Armstead Trade Undercoat 2.5L White Armstead Trade Undercoat is a 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. Due to geographical locations we are unable to deliver to: Isle of Wight, Isle of Man and Ireland.