BIG RIG BRITE is formulated with fast penetrating surfactants to safely clean polished aluminum and painted surfaces for over the road tractors, trailers, and other types of commercial vehicles. This product will remove magnetic road film from trailers without brushing, leaving the surface with a near wax shine. Do dilute, as one-drum makes two ready-to-use. Use as directed; hot pressure washers apply to the surface at the rate of 1:50 cleaner to water. For use in cold pressure washers and cold water drive through truck wash systems, use at the rate of 1:25. 1 drum makes 2.