Ronseal Thompsons Water Seal 1 Litre

Thompson's Water Seal provides invisible protection against water damage through hydrophobic technology. The penetrating formulation travels deep into exterior dry porous surfaces to form a breathable membrane, allowing moisture vapour to evaporate while preventing water penetration. It waterproofs by penetrating the surface, so protection remains even after initial beading fades. The product is ultraviolet resistant and continues to perform under heavy moisture conditions, offering long-lasting water repellency when used according to instructions and coverage guidelines. It also helps protect against damage caused by freezing and thawing. Suitable for brick, concrete and stone, it is supplied in a 1 L size with clear colour and a coverage of approximately 4 m² per litre. Drying time is around 2 hours.

The product is designed with an ergonomic approach and uses a micro silicone emulsion to stop water intrusion. It can be applied directly onto damp surfaces, enabling rapid protection within hours.

Features

• Hydrophobic technology delivers invisible protection against water damage
• Penetrates deep into exterior porous surfaces for breathability
• Waterproofing remains after initial bead is gone
• Ultraviolet resistant for lasting performance
• Helps prevent freeze-thaw damage
• Use on brick, concrete and stone

Usage

1. Scrub the surface with a stiff bristle brush.
2. Fill any cracks and perform pointing repairs if needed.
3. Shake the tin well.
4. Apply Water Seal directly onto damp surfaces to provide long lasting waterproof protection within hours.