POR-15 Rust Preventive Coating is a high performance coating designed for application directly on rusted or seasoned metal surfaces and will stop rust permanently. POR-15 Rust Preventive Coating is non-porous and seals and protects many surfaces from water, chemicals, salt, and other corrosive contaminants and is able to be painted over rust. POR-15 Rust Preventive Coating is an effective anti-corrosive and rust preventive coating that offers superior chemical resistance due to its dense, cross-linked molecular composition and non-porous attributes. Applications: Automotive: chassis, doors, floors, trunk areas, suspension, engine, and fuel tanks Industrial: heavy equipment, truck components, trailors, fuel storage, rebar, steel forms, concrete, storm gates, transformers, waste water management Marine: decks, bilges, hulls, steam pipes, chain lockers, masts Home: HVAC, pipes, beams, home appliances Warning: This product can expose you to chemicals which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm.