Gorilla All-Conditions Sealant is the all purpose, all surface sealant that is perfect for both indoor and outdoor projects. It repels & prevents the growth of mould and mildew and can be exposed to water in just 30 minutes after application! Our fast set formula will hold-up through the toughest of conditions ÔÇô as its durable, waterproof, shrink & crack proof and has a lifetime guarantee.