Product overview perma white exterior paint is guaranteed to prevent the growth of mould and mildew for 5 years and will resist fading cracking peeling and blistering for a guaranteed 15 years with outstanding adhesion and a washable surface this product is self priming fast drying and ready to recoat in 2 hours it is formulated to withstand extreme humid conditions and mildew prone areas ideal for residential and commercial applications perma white exterior produces a tough durable w