Different rubber molders use different polymer suppliers. It is best not to specify and instead, lay out your physical requirements and general FKM. Most of the suppliers provide a polymer that will work for many applications. Chemours offer at least 25 different FKM polymers. These polymers differ in fluorine content, viscosity and curing method.
Typically, the higher the fluorine content, the better chemical resistance. Lower viscosity polymers are used for extrusions or to help mold flow for complex part configurations. Curing mechanisms can help with specific properties. For example, Bisphenol-cured polymers give better compression set resistance and Peroxide-cured compounds can provide chemical resistance. Viton AC — This is a polymer that is bisphenol-cured, and the cure is already incorporated into the polymer when sold.
Viton B — B type polymers have higher fluorine content than A types. FKM has a good resistant to mineral oils and greases, aliphatic, aromatic and also special chlorinated hydrocarbons, petrol, diesel fuels, silicone oils and greases. It is also suitable for high vacuum applications. All FKMs contain vinylidene fluoride as a monomer. Fluoroelastomers are more expensive than neoprene or nitrile rubber elastomers.
This type of polymer is used extensively by ERIKS, however we do not claim or promote the use of any specific brands of polymers in our compounds. The table below shows the available datasheets for this material in pdf.
Safety datasheets are available here. Home » Materials » FKM. Find a store nearby. Please note: This Material Data Sheet section is to be used as a professional guide only. Eastern Seals UK Ltd may source their products from a variety of Quality Approved Suppliers and the data shown should not be relied upon by any purchaser without verification of material source.
View Cart. FKM75 bonded seals. FKM75 vulcanised jointed rings. FKM75 extruded cord. FKM90 extruded cord. FKM90 Type B. V60 GR. V60 R. V60 WH. V75 brown. V75 FDA.
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