- New

Thompson's Water Seal 5 litre from Ronseal utilizes hydrophobic technology to provide invisible protection against water damage. Its penetrating formula deeply treats exterior dry porous surfaces, creating a breathable membrane. This allows trapped moisture to evaporate while preventing water penetration and the damage it causes. 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 harsh, wet conditions. With proper application, it provides effective water repellency for years, helping prevent damage from freezing and thawing.
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