Heavy Grade Hydroseal is a thick, inert fibre reinforced solvent cut bituminous mastic. It is easy to use and adheres to all dry, clean surfaces. Heavy Grade Hydroseal is alkali and acid resistant, and when dry it will not contaminate drinking water. Specially designed to be trowel applied to any surface. It forms a tough skin quickly then dries slowly beneath the surface.
Heavy Grade Hydroseal is specially formulated for waterproofing and sealing cracks, laps or joints and fixings on new or old structures of metal, concrete and timber.
It is ideally suited for: