From the Silicone Brand, Supreme Silicone Window & Door sealant is a premium, silicone and waterproof sealant that can provide a reliable seal in weather-prone areas such as windows, doors, basements, roofs, sidewalks, siding, tuckpointing and attics

This sealant 40% more flexibility than Class 25 sealants and 7X stronger adhesion than Silicone 1 sealant

And, it 50% joint movement capability without cracking, shrinking, breaking down or washing away

This sealant has lifetime mold- product protection to resist stain-causing mold and mildew growth

Backed by a lifetime