Petrotac is a unique "peel and stick" waterproofing membrane for effective repair of pavement cracks, joints of potholes and for sealing bridge decks. This product is a composite of Petromat nonwoven fabric coated with a rubberized asphalt adhesive mastic. The adhesive mastic easily bonds to the existing pavement surface, allowing for quick, uncomplicated product installation. A unique asphalt top coating ensures an excellent bond with the pavement overlay.