The Thompsons One Coat Water Seal Ultra - 5 Litre uses hydrophobic technology to deliver invisible protection against water damage. The penetrating formula travels deep into exterior dry porous surfaces to form a breathable membrane that allows moisture vapour inside the substrate to evaporate, while protecting against water penetration and damage. Thompson's Water Seal has a unique formula which unlike some waterproofers, penetrates the surface therefore waterproofing even after the initial beading is gone. It is perfect to protect brick, stones and concrete against water damage. It will not be destroyed by ultraviolet light and is long lasting even under heavy moisture conditions.
Long lasting protection against water damage
For brick, stone & concrete
Prevents freeze & thaw damage
Can be applied to damp surfaces