- New

Ronseal Thompson's Water Seal uses hydrophobic technology to provide invisible protection against water damage. Its penetrating formula soaks deep into dry, porous exterior surfaces, creating a breathable membrane. This allows moisture vapor to escape while preventing water penetration and damage. Unlike some waterproofers, Thompson's Water Seal's unique formulation continues to waterproof even after the initial beading disappears. Resistant to UV light, it offers long-lasting protection even in heavily damp conditions. When applied correctly, it provides years of effective water repellency and helps prevent damage from freezing and thawing.
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