Armstead Trade Contract Matt is a professional quality, high opacity, quick drying matt emulsion suitable for all normal interior wall and ceiling surfaces. It offers excellent coverage and is ideal for new plaster. This water-based paint dries in 1-2 hours and can be recoated in 2-4 hours. It requires 1 or 2 coats for optimal results. Clean up is easy with water. It has minimal VOC content.