The ronseal anti mould paint protects walls and ceilings from mould growth for up to 6 years the paints advanced encapsulated biocide technology is specifically designed to actively prevent all common types of mould including black mould from building up on the paint surface in areas of high condensation and humidity such as kitchens and bathrooms specification areas of use interior walls coverage 13m2 covered per litre number of coats 2drying time 2 hours