ASTM Classification : HK
ASTM Designation : FKM
ISO Designation : FPM
Temperature Range : - 20°C to 204°C (General Compounds)
- 40°C to 225°C(Special Compounds)
Fluoroelastomer or Fluorocarbon Rubber (FKM/FPM) is a synthetic rubber with Fluorine as one of its main constituents. Fluorine content may vary from 65% to 70% depending on the grade selected.
66% Fluorine grades are the most widely used and are Bisphenol Cured. Other grades may be Bisphenol / Peroxide cured.
Fluorocarbon Rubber has excellent high temperature capabilities along with resistance to ozone, weathering, oxygen, many acids, solvents & chemicals.
Special Fluorocarbon grades offer very good low temperature properties.
ISG offers various Grades/Families of Viton from Chemours (Formerly Dupont)
|Good resistance to Petroleum Oils/Fuels, Mineral Oils/Grease|
|Good Resistance to Ozone, Weathering & Aging Resistance|
|Resistance to Flame Resistivity & Acids|
|Good Resistance to Aliphatic / Aromatic Hydrocarbons|
|Works well with Vacuum Applications|
|Poor resistance to Steam|
|Poor resistance to Ketones|
|Poor Resistance to Phosphate Ester Fluids|
|Poor Resistance to Formic & Acetic Acids|
|Doesnot works well with Brake Fluids (Glycol Base)|