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 7380K is a medium viscosity cure incorporated fluoroelastomer terpolymer (FKM) with 68 % fluorine content. Tecnoflon® FOR 7380K is designed to improve bonding in any application requiring adhesion to metal. In shaft seals or valve stem seals production, Tecnoflon® FOR 7380K greatly reduces the reject rate due to adhesion and molding problems. Tecnoflon® FOR 7380K contains a new curing system and proprietary special processing aid, providing superior processability for fast cycles and scorch safety. Some of the basic properties of Tecnoflon® FOR 7380K are: • Very good flow • Superior rubber-to-metal bond • Lack of mould fouling • Excellent hot tear resistance Tecnoflon® FOR 7380K can be used for compression, injection and transfer molding of shaft seals, valve stem seals, O-rings, gaskets and seals. This material can be extruded into hoses or profiles and can be calendered to make sheet stocks or belting. Tecnoflon® FOR 7380K can be combined with the cure system and other typical fluoroelastomer compounding ingredients. Mixing can be accomplished with two-roll mills or internal mixers.