Dulux Bathroom+ Soft Sheen Rock Salt paint 2.5 litres is an exceptionally tough moisture and steam resistant paint. Independent laboratory testing has shown that the MouldTec formulation protects the paint against mould for five years, keeping your bathroom looking great for longer. Coverage is 13 m²/L. Leave 6 hours to dry between coats, and a minimum of 24 hours for the paint to fully dry before subjecting the room to condensation. Chromalock is a technology exclusive to Dulux that creates an invisible protective barrier around the colour on your walls, protecting from the wear and tear of everyday life, bringing you colour that lasts.