Product Overview
70 Durometer FDA Grade Solid Silicone — Technical Overview & FAQs
Product Overview
70 Durometer FDA Grade Solid Silicone Rubber is a firm, high-strength, platinum-cured silicone elastomer designed for applications requiring food-contact safety, high mechanical durability, and strong sealing pressure.
Fully compliant with FDA 21 CFR 177.2600, this material is odorless, tasteless, chemically inert, and suitable for food, beverage, pharmaceutical, and sanitary environments where firm gasket materials are essential.
At 70 Shore A, this grade provides excellent dimensional stability, high tensile strength, and low compression under load, making it ideal for high-pressure sealing, equipment housings, food machinery components, and industrial sanitary systems operating in demanding thermal or chemical environments.
Applications
High-pressure sanitary gaskets
Food-processing and beverage equipment seals
Pharmaceutical and bioprocessing systems
Industrial and sanitary enclosures requiring firm sealing
Oven, heater, and high-temperature food-grade components
FDA-compliant die-cut gaskets, strips, extruded profiles, and custom OEM parts
Key Properties
Material Type: FDA Grade Solid Silicone Rubber
Durometer: 70 Shore A (firmest standard FDA grade)
FDA Compliance: Meets FDA 21 CFR 177.2600
Mechanical Strength: High tensile and tear resistance
Compression Performance: Very low deflection under load (strong sealing pressure)
Elongation: Moderate — provides structural stability and reliable sealing
Temperature Range: –80 °F to +450 °F (–62 °C to +232 °C)
Environmental Resistance: Excellent UV, ozone, moisture, and steam resistance
Chemical Resistance: Withstands sanitizers, cleaning agents, and CIP washdowns
Color Options: White, translucent, red iron oxide, or custom sanitary colors
Available Formats: Sheets, rolls, strips, PSA-backed formats, die-cut gaskets, extrusions
Compliance: FDA 21 CFR 177.2600 | RoHS | REACH
FAQs
What is 70 Durometer FDA Grade Silicone used for?
It is used for high-pressure sanitary gaskets, food-processing equipment, pharmaceutical manufacturing systems, and industrial sanitary sealing where firm silicone rubber is required.
Is 70 durometer silicone safe for food-contact applications?
Yes. This material is fully compliant with FDA 21 CFR 177.2600, making it suitable for incidental food-contact sealing in food, beverage, and hygienic processing equipment.
How firm is 70 durometer silicone compared to softer FDA grades?
70A silicone is the firmest standard FDA silicone, offering:
Maximum structural rigidity
Minimal compression under load
Excellent long-term sealing pressure
Superior resistance to deformation
Can this material withstand high temperatures and sanitation cycles?
Yes — it performs reliably from –80 °F to +450 °F, and provides outstanding resistance to:
Steam
CIP cleaning chemicals
Sanitizing agents
Hot water washdowns
Can 70A FDA silicone be die-cut or fabricated into custom parts?
Absolutely — H-O Products supplies die-cut gaskets, strips, extruded profiles, PSA-backed components, and custom OEM sanitary parts made from this material.
Contact H-O Products to request 70 Durometer FDA Grade Solid Silicone samples, custom gasket fabrication, or FDA compliance documentation - contact us.
