Nu Finish® Car Polish works great on fiberglass boats, airplanes, motorcycles, and recreational vehicles. Nu Finish® Car Polish can also be used on chrome, and it works great to protect against salt spray, bird droppings, tree sap, and road tar. Some customers report using Nu Finish® Car Polish on stainless steel, copper, kitchen cabinets, refrigerators, guitars, granite countertops, and much more.