Meguiars Marine/RV M67 One Step Compound is an aggressive, yet safe cutting compound with polish that cleans and restores gloss to gel coat surfaces in one step. With the use of this formula you can reduce the steps needed treating neglected surfaces by compounding and polishing at the same time. This advanced compound works quickly to remove heavy oxidation, scratches, stains, and tough water spots on all fiberglass and painted gel coat marine or RV surfaces. Obtain excellent results by hand or by machine restoring neglected surfaces to bring back that rich, high gloss shine that you had when the boat or RV was band new.