GWR440 is designed to dissolve and remove surface contaminants commonly found on painted surface such as grease, wax, tar, adhesive residue, and tree sap. GWR440 is a fast acting product to dissolve and loosen contaminants and enable them to be wiped and removed from the surface to be painted. Use before any bodywork or painting operation to assure a clean quality surface. Use with clean lint free wiping cloths, use a separate wet cloth and a separate removal cloth. Change both cloths often during this cleaning procedure.