Product information ROTWEISS active foam with shine wax 1000mlAs ready-to-use solution or concentrate. For quick, gentle pre-cleaning of all types of vehicles. After prewashing with a high-pressure cleaner or jet of water, spray active foam onto the wet surfaces and froth up with a wet sponge. Allow foam to briefly take effect and rinse off with clear water. Do not allow product to dry on vehicle’s body. The active foam is also available as a concentrate for refilling.