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 PFR 95 is a perfluoroelastomer (FFKM) offering wide operational range and superior compression set
resistance, thanks to its unique peroxide curing system that does not need any coagent (TAIC or equivalent) for curing to be carried out. Thanks to its curing system, it can offer a very broad chemical resistance in a wide variety of media including acids, caustics, ketones, aldehydes, esters, ethers, methanol, solvents, sour gases, hydrocarbons, steam, hot water and mixed process streams along with excellent thermal resistance.

Tecnoflon PFR 95 is suitable for most applications in temperature ranging from -10 °C to 280 °C.

Tecnoflon® PFR 95 can be combined with other typical fluoroelastomer compounding ingredients; its mixing can be accomplished with two-roll mills or internal mixers. Finished goods may be produced by a variety of rubber processing
methods.The primary use for Tecnoflon® PFR 95 is the manufacturing of any kind of elastomeric sealing element such as O-rings, gaskets, valve bodies, butterfly valves, pump housings and stators, metal bonded parts, diaphragms, profiles, etc. These sealing elements can be used in mechanical seals, pumps, compressors, valves, reactors, mixers, sprayers, dispensers, quick connect couplings, controls, instrumentation, etc. in chemical and petrochemical industry, hydrocarbon processing, petroleum
exploration and extraction, food processing, pharmaceutical and bio-analytical industry, aerospace and semiconductor manufacturing industries.

Tecnoflon® PFR 95 is marketed in the form of raw polymer (1 kg box) in order to give the transformer the freedom and the opportunity to develop and fine-tune compounds and items best suited to produce high performance rubber articles such as O-rings, seals, diaphragms and other parts used in process industries.