DESCRIPTION

Previous name: Tecnoflon P457
Current name: Tecnoflon P487S

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).
 

Tecnoflon® N 535 Fluoroelastomer (FKM)

Tecnoflon® N 535 is a low viscosity fluoroelastomer copolymer. Tecnoflon® N 535 is intended as a general purpose fluoroelastomer. It can be blended with other polymers of the Tecnoflon® family to meet specific requirements. Tecnoflon® N 535 does not contain curatives: therefore the proper levels of VANAX® FC-20 Granules and VANAX® FC-30 Granules must be added to achieve the required properties. It can be also cured with diamine based systems.

Some of the unique properties of Tecnoflon® N 535 are:
• Excellent compression set
• Lack of mold fouling
• Superior extrusion behavior
• Superior mold flow
• Excellent mold release

Tecnoflon N 535 can be used for injection and transfer molding of O-rings, gaskets and seals. Tecnoflon® N 535 can be mixed using typical fluoroelastomers compounding ingredients and mixing can be accomplished with two roll mills or internal mixers. Compounds based on Tecnoflon® N 535 can be dispersed in solvents for coating applications. Tecnoflon® N 535 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.