--- product_id: 254296115 title: "Liquid Rubber Concrete Foundation and Basement Sealant - Indoor & Outdoor Waterproof Coating, Easy to Apply, Black, 5 Gallon" brand: "liquid rubber" price: "¥50623" currency: JPY in_stock: false url: https://www.desertcart.jp/products/254296115-liquid-rubber-concrete-foundation-and-basement-sealant-indoor-and-outdoor store_origin: JP region: Japan --- # Indoor & outdoor waterproof membrane 900% elongation for ultimate flexibility Easy brush, roller, or sprayer application Liquid Rubber Concrete Foundation and Basement Sealant - Indoor & Outdoor Waterproof Coating, Easy to Apply, Black, 5 Gallon **Brand:** liquid rubber **Price:** ¥50623 **Availability:** ❌ Out of Stock ## Summary > 💪 Seal it, stretch it, secure it — waterproofing redefined! ## Quick Answers - **What is this?** Liquid Rubber Concrete Foundation and Basement Sealant - Indoor & Outdoor Waterproof Coating, Easy to Apply, Black, 5 Gallon by liquid rubber - **How much does it cost?** ¥50623 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/254296115-liquid-rubber-concrete-foundation-and-basement-sealant-indoor-and-outdoor) ## Best For - liquid rubber enthusiasts ## Why This Product - Trusted liquid rubber brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Maximum Coverage Efficiency:** Covers up to 50 sq ft/gallon indoors and 20 sq ft/gallon outdoors with just a few coats. - • **Safe & Eco-Friendly Formula:** Zero VOCs, water-based, and easy cleanup for worry-free indoor use. - • **Professional-Grade Durability:** Creates a permanent, resilient membrane that outperforms traditional sealants. - • **Versatile Surface Compatibility:** Bonds seamlessly to concrete, wood, metal, masonry, and more for all your projects. - • **Unmatched Waterproof Flexibility:** Stretches 9x its length to seal cracks and prevent leaks like no other. ## Overview Liquid Rubber Foundation Sealant is a professional-grade, black polymer coating designed to create a flexible, permanent waterproof membrane for indoor and outdoor concrete surfaces. With 900% elongation, it prevents leaks and cracks across foundations, basements, and more. Easy to apply by brush, roller, or sprayer, it offers superior adhesion to multiple materials and covers up to 50 sq ft per gallon indoors. Its zero VOC, water-based formula ensures safe indoor use while delivering unmatched protection against moisture and water damage. ## Description Buy Liquid Rubber Concrete Foundation and Basement Sealant - Indoor & Outdoor Waterproof Coating, Easy to Apply, Black, 5 Gallon online on desertcart.ae at best prices. ✓ Fast and free shipping ✓ free returns ✓ cash on delivery available on eligible purchase. ## Features - SUPERIOR FLEXIBLE SEALANT: Liquid Rubber's foundation sealer creates a permanent waterproof membrane for basement waterproofing, foundation leak repair, shower liners, and planter boxes. This professional-grade sealer delivers unmatched protection with 900% elongation, preventing leaks and water damage more effectively than traditional sealants - COMPLETE BASEMENT WATERPROOFING SYSTEM: Surpassing basic concrete paint, concrete sealers, and standard waterproof agents, this waterproofing membrane is designed to seal and protect against active leaks and moisture, making it perfect for basement leak and foundation repair. Seamlessly compatible with self leveling concrete applications - VERSATILE CONCRETE CRACK FILLER: The professional-grade rubber coating and rubber waterproofing technology maintains flexibility in all temperatures, preventing future cracks and damage. This liquid rubber waterproof sealant provides superior adhesion to concrete, masonry, wood, metal, and foundation surfaces, making it an ideal choice for your DIY projects - MAXIMUM COVERAGE & PERFORMANCE: This high-build basement sealer goes on like waterproof paint - Interior basement surfaces: 50 sq ft/gallon (requires: 2-3 coats), Exterior concrete sealer outdoor surfaces: 20 sq ft/gallon (requires: 3-4 coats). Apply between 50°F-90°F. For complete protection, use the rubber sealant with Liquid Rubber Geo-Textile on joints and transitions - IMPORTANT USAGE GUIDELINES: Product goes on BROWN but dries Black; The water-based foundation sealer formula contains zero VOCs for safe indoor application. No mixing required! Apply by brush, roller, or professional sprayer as part of your basement waterproofing system. Not suitable for walking surfaces due to tackiness when cured - FOR A WATERTIGHT SYSTEM - Use rubber sealant with Liquid Rubber Geo-Textile on joints and transitions, fill small cracks with Liquid Rubber Sealant & Adhesive, and bridge joints, seams, vents, and protrusions where movement may occur. Scroll down for full application steps ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B071X7TYYM | | Brand | Liquid Rubber | | Brand Name | Liquid Rubber | | Color | Black | | Compatible Material | Concrete | | Customer Reviews | 4.5 out of 5 stars 1,860 Reviews | | Included Components | 5 Gallon | | Item Dimensions | 30.5 x 30.5 x 40.6 centimeters | | Item Form | Liquid | | Item dimensions L x W x H | 30.5 x 30.5 x 40.6 centimeters | | Item form | Liquid | | Manufacturer | L R | | Material | Polymer | | Material Type | Polymer | | Model | 20602 | | Number of Items | 1 | | Number of Packs | 1 | | Part Number | 20602 | | Style | Protective | | Style Name | Protective | | Surface Recommendation | Wall, Window | | UPC | 628421206025 | | Unit Count | 640 Fluid Ounces | | Water Resistance Level | Waterproof | | Water resistance level | Waterproof | ## Product Details - **Brand:** Liquid Rubber - **Item dimensions L x W x H:** 30.5 x 30.5 x 40.6 centimeters - **Material:** Polymer - **Style:** Protective - **Water resistance level:** Waterproof ## Images ![Liquid Rubber Concrete Foundation and Basement Sealant - Indoor & Outdoor Waterproof Coating, Easy to Apply, Black, 5 Gallon - Image 1](https://m.media-amazon.com/images/I/41RZCIrVrdL.jpg) ![Liquid Rubber Concrete Foundation and Basement Sealant - Indoor & Outdoor Waterproof Coating, Easy to Apply, Black, 5 Gallon - Image 2](https://m.media-amazon.com/images/I/51GG6R3WZcL.jpg) ![Liquid Rubber Concrete Foundation and Basement Sealant - Indoor & Outdoor Waterproof Coating, Easy to Apply, Black, 5 Gallon - Image 3](https://m.media-amazon.com/images/I/61Mye2zlfwL.jpg) ![Liquid Rubber Concrete Foundation and Basement Sealant - Indoor & Outdoor Waterproof Coating, Easy to Apply, Black, 5 Gallon - Image 4](https://m.media-amazon.com/images/I/51OqR2aNl2L.jpg) ![Liquid Rubber Concrete Foundation and Basement Sealant - Indoor & Outdoor Waterproof Coating, Easy to Apply, Black, 5 Gallon - Image 5](https://m.media-amazon.com/images/I/51EhzTd1syL.jpg) ## Questions & Answers **Q: will this work on a pond?** A: Yes, as a matter of fact I just redid my riverbed and the pond with concrete and then applied a couple of good coats of the liquid rubber using the last coat to adhere the rocks and it is beautiful and is holding the water perfectly' **Q: What's the lowest temperature to apply this product ?** A: I don't think the temp affects the function of this product as it does not have a " Do not allow to freeze " requirement. It doesn't really dry as it remains pliable like rubber. I would however heed the suppliers advice and try not to apply it below 5c/40f if possible. **Q: Approximately how many square feet will one 5 gallon bucket cover?** A: 100-125sq ft at a 60mil thickness. Bought 5, 5gal buckets to do 580sq ft of foundation and had about 1/2 gallon left over at an average of 60mil thickness. **Q: Question for anyone who sealed their basement from the inside. Has it held up against water leaks?** A: Yes so far... make sure you get every nook and cranny! I missed a tiny little hole and it leaked. ## Frequently Bought Together - Liquid Rubber Basement and Foundation Repair Sealant - Waterproof Concrete Sealer & Crack Filler - Flexible Coating for Indoor & Outdoor Use - Waterproofing Paint - Black, 5 Gallon - Liquid Rubber Geo-Textile - Fix Leaks - Repair and Restore - Easy to Use, 4 Inch x 160 Foot Roll - Liquid Rubber Caulk - Hybrid Adhesive and Protective Sealant, White, 4 Pack --- ## 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.jp/products/254296115-liquid-rubber-concrete-foundation-and-basement-sealant-indoor-and-outdoor](https://www.desertcart.jp/products/254296115-liquid-rubber-concrete-foundation-and-basement-sealant-indoor-and-outdoor) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-10-31*