HM Hammerite 1litre Black WaxOyl Rust Proof Prevention Covering Schutz Air Can+GunHammerite WaxOyl 1x 1 litre schutz application can in Black Thick waxy fluid saturated with a very powerful rust killer Forms a flexible weatherproof skin that does not crack, dry out or wash off If skin is scratched it will creep back and reseal itself Wide range of uses including machinery, tanks, pipe work, external electrical equipment and battery contacts. Protects metal against corrosion