Product Information High Performance Building Dow Corning SJ168 Silicone Weatherproofing Sealant Features Ease of application. Ready to use as supplied; one-component, moisture cure, no need for mixing. Weatherability; offers resistance to sunlight, rainwater, snow, ozone and extreme temperatures. Durability; the cured sealant can maintain its elasticity in temperatures of -50ºC to 150ºC without hardening, cracking or degrading. Reasonable operation time; allows operators greater control of application and tooling time. No slumping; can be used for the sealing of vertical and wide joints. Benefits Suitable for weatherproofing applications such as glass, aluminum extrusion and composite panels. Cures to a durable, flexible, elastic silicone rubber seal. Neutral cure, one-component, silicone weatherproofing sealant APPLICATION Dow Corning SJ168 Silicone Weatherproofing Sealant is a one-component, neutral curing construction sealant which can provide a long-term, elastic, waterproof rubber seal design for normal building facade and glazing applications.