DOWSIL™ 789 Silicone Weatherproofing Sealant is a premium, one-part, neutral-cure, low-modulus sealant (50% ± extension/compression) designed for high-performance weather sealing in curtain walls, building facades, and glazing. It provides primerless adhesion to most materials, is UV-resistant, and remains flexible from -50°C to 150°C.
