Extreme Environment Seals

Aflas Rubber O Rings

Aflas Rubber O-Ring ⚡ Tetrafluoroethylene-Propylene (FEPM)

Technical Data

  • Material Grade: Aflas® FEPM Copolymer
  • Hardness Range: 70 – 90 Shore A
  • Temp. Range: -10°C to +200°C
  • Base Rating: Outstanding (pH 0-14)
  • Steam Rating: Superlative (to 200°C)
  • Acid Resistance: Highly Resistant

Extreme Chemical and High-Temperature Resistance in Alkaline Processes

Aflas® (FEPM) Rubber O-Rings are manufactured from a unique copolymer of tetrafluoroethylene and propylene. Unlike standard fluoroelastomers (FKM/Viton) which quickly degrade when exposed to strong bases, amines, or steam, Aflas® maintains complete mechanical integrity. Aflas® O-rings are specifically engineered for steam boilers, caustic clean-in-place (CIP) washdowns, and petroleum wells containing amine-based corrosion inhibitors.

Micro Engineering supplies high-performance Aflas® O-rings that excel in environments where other elastomers fail. Our Aflas® seals provide superb electrical insulation, low gas permeability, and virtual immunity to sour gas (H2S), brake fluids, and ozone. These properties make them highly recommended for high-pressure downhole drilling, chemical dosing lines, and industrial steam autoclaves.

Preferred sealing solution for amine-rich petroleum processes, high-pressure steam boilers, and caustic chemical dosing loops.

Why Choose Our Aflas® O-Rings?

Micro Engineering manufactures custom Aflas® rubber seals to ensure ultimate alkaline and steam resistance under high thermal stress.

Amine & Base Immunity

Highly resistant to organic bases, ammonia, and high-pH caustic washdowns that attack standard Viton O-rings.

Superlative Steam Tolerance

Operates continuously in high-pressure superheated steam environments up to 200°C without hardening or cracking.

Excellent Electrical Insulation

Aflas® has exceptional volume resistivity, making it ideal for electrical connector seals in deep-well telemetry.

Optimized Durometer Ratings

Available in 70, 80, and 90 Shore A grades to prevent mechanical extrusion under high differential pressures.