Silanes are adhesion promoters between organic and inorganic materials. As bi-functional molecules, their silica radicals unite with the silica in the restorative materials and their organic radicals co-polymerize with the organic matrix of the resin cements (methacrylates). Silanes are also called ceramic primers or bonding/coupling agents Indications: Treatment of internal surfaces of porcelain restorations and glass fiber posts before cementation with resin cements. Treatment of porcelain surfaces before repair with composite resin. Treatment of porcelain surfaces before bonding of porcelain. Benefits: Pre-activated Solvent based on ethanol Better adhesion