DIY Metal Paint Tin Hammerite Direct To Rust Metal Paint Smooth Black - Jim's DIY 1 Litre Hammerite Smooth Black Easy to use, apply it on ferrous and non-ferrous metals. Hammerite Direct to Rust Metal Paint in smooth black can be applied directly onto rusty metal for a smooth, gloss finish. This durable, corrosion resistant decorative coating will retain its sheen for up to 8 years Comes in smooth black in a 1 litre tin. Hammerite Paint Direct to Rust Exterior Black Metal Paint, Satin Finish. Corrosion Resistant Gives a smooth finish Long lasting corrosion protection Hammerite Metal Paints provide a stable, smooth surface ready for painting and can penetrate and stabilise existing rust. Shop Hammerite for the best paints online Painting your car can be a long and laborious task at the best of times. Hammerite Metal Paint can be applied directly onto rusty metal thanks to a formula that has been developed to be a primer, undercoat and topcoat in one. Primer, undercoats and topcoats are needed and therefore you will have to purchase three different tins of paint to get the job done, until now.