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Coupsil® VP 6508

Technical Datasheet | Supplied by Evonik
Precipitated silica, surface modified with organosilane Dynasylan® VTEO. It acts as a reinforcing filler in in peroxide-cured rubber compounds where optimum technical properties are required. It imparts greater tensile strength, higher moduli, optimized dynamic properties, lower compression set values and better abrasion resistance. It appears as a white powder and reacts with unsaturated polymers during vulcanization under formation of covalent chemical bonds. It offers the advantage of a homogeneous modification with low moisture adsorption during storage and significantly lowers development of ethanol during mixing and processing. It is a reaction product of organosilane Dynasylan® VTEO [vinyltriethoxysilane] with 8 parts and Ultrasil® VN 2 with 100 parts. It is used for mechanical rubber goods.
Product Type
Physical Form
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