Ronseal Thompson's Water Seal 1 Litre, Exterior Waterproofing
Ronseal's water seal (1L) provides invisible UV-resistant protection for brick, concrete & stone surfaces. Long-lasting waterproofing.
The Ronseal Thompson's Water Seal 1 Litre is an advanced waterproofing solution designed to protect exterior porous surfaces. Utilising hydrophobic technology, it forms an invisible barrier against water damage while maintaining breathability.
Its deep-penetrating formulation creates a breathable membrane, allowing moisture vapour to escape while repelling water, ensuring surfaces stay protected and dry. Unlike traditional waterproofers, Thompson's Water Seal continues to protect even after the initial water beading effect has worn off.
Key Benefits:
- UV-resistant - Not destroyed by sunlight, providing long-lasting protection even in harsh conditions
- Breathable - Allows moisture vapour to evaporate from the substrate
- Durable - Designed to last for years under heavy moisture exposure
- Prevents freeze-thaw damage - Reduces cracking caused by freezing and thawing cycles
- Invisible protection - Leaves no residue, maintaining the natural appearance of surfaces
Ideal for porous exterior materials such as brick, concrete, and stone. Note: For exterior use only. Follow application instructions for best results.
- Size: 1 Litre
- Technology: Hydrophobic formula
- Finish: Invisible protection
- UV-resistant: Yes
- Surface Type: Porous
- Coverage: Follow manufacturer guidelines
- Suitable for: Brick, concrete, stone
- Application: Exterior only
Free standard delivery on UK mainland orders. Express delivery options and international shipping available at checkout.
We offer a 30-day money-back guarantee on most products. For faulty items, contact us within 14 days for a replacement or refund.
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