DAP Kwik Seal Ultra is a high performance siliconized kitchen and bath sealant that repels water, stains and dirt. It has a lifetime mould and mildew guarantee so the sealant stays looking fresh and new. Kwik Seal Ultra is 100% waterproof and crack proof. It can be exposed to water in as little as 4 hours after application without washing out. It is safe for granite and marble, cleans up easily with water and is low in odour. Interior use.