The Ronseal Anti Mould Paint protects walls and ceilings from mould growth for up to 6 Years. The paint’s 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: 2.Drying time: 2 hours.