties
| Property | Value | Test Method |
| Material / Substrate | Solid Silicone | — |
| Color | Translucent | — |
| Specific Gravity | 1.19 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) | 70 ±5 | ASTM D2240 |
| Tensile Strength | 1250 psi | ASTM D412 |
| Elongation | 650% | ASTM D412 |
| Tear Strength | 200 psi | ASTM D624 |
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 dairy and high food contact processing equipment requiring maximum firmness and tear resistance
- Die-cut sealing components for FDA-regulated environments under high compressive load and physical stress
- Seals and gaskets demanding odorless, tasteless, non-yellowing, and visually inspectable properties
- Firm sealing elements in food processing assemblies where minimal gasket creep is required
- General-purpose food-grade seals across a broad thermal service range
Common industries: Dairy processing, food processing, food service equipment, pharmaceutical, beverage equipment.
70 Durometer Translucent FDA Grade Solid Silicone is the firmest grade in the translucent FDA silicone sheeting series at 70 Shore A, providing the highest tear resistance (200 psi) in the series alongside 1250 psi tensile strength and FDA 21 CFR 177.2600 compliance. It is designed for food contact and dairy sealing applications where the gasket must resist both physical damage and permanent deformation under sustained compressive load.
The translucent appearance, combined with odorless, tasteless, and non-yellowing properties, supports use in hygienic food processing and dairy environments where visual inspection and contamination prevention are critical.
The material provides 650% elongation, retaining die-cut fabricability at firm hardness. It exhibits excellent UV and ozone resistance and functions as an effective electrical insulator.
Compliant with FDA 21 CFR 177.2600 — Pass.
What differentiates 70 Durometer Translucent FDA Grade Solid Silicone from softer translucent FDA grades in this series?
70 Durometer Translucent FDA Grade Solid Silicone is the firmest grade in the translucent FDA silicone series at 70 Shore A, delivering the highest tear resistance in the lineup at 200 psi and the highest specific gravity at 1.19 g/cc. This combination of firmness, tear resistance, and FDA compliance makes it the preferred choice for food contact sealing applications where sharp contact edges, high handling stress, or sustained compressive load are present.
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 70 Durometer Translucent FDA Grade Solid Silicone?
70 Durometer Translucent 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 70 Durometer Translucent FDA Grade Solid Silicone suitable for food contact and dairy environments?
Yes. This material passes FDA 21 CFR 177.2600 and is specifically designed for high food contact and dairy applications. It is odorless, tasteless, and non-yellowing, as stated on the TDS.
How should 70 Durometer Translucent FDA Grade Solid Silicone be specified?
Specify grade (70 Durometer Translucent FDA Grade Solid Silicone), thickness, compliance requirements, dimensional tolerances, and finished format.
