Si-69 is a kind of silane coupling agent with multiple functional groups successfully used in rubber industry to improve modulus and tensile strength of rubber, to reduce the compound viscosity and save process energy consumption. It is applicable for natural and synthetic rubbers, mainly used in making tires, rolls, belts, cable, footwear and other rubber products.

Si 69 - Silane Coupling Agent is a bifunctional, sulfur-containing organosilane for rubber applications in combination with white fillers containing silanol groups.rubber_chemical

Application
Si 69® reacts with silanol groups of white fillers during mixing and with the polymer during vulcanization under formation of covalent chemical bonds. This imparts greater tensile strength, higher moduli, reduced compression set, increased abrasion resistance and optimized dynamic properties. Si 69® is used in almost all fields of the rubber industry where silanol group-containing white fillers are used and optimum technical properties are required.

Application fields are: Low rolling resistance tires, mechanical rubber goods, shoe soles.