Bus Kote - 1 Gallon Suitable for application on recreational vehicles and trailers, boxcars, trucks and transportation v Forms a waterproofing bond that resists over 100 mph wind-driven rains Fortified with ThermaCels, Bus Kote insulates and sound proofs the roofing structure Mildewcides and bactericides resist the formation of mildew Environmentally safe and non-toxic!