AQUAFIN® 1K is a one component mineral-based waterproof slurry. That can be used for both internal and external use, is water impermeable and sulphate resistant. It is used in waterproofing of new and existing buildings in ground covered areas against ground moisture, seepage water and water under pressure, water pressure from the inside, retrospective internal waterproofing against damp penetrating from the exterior as well as a horizontal membrane within and beneath walls as well as in building plinth areas.