Renovo Vinyl Cleaner (500ml) deep-cleans heavily soiled vinyl and vinyl coated fabric tops, boat covers, motorcycle covers and RV covers. It will safely and effectively remove imbedded grime, tree sap and bird droppings. Brush or sponge on a thin coat, allow it to clean for a few minutes, gently scrub with a sponge, soft cloth or soft brush to loosen stubborn dirt, rinse thoroughly with water to remove all traces of cleaner and then dry. Heavily soiled or surfaces with deep graining may require the cleaner to work for up to an hour, before rinsing, and gentle brushing with a soft bristle brush to remove the imbedded dirt. Immediately remove any drips on paint, glass or trim with a wet cloth. Once the clean top/cover has completely dried, follow immediately with an application of Renovo Vinyl Ultra Proofer. Always test a small area prior to use to insure colorfastness of the material.