Z-Wash and Wax Concentrate is soap with lots of extra polymer wax for a great shine. Z-Wash and Wax is biodegradable and environmentally friendly. Use Z-Wash and Wax on fiberglass, painted surfaces, all metals, wood, plastics, and anything else you clean with water. This amazing solution will not strip wax from boats, RVs, or cars. Z-Wash and Wax reduces spotting and streaking. Recommended for use on boats, RVs, and cars for a high-shine waxed finish. 32 oz. concentrate.