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 co