Daikin America: Fluoroelastomers
Daikin’s DAI-EL fluoroelastomer products provide excellent high temperature and aggressive fluids resistance in sealing and fluid transport applications for automotive, oil and gas, aerospace, chemical process, small engine, and other harsh sealing environments. Daikin’s global technical and manufacturing resources support new developments and application of Dai-EL FKM, each designed to meet specific OEM (end user) and fabricator (processor) requirements. In the Americas, as well as in Asia and Europe, Daikin partners with the DAI-EL customer to provide the best fluoroelastomer product solutions available in the world today.
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Bisphenol Curable Copolymers
Daikin bisphenol curable copolymers are copolymers of hexafluoropropylene and vinyldene fluoride, having 66% fluorine content, and contain a bisphenol curing agent and an accelerator. These products exhibit the best heat resistance and lowest compression set among the DAI-EL family. They are particularly suited for O-ring and oil seal applications in high-heat environments. Daikin offers injection and compression molding grades (low and medium viscosity), extrusion grade, metal adhesion grade, and compression set resistant grades. Daikin’s newest bisphenol curable copolymer, G-7000, has exceptional performance and processing characteristics.
Bisphenol Curable Terpolymers
Daikin Bisphenol curable terpolymers are terpolymers of hexafluoropropylene, vinylidene fluoride and tetrafluoroethylene. Their fluorine content is higher than copolymers, and range between 66% and 71%. They also contain bisphenol type curing agent and accelerator. These polymers are ideal for applications that require resistance to fuel mixtures and solvents, such as fuel hoses and seals used in chemical processing. Due to the higher fluorine content, low temperature resistance and compression set are reduced compared with copolymers. Injection and compression molding grades, extrusion grades, and lower temperature grades are available. G-5000, our most recently introduced bisphenol curable terpolymer, is extremely easy to process while maintaining excellent performance.
Peroxide Curable Copolymers
Daikin peroxide curable copolymers have 66% fluorine content. These products have better flex resistance, acid resistance, and overall mechanical properties than bisphenol cured copolymers. G-8000 is Daikin’s newest peroxide curable copolymer, and has excellent processing and performance characteristics. There is some reduction in high temperature resistance and compression set for peroxide curable copolymers compared with bisphenol cured. Injection and compression molding grades and improved mold flow grades are available. Post curing can be omitted for these polymers.
Peroxide Curable Terpolymers
Daikin peroxide curable terpolymers have between 69 and 71% fluorine content. They have better flex resistance, acid resistance, solvent resistance, and overall mechanical properties than bisphenol cured copolymers. As with peroxide cured copolymers, some reduction in high temperature resistance and compression set resistance is seen compared with bisphenol cured. Compression and injection molding, low compression set and lower temperature grades are available. Post curing can be omitted for these polymers. Daikin’s newest peroxide curable terpolymer, G9000, has excellent properties as well as superior processing performance.
Low Temperature Peroxide Curable
Daikin’s low temperature peroxide curable polymers have improved mechanical properties, flex resistance, acid resistance, low temperature performance, and flex cracking fatigue resistance compared with bisphenol cured copolymers. As with other peroxide cured polymers, some reduction in high temperature resistance and compression set is seen compared with bisphenol cured polymers. Injection and compression molding, fluid resistant and high elongation grades are available. Post curing can be eliminated for these polymers.
|Low Temperature Peroxide Curable Product Sheets
Daikin offers a number of specialty fluoroelastomer products. G101 is a liquid fluoroelastomer and is an excellent processing aid and hardness modifier. DAI-EL T530 was the first thermoplastic fluoroelastomer. Although it performs as an elastomer below its melting point, above its melting point it flows like a thermoplastic material. Daikin also produces high performance perfluoroelastomers. Perfluoroelastomers have the best chemical and thermal resistance of all the fluoroelastomer types.