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.