WACKER® PRIMER G 718 improves adhesion of ELASTOSIL® RTV-1 silicone rubber to smooth surfaces such as metals or plastics. WACKER® PRIMER G 718 forms a silicone-resin film and is not suitable for highly alkaline surfaces. Application: WACKER® PRIMER G 718 improves adhesion of ELASTOSIL® RTV-1 silicone rubber to some plastics and especially to metals that may have been surface treated. Brief baking of the substrate (where feasible) at 120 to 150 °C after the primer film has formed will further enhance adhesion. Baking will improve adhesion to metals most of all. It will also increase the primer’s resistance to silicone rubbers that have a high solvent content. Consumption of WACKER® PRIMER G 718 is about 30 - 50 g/m². Information provided by Wacker Chemie AG. |