20kg Hyseal 501

Hyseal 501, which is a crystalline chemical waterproofing admixture for concrete. Here's information for shopping: Product: Hyseal 501, a concrete waterproofing solution. Purpose: It's used to waterproof concrete by forming insoluble crystals within the concrete's capillaries, blocking water passage. Applications: Suitable for concrete water tanks, foundations, basements, swimming pools, and concrete pipes.