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Specifications

USI Functional Silane Si-69
 Product Description
                    ChemicalName: Bis-[Gamma-(triethoxysilyl)-propyl]-tetrasulfide
 CAS NO.: 40372-72-3
 
 Specifications       
Appearance                     transparent or light yellow liquid Viscosity (cst)                  11.2
Specific Gravity(20°C, g/cm3)     1.084-1.094
Refractive Index()           1.4845–1.4855
Sulfur content(% )                ≥22
 Applications 
                   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’s especially applicable for polymers with double bond or rubber formulation with hydroxyl fillers. The suitable fillers include silica, silicate, clay, etc. The suitable rubber include natural rubber (NR), Butadiene styrene rubber (SBR), Isoprene rubber (IR), Butadiene rubber (BR), Acrylonitrile butadiene rubber (NBR), Ethylene propylene diene rubber (EPDM), etc.