A resilient, heavy duty, rust preventive coating for metal parts and surfaces. The flexible, transparent film provides ling-term protection against rust and corrosion ever under severe conditions. It can be used in a wide variety of applications, including automotive rust proofing. Also, effective as a battery terminal protector to seal out moisture, resist acid and alkali and prevent corrosion of battery posts, housings, cables and supports. 20 oz. can 15 oz. net.