Silane coupling agent UPSi-69 
 Foreign corresponding 
 Grade Si-69 (Degussa Corporation), A-1289 (U.S. GE / OSi Company), Z-6940 (Dow Corning) 
 Chemical Name Double - (γ-triethoxysilyl silicon-propyl) tetrasulfide 
 English name bis-(γ-triethoxysilylpropyl)-tetrasulfide 
 CAS No. 40372-72-3 
 Formula C18H42O6Si2S4 
 Structure 


 Molecular Weight 539.0 
 This product is a slight alcohol odor physical and chemical properties of the dark brown transparent liquid, density ρ201.08g / cm 3, the refractive index n D201.49. Soluble in lower alcohols, ketones, benzene, toluene, halogenated hydrocarbons, which does not dissolve in water. 
 Use of this product is a rubber plastic industry in the successful use of multi-functional silane coupling agent, and its application to rubber to improve the physical and mechanical properties, tensile strength, tear strength, abrasion resistance can be Dengjun significantly improved, permanent variant can be reduced, but also can reduce the compound viscosity and improve processing performance. Particularly applicable to silica or silicate as the reinforcing agent of the vulcanized rubber system, the application of fillers include silica, talc, clay, mica, clay, etc., for the polymer, including NR, IR, SBR, BR , NBR, EPDM and so on. 
 Plastic packaging products barrel, net weight 10kg, 25kg, 200kg or 1000kgIBC, or according to customer requirement. 
 Storage temperature, ventilation, drying dark sealed room.