Seal and protect with Pergo® PerimeterSeal Tape. Eliminate the mess of silicone caulk—Pergo® PerimeterSeal tape provides a clean, fast way to seal expansion gaps and transitions on all floating waterproof floors. Made from high-grade 6 mil polyethylene with a permanently tacky rubber adhesive, it outperforms traditional silicone caulking methods. For a quick, clean, and watertight seal, choose Pergo® PerimeterSeal.