INDPRO RUSTGARD WD SERIES consist of three specially formulated water displacing rust preventives. Indpro Rust Gard WD Light is a light body petroleum solvent based penetrating fluid recommended for the protection of finely finished machine parts including those parts coated with water soluble cutting fluids. Indpro Rust Gard WD Medium is an oil-based rust preventive which will protect the internal surfaces of equipment such as engines, compressors, hydraulic & circulation systems plus splash lubricated parts. Indpro Rust Gard WD Heavy is a wax/grease type product which will provide a strong protective film and is particularly recommended for wire rope and steel sheet.