A diluted asphaltic based solvent that provides long term rust prevention. This product leaves a dark thin coat of asphaltic material on parts, and dries to a hard finish as the solvent evaporates. Normally, drying time of 2 to 6 hours is adequate. Parts may be dipped or sprayed, and stacked wet on pallets or other suitable packing material if used in production. Cleanup and removal can be accomplished with mineral spirits or kerosene. DARK COAT 1890 gives up to two years outdoor shed storage, longer for indoors. DARK COAT is well suited for the replacement parts market where long term protection is required.