--- product_id: 352099975 title: "Flex Seal Liquid Rubber Sealant Coating, Waterproof, Black, 320 oz" brand: "flex seal liquid" price: "$689.12" currency: USD in_stock: true category: "Flex Seal Liquid" url: https://www.desertcart.us/products/352099975-flex-seal-liquid-rubber-sealant-coating-waterproof-black-320-oz store_origin: US region: United States of America --- # 100% waterproof sealant UV resistant formula 320 oz liquid rubber volume Flex Seal Liquid Rubber Sealant Coating, Waterproof, Black, 320 oz **Brand:** flex seal liquid **Price:** $689.12 **Availability:** ✅ In Stock ## Summary > 💧 Seal it, protect it, forget it—Flex Seal your way to leak-proof peace of mind! ## Quick Answers - **What is this?** Flex Seal Liquid Rubber Sealant Coating, Waterproof, Black, 320 oz by flex seal liquid - **How much does it cost?** $689.12 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/352099975-flex-seal-liquid-rubber-sealant-coating-waterproof-black-320-oz) ## Best For - flex seal liquid enthusiasts ## Why This Product - Trusted flex seal liquid brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Heavy-Duty Volume:** Generous 320 oz can for tackling large jobs without running dry. - • **Ultimate Leak Defense:** Creates a watertight, flexible rubber barrier that stops leaks fast. - • **Rust & Corrosion Shield:** Prevents metal decay, extending the life of your surfaces. - • **Built to Brave the Elements:** UV resistant and chemical resistant for long-lasting protection. - • **Versatile Application Mastery:** Brush, roll, dip, or pour—flexible coverage for every project. ## Overview Flex Seal Liquid Rubber Sealant Coating is a 320 oz black waterproof liquid rubber that can be brushed, rolled, dipped, or poured on to create a flexible, watertight seal. It offers UV resistance, prevents rust and corrosion, and is chemical resistant, making it ideal for roofs, basements, RVs, gutters, and masonry. Durable and easy to apply, it’s designed to stop leaks fast and protect surfaces from harsh elements. ## Description Flex Seal Liquid Rubber Sealant Coating, Waterproof, Black, 320 oz | Stops leaks fast, brush, roll, dip or pour on, UV resistant, prevents rust, corrosion, roof, basement, RV, gutters, masonry: desertcart.com: Tools & Home Improvement ## Features - Flex Seal Liquid is liquid rubber in a can! Now you can brush, roll, dip or pour it on! - Use anywhere you need a watertight, flexible rubberized coating - Goes on smooth and covers fast, sealing out water, air and moisture - UV Resistant - Prevents rust and corrosion. Chemical resistant ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0916RKHLH | | Best Sellers Rank | #198,899 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #639 in Hardware Sealers | | Brand Name | Flex Seal Liquid | | Color | Black | | Compatible Material | Rubber | | Customer Reviews | 4.3 4.3 out of 5 stars (118) | | Global Trade Identification Number | 00850017897434 | | Included Components | Item | | Item Dimensions | 10.5 x 10 x 10 inches | | Item Form | Liquid | | Item Highlight | Stops leaks fast, brush, roll, dip or pour on, UV resistant, prevents rust, corrosion, roof, basement, RV, gutters, masonry | | Item Type Name | Flex Liquid MAX Black 2.5 Gallons | | Item Weight | 20 pounds | | Manufacturer | Swift Response, LLC | | Material Type | Rubber | | Model | LFSMAXBLK02 | | Number of Items | 1 | | Part Number | LFSMAXBLK02 | | Style Name | Liquid Rubber | | Surface Recommendation | Roof | | UPC | 850017897434 | | Unit Count | 320 Fluid Ounces | | Warranty Description | 1 Year Limited | | Water Resistance Level | Waterproof | ## Product Details - **Brand:** Flex Seal Liquid - **Item Weight:** 20 pounds - **Item dimensions L x W x H:** 10.5 x 10 x 10 inches - **Material:** Rubber - **Style:** Liquid Rubber ## Images ![Flex Seal Liquid Rubber Sealant Coating, Waterproof, Black, 320 oz - Image 1](https://m.media-amazon.com/images/I/51CkclpgKtL.jpg) ![Flex Seal Liquid Rubber Sealant Coating, Waterproof, Black, 320 oz - Image 2](https://m.media-amazon.com/images/I/41slFPeNDIL.jpg) ![Flex Seal Liquid Rubber Sealant Coating, Waterproof, Black, 320 oz - Image 3](https://m.media-amazon.com/images/I/51u48zWDKWL.jpg) ![Flex Seal Liquid Rubber Sealant Coating, Waterproof, Black, 320 oz - Image 4](https://m.media-amazon.com/images/I/51mqkHiWz1L.jpg) ![Flex Seal Liquid Rubber Sealant Coating, Waterproof, Black, 320 oz - Image 5](https://m.media-amazon.com/images/I/51qZRRNB-PL.jpg) ## Available Options This product comes in different **Pattern** options. ## Frequently Bought Together - Flex Seal Liquid MAX, 2.5 Gallon, Black, Liquid Rubber Coating Sealant, Waterproof, Flexible, Breathable, and UV Resistant, Roof Repair, Basements, RV, Campers, Trailers, Marine, EPDM, Masonry - Flex Seal 2-Pack Black 17oz Stop Leaks Instantly, Waterproof Sealant Coating For Gutters, RV, Roof, Skylights, Windows - Flex Tape, MAX, Original Thick Flexible Rubberized Waterproof Tape - Seal and Patch Leaks, Works Underwater, Indoor Outdoor - Home RV Roof and Pool Repairs, Black, 4 in x 25 ft, Pack of 1 --- ## 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.us/products/352099975-flex-seal-liquid-rubber-sealant-coating-waterproof-black-320-oz](https://www.desertcart.us/products/352099975-flex-seal-liquid-rubber-sealant-coating-waterproof-black-320-oz) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-09-04*