DESCRIPTION

Tecnoflon FKM fluoroelastomers consist of copolymers and terpolymers with a fluorine content of 66% and 68-70% respectively. They are available as base polymers (gumstock) or products formulated with ionic or peroxide curable systems.

Ionic Curable FKM
Ionic curable FKM materials have a good balance of mechanical properties and sealing performance along with ease of processing. They are available as base polymers (gumstock) or grades formulated with incorporated cure systems (denoted by the FOR prefix in the grade name). A variety of possible combinations of viscosity, cure rate, and cross-link density make them suitable for any molding process. The HS copolymers are designed for low post-cure cycles. Rubber-to-metal bonding grades are available for all molding techniques.

Ionic curable Tecnoflon® FKM products are categorized according to their monomer composition
* Copolymers are versatile polymers based on VDF and HFP monomers and have a fluorine content of 66%.
* Terpolymers offer better chemical resistance than copolymers due to their higher fluorine content (68-70%).
* Low-temperature terpolymers provide chemical resistance similar to ionic curable copolymers. Polymers have a fluorine content of 65.5% and they exhibit a lower glass transition temperature (Tg).
 

FKM Tecnoflon FOR 9381 is a medium-viscosity, cure incorporated fluoroelastomer terpolymer (FKM) with 68.5% fluorine content. Tecnoflon® FOR 9381 is well-suited for all applications requiring better chemical resistance and/or long term heat resistance as compared to fluoroelastomer copolymers. Tecnoflon® FOR 9381 contains proprietary cure system and special process aid, providing superior processability for fast cycles and scorch safety.

Some of the basic properties of Tecnoflon® FOR 9381 are:
- Very good processability
- Excellent chemical resistance
- Low compression rate
- Good heat resistance

Tecnoflon® FOR 9381 can be used for compression, injection and transfer-molding of shaft seals, valve stem seals, gaskets, or any item requiring excellent chemical resistance. Tecnoflon® FOR 9381 can be combined with both the cure system and other typical fluoroelastomer compounding ingredients. Mixing can be accomplished with two roll mills or internal mixers. Tecnoflon® FOR 9381 can be extruded into hoses or profiles and can be calendered to make sheet stocks or belting. Finished goods can be produced by a variety of rubber processing methods.