FKM is a popular high-performance rubber that has great resistance to organic solvents, chemicals, mineral oil, oxygen, hydraulic fluids, fuels, ozone, high temperatures, and aromatics.
Salient Features:
Good tear strength
Flame retardant
Ozone, oxygen, and weather-resistant
Chemical and heat resistant
Low gas permeability
Cold flexibility
Low compression set
Common Applications:
Industrial applications
O-rings
Automotive applications
Aerospace applications
Chemical processing
Properties:
Hardness: 50-90 Shore A
Temperature resistance: -20° C to + 200° C (+ 250° C)
Standard colors: Black
Advantages:
FKM performs exceptionally well in mineral oil and grease, fuels or blends with ethanol or methanol, high vacuum environments, strong acids, ozone, and petroleum products.
Limitations:
FKM compounds are prone to acetic acids, superheat steam, chlorosulfonic acids at high heat, amines, formic acid, ketones, hydrofluoric, nitro hydrocarbons, and phosphate ester-based hydraulic fluids.