Perma-White® is guaranteed to prevent the growth of mould and mildew on the paint film for at least 5 years. The interior paint protects itself against the damaging effects of unsightly mould and mildew as it brightens ceilings, walls, trim and other related paintable interior surfaces. Perma-White® bonds to existing solvent-based or glossy paints – even Formica® and ceramic tile without sanding. It also seals flat paint, new drywall, cement block and concrete. It is ideally suited for any area where conditions of persistent high humidity, frequent temperature changes and poor air circulation may promote mould and mildew growth and cause deterioration of the paint film. Perma-White® can be applied via airless sprayer, brush, conventional spray, pad or roller. Application information: Coverage: 10m² per litre. Touch dry: 30 minutes. Hard dry: 7-10 days. Recoatable: 2 hours.Zinsser Perma-White® Interior Matt Paint is recommended for application in high-humidity areas where a durable, low sheen finish is desired such as finished basements and kitchens. ZINPWES25L comes in the following: Container type: Tin. Volume: 2.5 litre.