Chemical NameMixture of bis-[3-(triethoxysilyl)-propyl]-tetrasulfide and Silica AppearanceWhite powder. Specifications
Specific gravity (25ºC)
1.25 ± 0.10
Weight Lose in 105ºC/10min (%)
ApplicationRT-69C is a kind of multifunctional silane coupling agent that has been used successfully in the rubber industry.RT-69C can be used in the vulcanized rubber system with fillers such as silica, fiberglass, talc powder, mica powder and clay as reinforcing agent. It can improve the reinforcing properties of fillers and rubber abrasive resistance properties.It is suitable to be used as rubber additive---vulcanizing agent and activator in polymers such as NR, IR, SBR, BR, NBR and EPDM.In the process of vulcanization, the crosslinking rate of sulfur alkyl is the same as deoxidizing rate of sulfur, so it act to resist deoxidizing of vulcanization of sulfur, and then improve dynamic bending properties such as heat build up and cracks expansion .The sulfur atoms can act as activator for vulcanization.In dynamic and static conditions, It is used for producing these rubber products: tire, hose, rubber roll, belting, cable, shoe and mechanical founding products. It can improve abrasive resistance, cutting resistance and pressure resistance, reduce hysteresis loss and hygroscopicity , improve mechanical and adhesive properties, increase thermal ageing performance, modulus and flex life. DosageRecommend dosage1.0-6.0 PHR Package and storage20 kg in plastic bag.Sealed storing:Keep in the cool, dry and well-ventilated place.Storage lifeLonger than six months in normal storing conditions.