Depending on the degree of soiling, dilute the pre-cleaner 1:10 with water, apply pure for heavy soiling; apply to the surface using the Pressure Sprayer acid or washing sponge and leave to work for a maximum of 5 minutes. If necessary, rework with the Interior Scrubber. Then rinse thoroughly with water and a sponge. After thorough cleaning, polish and seal the surface to protect it from rapid resoiling. When cleaning, avoid sensitive surfaces such as galvanized steel or aluminium surfaces.