3M PERFECT IT BOAT WASH 946MLOur 3M Perfect It Boat Wash is an important first step in achieving a truly professional gelcoat finish. This high suds formula works without stripping wax, removing grime, algae, dirt and other common marine contaminants to create a clean, clear surface for refinishing. In fact, it works on every boat surface from bow to stern. And its concentrated formula requires only 1 oz. per gallon. The Ideal Start for an Excellent Gelcoat Finish For a truly