Gel-Gloss GG-16 Fiberglass Cleaner/Polish Bottle - 16 oz. TR Industries Gel-Gloss Fiberglass Cleaner/Polish 16-ounce Bottle Beautifies anything made of fiberglass or marble Combines the most powerful cleaning agents with the most effective Carnauba waxes to produce the highest surface luster possible Removes water spots; cleans, shines and seals fiberglass and acrylic surfaces Prevents dirty water build-up Long lasting finish requires little care Excellent for the inside and outside of RVs, as well as tubs, showers, spas, basins and stainless steel surfaces Recommended by fiberglass manufacturers (Not for sale in Quebec).