--- product_id: 733811004 title: "Polyurethane Waterproof Coating,35.2OZ,Eco-Friendly Waterproof Sealant,Polyurethane Coating for Roofs,Walls,Garden,Gutter,Concrete Cracks Holes Leak Repair (1000g,Black)" brand: "athno" price: "£53.21" currency: GBP in_stock: true reviews_count: 8 category: "Athno" url: https://www.desertcart.co.uk/products/733811004-polyurethane-waterproof-coating-35-2oz-eco-friendly-waterproof-sealant-polyurethane store_origin: GB region: United Kingdom --- # 100% waterproof sealant resists -10°C to 50°C temps covers 14 sq ft per 1000g Polyurethane Waterproof Coating,35.2OZ,Eco-Friendly Waterproof Sealant,Polyurethane Coating for Roofs,Walls,Garden,Gutter,Concrete Cracks Holes Leak Repair (1000g,Black) **Brand:** athno **Price:** £53.21 **Availability:** ✅ In Stock ## Summary > 💧 Seal it, save it, flaunt it — waterproof your world with confidence! ## Quick Answers - **What is this?** Polyurethane Waterproof Coating,35.2OZ,Eco-Friendly Waterproof Sealant,Polyurethane Coating for Roofs,Walls,Garden,Gutter,Concrete Cracks Holes Leak Repair (1000g,Black) by athno - **How much does it cost?** £53.21 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/733811004-polyurethane-waterproof-coating-35-2oz-eco-friendly-waterproof-sealant-polyurethane) ## Best For - athno enthusiasts ## Why This Product - Trusted athno brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Smart Weather Timing:** Optimized for application above 50°F/10°C, ensuring perfect curing and maximum protection. - • **Ultimate Leak Defense:** Seals cracks, holes, and leaks on roofs, walls, gutters, and more with industrial-grade polyurethane. - • **Eco-Friendly & Durable:** Water-based formula that’s tough on water but gentle on the planet, lasting through heat and cold. - • **Effortless Application:** Smooth liquid form spreads easily in 3-5 thin layers, drying fast to create a resilient waterproof barrier. - • **Wide Surface Compatibility:** Adheres flawlessly to concrete, metal, wood, plastic, and even glass for versatile home and outdoor repairs. ## Overview The ATHNO Polyurethane Waterproof Coating is a 35.2oz eco-friendly, water-based sealant designed to protect and repair leaks on a variety of surfaces including roofs, walls, gutters, and concrete. It covers approximately 14 sq ft per 1000g, forms a durable waterproof film resistant to temperature extremes, and is ideal for DIY and professional use in dry conditions above 10°C. ## Description Product description [Product Name]: High-performance polyurethane waterproof coating High-performance polyurethane waterproof coatings have become the preferred material in the field of modern building waterproofing with their excellent performance and wide application fields, providing reliable and lasting waterproof solutions for all types of buildings. [Product Introduction] High-performance polyurethane waterproof coating is a new type of waterproof material developed using advanced synthetic technology. It is made of polyurethane resin as the base material, supplemented by selected additives, fillers and functional additives, and refined through a special process. The waterproof coating has excellent waterproof, anti-seepage, moisture-proof properties, as well as good adhesion, elongation and weather resistance. It is widely used in various parts of buildings that require waterproofing, such as roofs, basements, bathrooms, kitchens, pools, tunnels, bridges, etc., to provide long-term and effective waterproof protection for engineering structures. ‌[Product Features] Excellent waterproof performance‌: Form a seamless and dense waterproof layer to effectively block water penetration, and maintain excellent waterproof effect even under extreme weather conditions. ‌High-strength adhesion‌: It has good adhesion to various substrates (such as concrete, masonry, wood, metal, etc.), ensuring that the coating is tightly bonded to the substrate and is not easy to fall off. ‌Excellent elongation‌: It has good elasticity and can adapt to the tiny cracks in the substrate caused by temperature changes or structural stress, maintaining the integrity of the waterproof layer. ‌Weather and aging resistance‌: Specially formulated, it has excellent UV resistance and aging resistance, is not easy to fade or crack after long-term use, and extends its service life. ‌Safe‌: Low VOC (volatile organic compound) emissions, in line with environmental standards, and has little impact on the environment and human health during construction. ‌Convenient construction‌: Single-component or two-component design, easy to mix and use, can be applied by brushing, rolling, spraying and other construction methods to quickly form a waterproof layer. [Scope of application] Roof and wall waterproofing of residential and commercial buildings. Waterproofing and moisture-proofing of underground projects such as basements, garages, and tunnels. Waterproofing treatment of wet areas such as kitchens, toilets, swimming pools, and pools. Waterproof protection of transportation infrastructure such as bridges, roads, and culverts. Waterproofing of internal and external walls of buildings such as industrial plants and warehouses. [Precautions] Please read the product manual in detail before construction to understand the specific construction conditions and restrictions. Avoid construction in rainy days or high humidity environments to avoid affecting the curing effect of the coating. Store in a cool and dry place, away from fire, and keep the packaging intact. Review: Gracias - Gracias Review: Tar - Useful ## Features - Efficient Leak Prevention：Polyurethane waterproof coating protects surfaces and repairs leaks. Use on flat roofs, sloped roofs, external wall cracks, foundations, sheds, basements, metal, wood, concrete, gutters, skylights, windows, RVs, DIY projects, external walls, pipelines, seals pipeline leaks, walls, corners, toilet leaks, substrate joints, car roofs, pools, baths, and more. (Note: Not suitable for continuous soaking or use below the waterline.) - High Quality: The polyurethane waterproof sealants/coatings are water-based. The roof sealant provides excellent waterproofing, is long-lasting, and resists both low temperatures and heat. Using the leak repair waterproof coatings forms a durable protective film, helping to save time, money, and energy. - Coverage: Each 1000g/32 oz of polyurethane sealant covers about 14 sq ft (1.3 sq m). Apply in 3-5 thin layers. This waterproof coating easily adheres to surfaces, repairing holes, cracks, crevices, tears, and leaks, while sealing any cracked areas. The roof sealant also creates a protective waterproof layer in the treated area. - Waterproof Agent Tip:Prolonged rainy and humid conditions, along with cooler temperatures, can extend the curing time for the waterproof adhesive. For best results, select clear, dry weather and maintain a dry environment before and after application. Ideal operating temperature: 10˚C/50˚F or higher (including overnight). ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0DNFJCPDY | | Best Sellers Rank | #253,104 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #268 in Household Polyurethanes, Shellac & Varnish | | Brand | ATHNO | | Brand Name | ATHNO | | Color | Black | | Compatible Material | Ceramic, Concrete, Engineered Wood, Fiberglass, Glass, Leather, Metal, Plastic, Porcelain, Rubber, Terracotta, Vinyl, Wood | | Customer Reviews | 3.9 out of 5 stars 62 Reviews | | Item Form | Liquid | | Manufacturer | ATHNO | | Material | Polyurethane | | Material Type | Polyurethane | | Part Number | 4223254801407 | | Style | Industrial | | Style Name | Industrial | | Unit Count | 1.0 Count | | Water Resistance Level | Waterproof | ## Product Details - **Brand:** ATHNO - **Item Form:** Liquid - **Material:** Polyurethane - **Style:** Industrial - **Water Resistance Level:** Waterproof ## Images ![Polyurethane Waterproof Coating,35.2OZ,Eco-Friendly Waterproof Sealant,Polyurethane Coating for Roofs,Walls,Garden,Gutter,Concrete Cracks Holes Leak Repair (1000g,Black) - Image 1](https://m.media-amazon.com/images/I/61RySeljQ9L.jpg) ![Polyurethane Waterproof Coating,35.2OZ,Eco-Friendly Waterproof Sealant,Polyurethane Coating for Roofs,Walls,Garden,Gutter,Concrete Cracks Holes Leak Repair (1000g,Black) - Image 2](https://m.media-amazon.com/images/I/71wjTzJvIpL.jpg) ![Polyurethane Waterproof Coating,35.2OZ,Eco-Friendly Waterproof Sealant,Polyurethane Coating for Roofs,Walls,Garden,Gutter,Concrete Cracks Holes Leak Repair (1000g,Black) - Image 3](https://m.media-amazon.com/images/I/61Y8uEX+zyL.jpg) ![Polyurethane Waterproof Coating,35.2OZ,Eco-Friendly Waterproof Sealant,Polyurethane Coating for Roofs,Walls,Garden,Gutter,Concrete Cracks Holes Leak Repair (1000g,Black) - Image 4](https://m.media-amazon.com/images/I/61xECpZ7tQL.jpg) ![Polyurethane Waterproof Coating,35.2OZ,Eco-Friendly Waterproof Sealant,Polyurethane Coating for Roofs,Walls,Garden,Gutter,Concrete Cracks Holes Leak Repair (1000g,Black) - Image 5](https://m.media-amazon.com/images/I/81CyiDdxeYL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Gracias *by A***O on April 6, 2026* Gracias ### ⭐⭐⭐⭐⭐ Tar *by K***L on March 9, 2026* Useful ### ⭐ It’s not good *by Y***R on June 3, 2026* It was halfway empty and is not working. I’m sorry to say that, but it’s not good. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/733811004-polyurethane-waterproof-coating-35-2oz-eco-friendly-waterproof-sealant-polyurethane](https://www.desertcart.co.uk/products/733811004-polyurethane-waterproof-coating-35-2oz-eco-friendly-waterproof-sealant-polyurethane) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-06-12*