Gorilla All Conditions Sealant is the all-purpose, multi-surface sealant that's perfect for both indoor and outdoor projects. It repels and prevents the growth of mould and mildew and can be exposed to water just 30 minutes after application. Available in both white and clear, Gorilla All Conditions Sealants fast set formula will hold up through the toughest of conditions. How can we be so sure? Simple. Its waterproof, shrink and crack proof and comes with a lifetime!