Apply thinly with a SONAX Sponge Applicator or SONAX Polishing Cloth. Depending on the application and material, polish with a little pressure until the desired gloss level is achieved. For an even result, always treat the entire surface. When treating brushed surfaces, always work in the direction of the brushed structure. Wipe off black residues with a microfibre cloth. Do not use on coated and painted metal parts (e. g. alloy rims), rough metal surfaces and chrome-plated plastic parts.