Rust's Worst Enemy! Fluid Film - developed and perfected as an unparalleled rust and corrosion control system with non-drying properties for superior lubrication and is a long term penetrant. Once in place, it stays put forming a continuous, durable, always active, protective barrier. Will not harm painted or plastic surfaces. Will not harm oil resistant seals. Take care when applying near rubber. If overspray occurs on seals, wipe with a clean cloth as it may cause swelling. Repels and resists water washout. Excellent water proofing with “no drip” bonding properties. Fluid Film penetrates right through rust, stopping all metal deterioration on contact. Migrates to inaccessible areas by capillary action. Impregnates the pores of exposed metal, keeping moisture and oxygen out.