DOWSIL™ 890-SL Silicone Joint Sealant One-part, self-leveling silicone material that cures to an ultra-low-modulus silicone rubber upon exposure to atmospheric moisture. The cured silicone rubber remains flexible from -20 to 300°F. DOWSIL™ 791 Weatherproofing Sealant Dow's one-part, medium...