Lowe Metal and Machinery Paint acts as a primer and topcoat in one. The formulation is similar to Lowe Rust Primer in that it may be painted straight onto rust. The paint reacts chemically with the rust to bind with the surface and prevent any further corrosion. The second coat acts as a further barrier to inhibit further rusting. It nay be used on old or new metal and requires little surface preparation other than the removal of any loose or flakey material. It gives an attractive satin finish.