--- product_id: 575146060 title: "BEEST Liquid Rubber Waterproof Sealant Black, 1 Gallon Covers up to 25-35 Sq ft| Roof Sealant Waterproof Coating for Indoor & Outdoor Leak Repair| Easy to Apply Waterproofing Foundation Sealer" brand: "beest" price: "¥31787" currency: JPY in_stock: true reviews_count: 8 category: "Beest" url: https://www.desertcart.jp/products/575146060-beest-liquid-rubber-waterproof-sealant-black-1-gallon-covers-up store_origin: JP region: Japan --- # UV & weather resistant Easy brush/roller application 30-80 mil durable membrane BEEST Liquid Rubber Waterproof Sealant Black, 1 Gallon Covers up to 25-35 Sq ft| Roof Sealant Waterproof Coating for Indoor & Outdoor Leak Repair| Easy to Apply Waterproofing Foundation Sealer **Brand:** beest **Price:** ¥31787 **Availability:** ✅ In Stock ## Summary > 🛠️ Seal the deal with BEEST — waterproof confidence that lasts! ## Quick Answers - **What is this?** BEEST Liquid Rubber Waterproof Sealant Black, 1 Gallon Covers up to 25-35 Sq ft| Roof Sealant Waterproof Coating for Indoor & Outdoor Leak Repair| Easy to Apply Waterproofing Foundation Sealer by beest - **How much does it cost?** ¥31787 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/575146060-beest-liquid-rubber-waterproof-sealant-black-1-gallon-covers-up) ## Best For - beest enthusiasts ## Why This Product - Trusted beest brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **DIY-Friendly Application:** Smooth, brush or roller on liquid rubber that dries flexible and tough. - • **Extreme Weather Resilience:** Formulated with polymers for UV stability and heavy-duty durability in harsh conditions. - • **Made in the USA with Support:** Backed by a family-owned brand and 100% satisfaction guarantee. - • **Contractor-Grade Waterproofing:** Creates an impenetrable, permanent moisture barrier for ultimate protection. - • **Versatile Surface Compatibility:** Seals roofs, gutters, wood, metal, concrete, and more—indoors or outdoors. ## Overview BEEST Liquid Rubber Waterproof Sealant is a professional-grade, polymer-infused asphalt emulsion that forms a tough, flexible, and UV-stable waterproof membrane. One gallon covers 25-35 sq ft depending on surface type, making it ideal for indoor and outdoor leak repairs on roofs, gutters, basements, and more. Easy to apply with brush or roller, it withstands extreme weather and vibration, backed by a USA family-owned company with dedicated customer support. ## Description BEEST Liquid Rubber Waterproof Sealant Black, 1 Gallon Covers up to 25-35 Sq ft| Roof Sealant Waterproof Coating for Indoor & Outdoor Leak Repair| Easy to Apply Waterproofing Foundation Sealer: desertcart.com: Industrial & Scientific Review: Really helped with my leaky garage. - 3 sides of my garage are built 3 feet underground. Seller didn’t disclose it floods. This stuff is great. It really helped with two of the leaking walls. Review: No more leaks. - Seal shed from rain. ## Features - CONTRACTOR-GRADE WATERPROOF COATING: BEEST Waterproof Sealant creates an impenetrable barrier against water, providing ultimate damp-proofing and waterproofing for your surfaces. Its permanent bond and vapor barrier properties ensure your protection against moisture, making it the perfect waterproof coating for almost any job. - Coverage Guidelines: For vertical surfaces, 1 gallon covers approximately 35 sq ft (2.8 sq m) with 3-4 heavy coats to achieve a 30 mil (0.76 mm) membrane. For flat or ponding surfaces, 1 gallon covers approximately 25 sq ft (1.4 sq m) with 4-5 heavy coats to achieve a 60-80 mil (1.5-2 mm) membrane. - BUILT FOR EXTREME CONDITIONS: Our sealant is an ultra low VOC, heavy-duty asphalt emulsion infused with polymers. This unique formula ensures resilience against harsh temperatures, weather challenges, and vibrations, providing unwavering waterproof confidence in any situation. Its liquid rubber application dries to a tough, flexible, and UV-stable finish, making it the ideal choice for waterproofing projects indoors and outdoors. - THE ULTIMATE DIY WATERPROOFER: BEEST Waterproof Sealant is tough and versatile enough to tackle almost any waterproofing project. Ideal for roofs, gutters, sheds, planter boxes, and more. From cement, brick, and block, to wood, metal, and more; BEEST Waterproof Sealant has you covered. - NO HASSLE APPLICATION: Ensure surface is free of oil, grease, dirt, or other particles that could inhibit adhesion, open your pail of BEEST Waterproof Sealant and MIX THOROUGHLY. Apply with a brush or roller, working the coating into the substrate, at an approximate rate of 1 gallon per 25-35 sq. ft. for best results. - MADE IN THE USA BY AMERICAN FAMILY-OWNED COMPANY: BEEST is a USA-based company located in Carlisle, Pennsylvania. All BEEST products have a 100% satisfaction guarantee and excellent USA customer service members waiting by the phone to answer any questions you may have. BEEST continues to work hard to deliver top-quality sealants and cleaners for your projects! ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0C7CTJTYP | | Best Sellers Rank | #244,165 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #767 in Hardware Sealers | | Brand | BEEST | | Brand Name | BEEST | | Color | clear/colorless | | Compatible Material | Liquid Rubber | | Customer Reviews | 3.9 out of 5 stars 137 Reviews | | Included Components | Liquid | | Item Dimensions | 3.5 x 3.5 x 8 inches | | Item Form | Liquid | | Item dimensions L x W x H | 3.5 x 3.5 x 8 inches | | Manufacturer | Petra | | Material | Rubber | | Material Type | Rubber | | Model | B-5020 | | Number of Items | 1 | | Part Number | B-5020 | | Style | 1 Gallon | | Style Name | 1 Gallon | | Surface Recommendation | Roof, Metal, Deck, Gutter, Basement | | UPC | 810148640002 | | Unit Count | 128 Fluid Ounces | | Water Resistance Level | Waterproof | ## Product Details - **Brand:** BEEST - **Item dimensions L x W x H:** 3.5 x 3.5 x 8 inches - **Material:** Rubber - **Style:** 1 Gallon - **Water Resistance Level:** Waterproof ## Images ![BEEST Liquid Rubber Waterproof Sealant Black, 1 Gallon Covers up to 25-35 Sq ft| Roof Sealant Waterproof Coating for Indoor & Outdoor Leak Repair| Easy to Apply Waterproofing Foundation Sealer - Image 1](https://m.media-amazon.com/images/I/71al1IFcuEL.jpg) ![BEEST Liquid Rubber Waterproof Sealant Black, 1 Gallon Covers up to 25-35 Sq ft| Roof Sealant Waterproof Coating for Indoor & Outdoor Leak Repair| Easy to Apply Waterproofing Foundation Sealer - Image 2](https://m.media-amazon.com/images/I/81yYW+UPONL.jpg) ![BEEST Liquid Rubber Waterproof Sealant Black, 1 Gallon Covers up to 25-35 Sq ft| Roof Sealant Waterproof Coating for Indoor & Outdoor Leak Repair| Easy to Apply Waterproofing Foundation Sealer - Image 3](https://m.media-amazon.com/images/I/812kYDiWSgL.jpg) ![BEEST Liquid Rubber Waterproof Sealant Black, 1 Gallon Covers up to 25-35 Sq ft| Roof Sealant Waterproof Coating for Indoor & Outdoor Leak Repair| Easy to Apply Waterproofing Foundation Sealer - Image 4](https://m.media-amazon.com/images/I/910FJSrqB+L.jpg) ![BEEST Liquid Rubber Waterproof Sealant Black, 1 Gallon Covers up to 25-35 Sq ft| Roof Sealant Waterproof Coating for Indoor & Outdoor Leak Repair| Easy to Apply Waterproofing Foundation Sealer - Image 5](https://m.media-amazon.com/images/I/91KUJrRmL5L.jpg) ## Available Options This product comes in different **Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Really helped with my leaky garage. *by D***E on March 10, 2025* 3 sides of my garage are built 3 feet underground. Seller didn’t disclose it floods. This stuff is great. It really helped with two of the leaking walls. ### ⭐⭐⭐⭐⭐ No more leaks. *by D***N on February 24, 2026* Seal shed from rain. ### ⭐ Does not adhere to wood as demonstrated in pictures! *by K***. on February 7, 2026* Tough to put on, long dry times, and especially does NOT adhere to wood in cold conditions. Was so excited able this stuff. Takes a while to dry even in warm weather, but it was sticky stuff. Painted 16 4×4's for a big chicken coop and in the summer it looked fantastic. Winter came and it just started just falling off the wood on its own. Live in the pacific northwest so winters are not that bad of conditions. Described to work on wood, shows pictures of it being applied to wood. So disappointing. 🙁 ## Frequently Bought Together - BEEST Liquid Rubber Waterproof Sealant Black, 1 Gallon Covers up to 25-35 Sq ft| Roof Sealant Waterproof Coating for Indoor & Outdoor Leak Repair| Easy to Apply Waterproofing Foundation Sealer - BEEST Multi-Purpose Primer - Gray, 1 Gallon Covers up to 250 Sq Ft| Liquid Rubber Deck Coating - Elastomeric Roof Coating - Water-Based, High-Adhesion Bonding Primer for Concrete, Metal, Wood, TPO - BEEST RV Roof Cleaner (32 Oz Super Concentrated Makes 5 gallons) - Roof Cleaner & Degreaser - Removes Dirt & Stains - Easy to Use - Best For Cleaning RVs, Campers, Trailer, Metal Building, Motorhomes --- ## 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/575146060-beest-liquid-rubber-waterproof-sealant-black-1-gallon-covers-up](https://www.desertcart.jp/products/575146060-beest-liquid-rubber-waterproof-sealant-black-1-gallon-covers-up) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-08-21*