Douglas Oxide Red 5L is a high-quality paint suitable for various surfaces. For best results, ensure the surface is clean and stable before application. Unstable surfaces, such as flaky galvanize, require thorough cleaning and priming before applying the oxide. We recommend using our anti-corrosive light grey primer as a first coat. For galvanize sheeting, you'll need approximately 1 litre of paint for every 5 square meters to cover. A second coat is recommended, using less paint than the first coat. When applying with a sprayer, white spirits is the best thinning agent. If using a brush or roller, it's best to apply the paint undiluted.