It provides a thin, non-greasy coating that prevents rust and lubricates all parts of fishing reels, locks, latches, and hinges. Clenzoil also nourishes, preserves, and protects wood accents on boats and rods. It will not harm synthetic surfaces, foam or cork handles, or any other part of the rod or reel. Clenzoil is also great for boat motors, downriggers, winches, pulleys, trailers, and anything that may rust due to exposure to everyday environmental and weather conditions. Not recommended for painted surfaces.