Goldstar Hi Build Damp Sealer is the quick and effective way to Paint over damp interior and exterior walls, which forms protective barrier coat between paint film substrate to avoid saponification. It can be used on new plaster, concretes, asbestos or any other wall. Goldstar Hi Build Damp Sealer can offer a reasonable degree of moisture resistance. Damp Sealer offers an effective barrier over a surface of alkalinity.