Ronseal Thompsons Water Seal 2.5 Litre

Thompson's Water Seal is a high-performance waterproofing solution that uses hydrophobic technology to provide invisible protection against water damage. It penetrates deep into dry porous surfaces, forming a breathable membrane that allows moisture vapor to escape while preventing water penetration. The product is designed to withstand heavy moisture conditions and remains effective after the initial beading disappears, with long-lasting protection and a clear finish. It comes in a 2.5 litre container with a coverage of approximately 4 m² per litre and is compatible with brick, concrete, stone, and wood.

Features

• Hydrophobic technology for invisible protection
• Penetrates deep into porous surfaces, remains waterproof after beading
• Dries to a clear finish and can be applied to damp surfaces
• Suitable for brick, concrete, stone, and wood; 2.5 L size
• Coverage: 4 m² per litre; stops freeze-thaw

Application and compatibility

Preparation: scrub the surface with a stiff bristle brush and fill cracks or perform pointing repairs as needed. Application: shake the tin well and apply using a brush or roller. For walls, work in 1 m sections from the bottom upwards, ensuring each area is covered before moving on. The product can be applied directly onto damp surfaces and should form a breathable, protective membrane that prevents water penetration while allowing moisture vapor to escape. It is suitable for stone, concrete and brick materials.