Dulux Trade Undercoat is a high VOC content finish that is applied by brush or roller and is suitable for interior and exterior use; only suitable for high gloss paint. This product is touch dry in 2-6 hours and recoatable after 6-16 hours.To get the best results, ensure surfaces to be painted are sound, clean and dry (new surfaces particularly must be fully dry) and free from all defective or poorly adhering material such as dirt, grease and wax. New or bare surfaces should be primed appropriately.