johnstone's covaplus vinyl emulsion paint provides a durable matt finish which offers great resistance to yellowing and fading. it also offers a low impact to the environment with low voc's. produces a wipeable finish. more than 15,000 colours‚† available via the johnstone‚Äôs 32k tinting system. pack sizes available 1 litre, 2.5 litre, 5 litre and 10 litre. substrate plaster, wallboards, concrete, cement rendering, brickwork, blockwork. coverage 12-14 square mtrs per lt. ‚†drying time : recoat 2-4 hrs.application : brush, roller or spray. clean brushes in water.