Polymershapes 100% Silicone Sealant, Clear Caulk for Plastic Sheets, Weatherproof, Permanently Flexible, Indoor/Outdoor - 12 Pack (10.1 oz)

Polymershapes 100% Silicone Sealant is a professional-grade clear sealant engineered specifically for use with plastic sheets, polycarbonate, acrylic, LEXAN, glass, and metal surfaces. Whether you're sealing windows, glazing panels, waterproofing fixtures, or working on marine applications above the waterline, this silicone delivers a durable, flexible, and completely watertight bond that holds up in the toughest conditions. Unlike general-purpose caulks that can crack or harden over time, Polymershapes silicone remains permanently flexible after curing, allowing it to move naturally with surfaces as they expand and contract through temperature changes. The result is a long-lasting seal that stays intact season after season without peeling, shrinking, or breaking down. Application is fast and straightforward. The formula dries to the touch in just 15 minutes and reaches full cure in 12 hours. Primerless adhesion means no prep work or additional products needed - just apply directly to a clean surface and you're done. Heat resistant up to 400°F and UV resistant for reliable indoor and outdoor performance year-round. This case of 12 tubes is ideal for contractors, installers, maintenance teams, and frequent users who need a dependable supply ready to go. Polymershapes silicone is trusted across professional trades and available in the sizes you need to get the job done right.

• Professional-Grade 100% Silicone Formula: Polymershapes silicone sealant delivers a waterproof, watertight seal that won't crack, shrink, or wash away. Permanently flexible seal moves with surfaces through expansion and contraction without breaking down over time.
• Specifically Formulated for Plastic Sheets: Compatible with LEXAN polycarbonate, acrylic, glass, metal, and most plastic surfaces. Primerless adhesion bonds directly without prep work, making it the go-to sealant for plastic sheet installation and repair.
• Fast Cure, Long-Lasting Results: Dries to the touch in just 15 minutes and fully cures in 12 hours. Heat resistant up to 400°F and UV resistant for reliable performance in both indoor and outdoor applications year-round.
• Moisture, Fire & Weather Resistant: Built to withstand harsh conditions including extreme temperatures, heavy rain, and direct sun exposure. Non-toxic formula is safe for marine applications above the waterline, windows, aquariums, and bathroom fixtures.
• Case of 12 Tubes - Contractor Ready: Designed for professionals and frequent users who need reliable supply on hand. Each case provides consistent quality across every tube so your projects never get held up mid-job.