Supreme Silicone Window & Door sealant is a premium, 100% silicone and 100% waterproof sealant that provides a reliable seal in weather-prone areas like windows, doors, basements, roofs, sidewalks, siding, tuckpointing and attics. This sealant offers 100% more flexibility than Class 25 sealants and 7X stronger adhesion than Silicone 1® sealant. And, it offers 50% joint movement capability without cracking, shrinking, breaking down or washing away. This sealant has lifetime mold-free product protection that resists stain-causing mold and mildew growth. Backed by a lifetime guarantee.
Adheres to: most metals & woods, aluminum, composites, brick, stone, stucco, masonry, cement board, glass, ceramic & porcelain tile, drywall, plaster, vinyl siding, PVC, fiberglass & painted surfaces
100% silicone
100% weatherproof
Lifetime mold-free product protection†
Meets ASTM C-920, Class 50
100% more flexibility than Class 25 sealants†
7X stronger adhesion†
30-minute rain-ready†
Shrink & crack-proof
Resists UV degradation
Won’t blemish most high-end metal finishes like chrome, bronze & nickel
Lifetime guarantee†
Neutral curing with low odor
Non-paintable