Material

Fluororubber (Viton)

Fluororubber, also known as Viton (DuPont)

FKM, also known as FPM or Viton, is a high-performance elastomer for outdoor use, contact with oils and fuels, acids and alkalis, and high temperatures.

Request material advice All materials

Abbreviation

FKM / FPM

Temperature

up to approx. +230 °C

Strength

Chemicals & heat

Property

flame-retardant

Overview

FKM / FPM in use

FKM or FPM, known among other names as Viton from DuPont, stands out for its wide range of possible applications.

The material is highly recommended for outdoor use, for contact with oils and fuels, for acids and alkalis, and for high-temperature applications.

Properties

Properties of FKM / FPM

Very good resistance to UV, ozone and weathering
Very good resistance to oils and greases
Very good resistance to fuels
Very good to good resistance to various chemical media
Good physical values for abrasion, elongation, tensile strength and compression set
Self-extinguishing or flame-retardant on request
Temperature resistant up to approx. +230 °C, but with disadvantages in low-temperature resistance compared with other elastomers

Chemical resistance

Resistance of FKM / FPM

1 = very good 2 = good 3 = limited 4 = poor 5 = very poor

Medium	Rating	Description
Mineral oils & greases	1	Very good resistance
Acids & alkalis, dilute	1	Very good resistance
Fuels	1	Very good resistance
Formic acid	3	Limited resistance
Butyric acid	4	Poor resistance
Acetic acid, 100 % concentrate	5	Very poor resistance
Sodium hydroxide solution, caustic soda	4	Poor resistance