Armstead Trade Undercoat is a high opacity professional quality, solvent-based undercoat. Suitable for use on all types of interior and exterior wood, metal and suitably primed masonry surfaces. Recommended for use with Armstead Trade High Gloss where a durable high gloss system is required. Stir undercoat thoroughly before application, apply one coat of Armstead Trade undercoat, followed by one or two coats of 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 15m² per litre on most surfaces. This product should not be thinned. After use, remove as much paint as possible from brushes or rollers before cleaning with white spirit.