Moisture Shield Engine Protectant is a nonflammable comination of special water displacement compounds, sorrosion inhibitors, solvents and non greasy lubricants. It is used to displace moisture from guns and fishing equipment. After spraying, a protective coating remains which repels moisture and prevents corrosin for prolonged periods of time. This products conforms to military specifications MIL-C-23411 for corrosion prevention. It is also an excellent rust buster.