Application: Brush only. For Health and Safety reason related to all solvent-based paints, spray application is not recommended. STIR THOROUGHLY BEFORE USE. Product is ready to use. Do not thin. Apply up to 3 coats of Dulux Trade Polyurethane Varnish. Dulux Trade Polyurethane Varnish is not suitable for use on other surfaces such as masonry. On surfaces subject to heavy wear such as flooring, the gloss finish is recommended.