Flex Seal Flex Paste, Super Thick Rubber Paste, Caulk Sealant Leak Protector, Black or White, 9-FL OZ./270 mL

This Flex Seal Flex Paste is a super thick rubberized paste that you can spread, shape, form and seal virtually everything. It starts out as a thick paste and dries to a strong, flexible, waterproof barrier that can be applied to all types of surfaces to seal out air, water and moisture. It clings to the surface and instantly fills large gaps, cracks and holes. It won’t shrink or wash away and can be painted any colour. It can be applied on dry or wet surfaces, even underwater.