WEICON Silicone A adhesive and sealant contains no solvents, has acetate-crosslinking properties, is strong, permanently elastic, resistant to ageing and chemicals, temperature resistant up to +180°C (+356°F), extremely elastic (breaking elongation >700%) and can be used universally. Silicone A adheres very well to steel, aluminium, glass, ceramics, and many additional materials. WEICON Silicone A can be used in machine and system construction, ventilation and air conditioning systems, in the energy and electrical industry, in exhibition construction and shopfitting and in many additional industrial applications. The surfaces must be clean and free of grease. Many surface contaminants, e.g. oil, dust and dirt, can be removed with WEICON Surface Cleaner. For heavily soiled metal surfaces, we recommend WEICON Cleaner Spray S; WEICON Sealant and Adhesive Remover is suitable for removing old paint or adhesive residues. Most materials can be bonded well to themselves and among each other. For certain materials or extreme requirements, we recommend the use of an adhesion agent (primer). Detailed information on this subject is contained in the primer selection table. A mechanical surface pre-treatment, e.g. sanding or sand- blasting, can considerably improve the adhesion. Processing Processing cartridge Application methods: Hand cartridge gun for 310 ml cartridges, compressed air gun (we recommend a variation with piston rod), automatic dosing systems. Processing tube Squeeze out by hand, close tube again immediately after use, opened tubes should be used up as quickly as possible. Joining the parts to be bonded To ensure optimum wetting, the parts must be joined before the first skin has been formed on the adhesive (skin-over time). Storage When unopened and stored at room temperature (+23°C and 50 % rel. humidity), WEICON elastic one-component adhesives and sealants have a shelf life of 15 months.