High-Performance Gaskets

FEP O Rings

FEP O-Ring ⚡ Fluorinated Ethylene Propylene

Technical Data

  • Material Grade: Solid / Hollow FEP
  • Hardness Range: 90 – 95 Shore A
  • Temp. Stability: -60°C to +204°C
  • Friction Coeff.: 0.08 – 0.1
  • Water Absorption: < 0.01%
  • Compliance: FDA 21 CFR 177.1550

Fluorinated Ethylene Propylene Gaskets for Sanitary and Chemical Processes

FEP (Fluorinated Ethylene Propylene) O-Rings provide outstanding resistance to corrosive fluids, extreme ozone, and steam. While FEP is a thermoplastic fluoropolymer related to PTFE, it features a lower melt viscosity and is fully melt-processable, allowing for flawless extrusion and molding of solid, hollow, or encapsulated rings. FEP O-rings are highly valued for their extremely low coefficient of friction and excellent non-stick characteristics.

Micro Engineering supplies precision-molded FEP O-rings designed to bridge the gap between hard PTFE rings and soft elastomers. Our FEP rings feature exceptional dielectric properties, virtual chemical inertness to acids, alkalies, and organic solvents, and zero fluid contamination risks. These parameters are essential for sanitization-in-place (SIP) and clean-in-place (CIP) loops in dairy processing, breweries, and biopharm manufacturing.

Preferred sealing solution for chemical process piping, food and beverage dosing lines, and sanitary pharmaceutical piping.

Why Choose Our FEP O-Rings?

Micro Engineering manufactures custom FEP rings to ensure maximum sanitation compliance and extreme chemical stability in aggressive fluid handling systems.

Sanitary FDA Material

Our FEP compounds comply fully with FDA CFR 21 177.1550 and USP Class VI requirements, preventing fluid contamination.

Universal Chemical Immunity

Unaffected by aggressive industrial chemicals, organic solvents, caustics, and ozone over all pH values.

Low Friction Interface

Very low coefficient of friction prevents stick-slip issues during startup, protecting critical seal faces.

Extreme Temp Stability

Maintains structural stability and sealing performance across a wide temperature range from -60°C up to +204°C.