Product Overview
40 Durometer FDA Grade Solid Silicone — Technical Overview & FAQs
Product Overview
40 Durometer FDA Grade Solid Silicone Rubber is a soft, flexible, platinum-cured silicone elastomer designed for applications requiring food-contact safety, reliable sealing, and excellent temperature and environmental stability.
Certified to FDA 21 CFR 177.2600, this material is safe for food, beverage, pharmaceutical, and sanitary equipment applications where non-toxic, odorless, and tasteless materials are required.
At 40 Shore A, this grade offers a versatile balance between softness and structural support—ideal for sanitary gaskets, processing equipment seals, dispensing systems, and medical device housings requiring moderate compression and long-term reliability.
Applications
Food and beverage processing gaskets
Sanitary equipment seals
Pharmaceutical and laboratory device components
Medium-compression hygienic enclosure seals
Medical device housing gaskets (non-implant)
FDA-compliant die-cut gaskets, strips, and pads
Key Properties
Material Type: FDA Grade Solid Silicone Rubber
Durometer: 40 Shore A (soft, moderate-firmness FDA silicone)
FDA Compliance: FDA 21 CFR 177.2600 (food-contact safe)
Tensile Strength: Good mechanical strength for soft FDA elastomers
Elongation: High elasticity with excellent recovery
Compression Set: Very low — maintains sanitary sealing over time
Temperature Range: –80 °F to +450 °F (–62 °C to +232 °C)
Environmental Resistance: UV, ozone, weather, and steam resistant
Chemical Resistance: Withstands cleaning solutions, CIP washdowns, and mild sanitizers
Color Options: Typically white, translucent, or custom sanitary colors
Formats Available: Sheets, rolls, strips, extruded profiles, die-cut parts, PSA-backed
Compliance: FDA 21 CFR 177.2600 | RoHS | REACH
FAQs
What is 40 Durometer FDA Grade Silicone used for?
It is used for sanitary gaskets, food-processing equipment, beverage systems, lab equipment, and medium-compression sealing applications requiring FDA-approved materials.
Is 40 durometer silicone safe for food contact?
Yes — it fully complies with FDA 21 CFR 177.2600, making it appropriate for incidental food-contact applications and sanitary systems.
How firm is 40 durometer FDA silicone?
40A silicone offers a balanced blend of:
Soft flexibility
Moderate compression resistance
Reliable dimensional support
It is firmer than 30A FDA silicone but still soft enough for hygienic sealing.
Can FDA silicone withstand high temperatures and steam?
Yes — it operates from –80 °F to +450 °F and provides excellent resistance to steam, hot water, and sanitizing chemicals used in food and pharma environments.
Can this material be supplied in custom-cut or adhesive-backed formats?
Absolutely — H-O Products offers die-cut FDA silicone gaskets, PSA-backed components, strips, sheets, and custom sanitary shapes designed for OEM processing equipment.
Contact H-O Products to request 40 Durometer FDA Grade Solid Silicone samples, FDA compliance data, or custom-engineered sanitary gasket solutions - contact us.
