3M Clear Bra Paint 3M Scotchgard surface protection film is virtually invisible once installed.Bulk Film Roll 2"-by-72"-inches Clear polyurethane film is 8mil thick with adhesive backing. Product applied to reduce paint chips and bug damage. Keeps your car's paint looking newer, longer. Step by step installation instructions available online. Paint protection film is the most effective way to defend your vehicle from the damage caused by stones, sand, gravel, road debris and insects. The film is 8 mil (0.008 ") thick and has a transparent top-coat finish that allows the transparent bra to shine like your vehicle's paint, almost invisible on the painted surface of your vehicle