Flex Paste Waterproof Paintable Putty Spackle Sealant Fill Gaps Cracks Holes - Block Out Water and Air - UV Resistant - Walls Drywall EPDM Concrete Roof RV Repairs Clear Half-Quart

Now in a NEW Stay Fresh Container! FLEX PASTE is a super thick rubberized paste that you can spread shape form and seal virtually anything. 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 color. Can be applied on dry or wet surfaces even underwater.