Dulux Trade Undercoat is a solvent-based undercoat recommended for use with Dulux Trade High Gloss. Provides excellent opacity and its high sheen level contributes to exceptional gloss retention. Suitable for use on correctly prepared and primed interior and exterior wood and metal surfaces. Stir undercoat thoroughly before application, apply one coat of Dulux trade undercoat, followed by one or two coats of Dulux Trade High Gloss. Allow a minimum of 6 hours for the undercoat to dry before applying the gloss finish. Where a second coat is required, allow a minimum of 16 hours between coats. Coverage, up to 17m² per litre on most surfaces. Thinning is not generally required. After use, remove as much paint as possible from brushes or rollers before cleaning with white spirit.