The 1 litre size of Thompson's Water Seal is perfectly suited for smaller exterior waterproofing projects, repairs, or trial applications. This compact format provides professional-grade protection whilst being easy to handle and store, making it ideal for domestic users and trade professionals tackling modest-sized areas. Utilising hydrophobic technology, this invisible waterproofer penetrates deep into dry porous surfaces to form a breathable membrane.
The formulation allows moisture vapour inside the substrate to evaporate whilst protecting against water penetration and damage. Unlike some waterproofers that only coat the surface, Thompson's Water Seal continues waterproofing even after initial beading is gone. The UV-resistant formula is long-lasting under heavy moisture conditions and helps prevent damage caused by freezing and thawing.
When application instructions and coverage guidelines are followed, it provides effective water repellency for years. Features and Benefits: • 1 litre size ideal for smaller projects and repairs • Deep-penetrating hydrophobic technology • Breathable, invisible protection • UV-resistant and long-lasting • Suitable for brick, concrete and stone • Exterior use only Specifications: Seal Type: Water Seal Size (L): 1