Product Overview
40 Durometer Translucent FDA Grade Solid Silicone — Technical Overview & FAQs
Product Overview
40 Durometer Translucent FDA Grade Solid Silicone Rubber is a soft, resilient, platinum-cured elastomer engineered for food-contact safety, reliable medium-compression sealing, and sanitary performance across demanding temperature ranges.
Fully compliant with FDA 21 CFR 177.2600, this silicone is non-toxic, odorless, and tasteless, making it ideal for food processing, beverage equipment, medical devices, and pharmaceutical systems requiring clean, hygienic sealing solutions.
At 40 Shore A, this grade provides a perfect blend of flexibility and structural stability, offering more firmness than 20A or 30A grades while still delivering excellent conformability for medium-pressure sanitary applications.
The translucent appearance supports visual inspection and is preferred in hygienic, medical, and food-related environments.
Applications
Sanitary gaskets and medium-compression food-safe seals
Beverage dispensing and filtration systems
Pharmaceutical and laboratory instruments
Cleanroom and hygienic enclosure sealing
Medical device housings (non-implant)
FDA-compliant die-cut gaskets, strips, pads, and extruded profiles
Key Properties
Material Type: Platinum-cured FDA Silicone Rubber
Durometer: 40 Shore A (soft-medium firmness)
FDA Compliance: Meets FDA 21 CFR 177.2600
Flexibility: High — conforms well to surfaces while maintaining structure
Compression Set: Low — excellent sealing retention
Mechanical Strength: Stronger than 20A and 30A grades; ideal for moderate compression
Temperature Range: –80 °F to +450 °F (–62 °C to +232 °C)
Environmental Resistance: UV, ozone, moisture, and steam resistant
Chemical Resistance: Resists sanitizers, food-safe cleaning agents, and CIP solutions
Appearance: Translucent clarity suitable for hygienic equipment
Available Formats: Sheets, rolls, strips, die-cut parts, PSA-backed silicone, extrusions
Compliance: FDA 21 CFR 177.2600 | RoHS | REACH
FAQs
What is 40 Durometer Translucent FDA Silicone used for?
It is used for sanitary food-processing seals, beverage equipment gaskets, medical housings, and pharmaceutical systems requiring medium-compression, food-safe silicone rubber.
How does 40 durometer silicone compare to softer grades?
40A silicone provides:
More firmness than 20A or 30A
Better dimensional stability
Improved sealing pressure under moderate compression
Continued flexibility for hygienic applications
Is this material FDA-approved for food-contact applications?
Yes — it is compliant with FDA 21 CFR 177.2600, ensuring safe use in food, beverage, and hygienic environments.
Can this silicone withstand high temperatures, steam, and washdowns?
Absolutely — it operates reliably across –80 °F to +450 °F, and is resistant to:
Steam
Hot water
CIP chemicals
Sanitizing agents
High-temperature cooking and processing environments
Can 40A FDA silicone be provided as die-cut or adhesive-backed components?
Yes — H-O Products produces die-cut gaskets, PSA-backed silicone parts, extruded shapes, strips, and custom OEM sanitary components.
Contact H-O Products today for 40 Durometer Translucent FDA Silicone samples, technical data, or custom sanitary gasket manufacturing support - contact us.
