Rust-Oleum Combicolor is an easy to use metal paint. Rust-Oleum specialise in Rust Protection! Unlike most other metal paints Combicolor contains rust inhibitors. It can be applied directly onto sound surfaces including existing painted surfaces. For extra protection use Rust-oleum Combi primer first. Combicolor is available in standard RAL colours and can also be tinted. Combicolor is white spirit based and can be applied by brush, roller or spray.