{{refimprove, date=June 2008 A fluoroelastomer is a fluorocarbon-based synthetic rubber. Fluroelastomers generally have wide chemical resistance.

Composition

Several compositions of fluoroelastomers exist including

FKM FKM is a family of fluorocarbon-based fluoroelastomer materials defined by ASTM International standard D1418, and ISO 1629, ISO standard 1629. It is commonly called fluorine rubber or fluoro-rubber. FKM is an abreveation of Fluorine Kautschuk Mate ...

(by ASTM D1418 standard, equivalent to FPM by ISO/DIN 1629 standard); perfluoro-elastomers ( FFKM); and tetrafluoro ethylene/propylene rubbers ( FEPM).

Performance

The performance of fluoroelastomers in aggressive chemicals depends on the nature of the base polymer and the compounding ingredients used for moulding the final products (e.g. O-rings, shaft seals). This performance can vary significantly when end-users purchase polymer containing rubber goods from different sources. Fluoroelastomers are generally compatible with hydrocarbons, but incompatible with ketones such as

acetone Acetone (2-propanone or dimethyl ketone), is an organic compound with the formula . It is the simplest and smallest ketone (). It is a colorless, highly volatile and flammable liquid with a characteristic pungent odour. Acetone is miscib ...

and organic acids such as acetic acid.

References

Fluoropolymers Elastomers

Weblinks

Properties of Elastomers - Chemical Resitancelist
(PDF; 0,6 MB)
Designing with Fluoroelastomers
(PDF; 0,8 MB)