Struktol SCA 98 WT Bi-functional polysulfidic organosilane Struktol Crosslinking / Coupling / Curing Agents >> Silane Rubber - Elastomer (Chloroprene, Butyl …) STRUKTOL ® SCA 98 COUPLING AGENT COMPOSITION A bi-functional polysulfidic organosilane for the rubber industry. STRUKTOL ® SCA 98 is used to improve the reinforcing capability of fillers with silanol groups on their surface (e.g., silicas, silicates, clays, etc.), and also as an integral part of curing systems to improve crosslinking network properties. Bi-functional polysulfidic organosilane. Used as a coupling agent for rubber industry. Improves reinforcing capability of fillers and crosslinking network properties.