From the #1 Silicone Brand, 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 40% 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.
- 100% WEATHERPROOF: This 100% silicone formula offers ultimate protection from water damage, providing a reliable seal in areas prone to consistent weather and water exposure
- LIFETIME MOLD-FREE PRODUCT PROTECTION: Resists stain-causing mold and mildew growth
- 100% MORE FLEXIBILITY & 7X STRONGER ADHESION: Stays permanently flexible with excellent adhesion and provides a durable seal for exterior and interior projects
- 30-MINUTE RAIN-READY: Ready for rain exposure in as little as 30 minutes
- SHRINK & CRACK-PROOF: Withstands extreme expansion or contraction associated with temperature fluctuations
- FREEZE & SUN-PROOF: Resists freezing temperatures and UV degradation for a permanently flexible seal
- WON’T BLEMISH METALS: Will not discolor most high-end metal finishes like chrome, bronze and nickel