Product Overview
70 Durometer Translucent FDA Grade Solid Silicone — Technical Overview & FAQs
Product Overview
70 Durometer Translucent FDA Grade Solid Silicone Rubber is a firm, high-strength, platinum-cured silicone elastomer designed for demanding sanitary sealing, high-pressure compression environments, and food-contact safety.
Fully compliant with FDA 21 CFR 177.2600, it is odorless, tasteless, non-toxic, and engineered for food, beverage, pharmaceutical, and hygienic industrial applications requiring exceptional durability and sealing force.
At 70 Shore A, this silicone provides significantly more rigidity and mechanical strength than softer FDA grades such as 30A–60A, making it ideal for applications requiring precise dimensional stability, firm sealing pressure, and long-term resistance to mechanical stress.
The translucent appearance supports sanitary inspection, cleanroom suitability, and hygienic equipment design.
Applications
High-pressure food-safe gaskets
Beverage processing and dispensing equipment
Pharmaceutical and bioprocessing seals
Oven, heater, and high-temperature food equipment
Firm sanitary enclosure gaskets
FDA-compliant die-cut seals, extruded profiles, and strips
Key Properties
Material Type: Platinum-cured FDA Silicone Rubber
Durometer: 70 Shore A (firm grade)
FDA Compliance: Meets FDA 21 CFR 177.2600
Mechanical Strength: High tensile and tear resistance
Compression Set: Excellent — maintains sealing pressure after repeated cycles
Flexibility: Lower than 50A–60A grades but offers superior rigidity and sealing power
Temperature Range: –80 °F to +450 °F (–62 °C to +232 °C)
Environmental Resistance: Resists UV, ozone, weathering, steam, and moisture
Chemical Resistance: Excellent resistance to CIP chemicals, detergents, and sanitizers
Aesthetic: Translucent appearance for sanitary and inspection-friendly applications
Available Formats: Sheets, rolls, extrusions, die-cut gaskets, PSA-backed components
Compliance: FDA 21 CFR 177.2600 | RoHS | REACH
FAQs
What is 70 Durometer Translucent FDA Silicone used for?
It is used for high-pressure sanitary seals, dimensional-control gaskets, food-processing equipment, and pharmaceutical components requiring a firm FDA-grade silicone.
How does 70A silicone compare to softer FDA silicone grades?
70A silicone offers:
Greater firmness than 30A–60A grades
Higher structural support and stability
Superior performance under high clamping loads
Enhanced durability and reduced deformation
Is this silicone approved for food-contact applications?
Yes — this material meets FDA 21 CFR 177.2600, making it safe for incidental food-contact sealing.
Can 70 durometer silicone withstand heat, steam, and sanitation chemicals?
Yes — it performs across –80 °F to +450 °F, resisting:
Steam and hot water
CIP washdowns
Cleaning and sanitation chemicals
High-temperature processing environments
Can 70A silicone be fabricated into custom shapes or adhesive-backed gaskets?
Absolutely — H-O Products provides die-cut gaskets, extruded profiles, strips, and PSA-backed sanitary silicone components.
Contact H-O Products today to request 70 Durometer Translucent FDA Silicone samples, specifications, or custom gasket solutions designed for high-pressure hygienic environments - contact us.
