Gorilla Waterproof Patch & Seal Tape Clear instantly seals out water, air, and moisture. With an extra thick adhesive layer and UV resistant backing this tape conforms to form a permanent bond indoors and out. At 4" wide use it to patch holes, cracks, gaps and tears, even underwater. Excellent for Home, Auto, Marine, Camping, RVs, Outdoors, and more! Waterproof Works Under Water Indoor/Outdoor Instantly Seals Out Water, Air, & Moisture Permanent Bond Non-Yellowing