For Exterior Use Only - Thompson's Water Seal Utilises Hydrophobic Technology To Deliver Invisible Protection Against Water Damage. - The Deep Penetrating Formulation Travels Deep Into Exterior Dry Porous Surfaces To Form A Breathable Membrane That Allows Moisture Vapour Inside The Substrate To Evaporate Whilst Protecting Against Water Penetration And Damage. - Thompson's Water Seal Has A Unique Formulation Which, Unlike Some Waterproofers, Penetrates The Surface Therefore Waterproofing Even After The Initial Beading Is Gone. - It Will Not Be Destroyed By Ultraviolet Light And Is Long Lasting Even Under Heavy Moisture Conditions. - Assuming Application Instructions And Coverage Guidelines Are Adhered To It Provides Effective Water Repellency For Years. - Suitable For Use On Brick, Concrete and stone -NOT SUITABLE FOR USE ON WOOD
