A protection compound, semi flexible, salt and water resistant... Suitable for door sills, chassis, fuel tanks, wheel arches etc... Suitable for use with acrylic or cellulose paint. If an over-paintable surface is required use Stoneguard. Fast drying. Tough durable finish. Hycote under body protection compound is a semi flexible salt and water resistant compound. Contains bitumen which imparts a continuous flexible anti crack film. Unique multi-directional sprayhead allows application to difficult to reach areas.