The Douglas Oxide Mid Grey 5L is a high-quality paint suitable for galvanize surfaces. For best results, ensure the surface is thoroughly cleaned and primed before application. We recommend applying our anti-corrosive light grey primer as a first coat. All other surfaces should be clean before application. You will need approximately 1 litre of paint for every 5 square meters of galvanize sheeting that you have to cover. Applying a second coat is recommended, as you will use less paint on the second coat. White spirits is the best thinning agent for this product if you are applying with a sprayer. If you are using a brush or roller, we recommend not thinning out the paint.