Leakage fix repair seal waterproof tape is made of pvc as backing, single sided coating with rubber adhesive. the specially formulated with a thick, flexible, rubberized backing that conforms to any shape or object. it can be used in extreme weather conditions. widely use for pvc, acrylic, metal, steel, copper, aluminum, wood, ceramic, porcelain, tile, glass, rubber, fiberglass, stucco, plaster, stone, cement, concrete, dry wall, epdm roofs,some plastics, fabrics, vinyl and so much more!