--- product_id: 330580026 title: "Rubber Sealant Coating, Waterproof, White, 320 oz" brand: "flex seal liquid" price: "MX$14319" currency: MXN in_stock: true reviews_count: 8 url: https://www.desertcart.mx/products/330580026-rubber-sealant-coating-waterproof-white-320-oz store_origin: MX region: Mexico --- # 100% waterproof seal UV resistant durability 320 oz liquid rubber power Rubber Sealant Coating, Waterproof, White, 320 oz **Brand:** flex seal liquid **Price:** MX$14319 **Availability:** βœ… In Stock ## Summary > πŸ’§ Seal it once, seal it right β€” Flex Seal your world waterproof! ## Quick Answers - **What is this?** Rubber Sealant Coating, Waterproof, White, 320 oz by flex seal liquid - **How much does it cost?** MX$14319 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.mx](https://www.desertcart.mx/products/330580026-rubber-sealant-coating-waterproof-white-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 - β€’ **UV Shielded Formula:** Maintains integrity and color under harsh sunlight - β€’ **Ultimate Leak Defense:** Seals out water, air, and moisture instantly for total protection - β€’ **Rust & Corrosion Blocker:** Prevents damage and extends lifespan of surfaces - β€’ **Heavy-Duty 320 oz Capacity:** Large volume for big jobs or multiple fixes without compromise - β€’ **Versatile Application Mastery:** Brush, roll, dip, or pourβ€”flexible coverage for every project ## Overview Flex Seal Liquid Rubber Sealant Coating is a 320 oz white, waterproof, and UV-resistant liquid rubber that can be brushed, rolled, dipped, or poured on surfaces like roofs, basements, RVs, and gutters. It provides a flexible, watertight barrier that prevents leaks, rust, and corrosion, making it an essential heavy-duty sealant for durable, long-lasting protection. ## Description Starts out as a thick liquid and dries to a super strong, flexible, watertight, rubberized coating. Blocks out air, water, and moisture for a superior seal, virtually anywhere. Extends the life of patio furniture, pool pumps, RV and shed roofs, and more. Expands, contracts, flexes and stretches. Resists rain, snow, sun, and hail. Works on all types of surfaces, even challenging ones, like metal and glass. Use indoors and outdoors for basement waterproofing, foundation fixes, roof repairs, and more. Fully clean and dry the surface for best results. Etch the surface to help with adhesion if needed. For the best application, use a standard disposable paint roller or paint brush. Apply several even, thin coats and wait 24 - 48 hours for each layer to fully dry before adding the next. Always place the lid back on the container after each use. If drying occurs, remove any skin before using product. ## 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 | B0916SLFH1 | | Best Sellers Rank | #37,973 in Automotive (See Top 100 in Automotive) #65 in RV Sealants | | Brand Name | Flex Seal Liquid | | Color | White | | Compatible Material | Concrete | | Customer Reviews | 4.5 4.5 out of 5 stars (171) 4.5 out of 5 stars | | Global Trade Identification Number | 00850017897441 | | 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 - White 2.5 Gallons | | Item Weight | 28 pounds | | Manufacturer | Swift Response, LLC | | Material Type | Rubber | | Model | LFSMAXWHT02 | | Number Of Items | 1 | | Part Number | LFSMAXWHT02 | | Style Name | Liquid Rubber | | Surface Recommendation | Roof | | Unit Count | 320 Fluid Ounces | | Upc | 850017897441 | | Warranty Description | 1 Year Limited | | Water Resistance Level | Waterproof | ## Product Details - **Brand:** Flex Seal Liquid - **Item Weight:** 28 pounds - **Item dimensions L x W x H:** 10.5 x 10 x 10 inches - **Material:** Rubber - **Style:** Liquid Rubber ## Images ![Rubber Sealant Coating, Waterproof, White, 320 oz - Image 1](https://m.media-amazon.com/images/I/81rgnPYSTgL.jpg) ## Questions & Answers **Q: What is the difference between the MAX and the regular?** A: The max is a slightly different white color. Different color than spray too. Which ever you choose stick with one or you will have multiple shades of white. **Q: What's the best roller nap quarter inch or three eights to apply this with** A: Product is super thick compared to regular paint. Shortest to no nap the best. Takes practice to get used to products viscosity. Try to apply thick and in one coat for best results. Product will self level as well and can also apply with trowel. **Q: Will this work on a fiberglass swimming pool ?** A: I'm not sure how long it will last because it is not reccomended for underfoot applications **Q: Will this work to waterproof bottom of window sills?** A: Yes. This will work well ## Customer Reviews ### ⭐⭐⭐⭐⭐ Fix leak *by on Reviewed in the United States September 30, 2026* Sealed leak ### ⭐⭐⭐⭐⭐ BEST IN THE WEST *by on Reviewed in the United States September 20, 2026* Bought this product 9 years ago for a flashing leak on my fireplace and it is still holding up, I have put this product on my RV roof now for a soon to fail vinyl top and same, I feel, will keep the roof waterproof for years to come. Save yourself the money, the RV shop quoted me $7K to replace the membrane!! ### ⭐⭐⭐⭐⭐ The product is easy to work with and it keeps out the water! *by on Reviewed in the United States May 11, 2025* I looked at a number of different products to use on the roof of my RV. It is an older RV, 1985 and other owners had removed air conditioner and roof vent. The patches were poorly done, and were done with various materials. I decided to go with Flexseal having used the product for other purposes and being satisfied. When I was on the roof I noticed a weak spot with the material being broken in several places. I decided to use a piece of roofing metal and cut it to size. I then used construction adhesive to glue it to the roof. I placed weights around the edges to get a tight patch. I then applied the Flexseal over the patch. Totally on the patch I put three coats and put extra on the edges of the patch. I purchased the 2 1/2 gallon size and I was able to cover the roof two times with material left over. It is a class C motorhome measuring 25 feet. For the first coat I used a roller for the center and a 3 inch short bristle brush for the edges and around fittings. The roller leaves a little thinner application so I used the brush only on the second coat. Each dip of the brush only covered a 6 inch by 6 inch area but I was able to apply it thicker. There have been several hard rains since it was applied and there are no leaks. I am pleased with the product and would recommend it. ## Frequently Bought Together - Flex Seal Liquid MAX, 2.5 Gallon, White, Liquid Rubber Coating Sealant, Waterproof, Flexible, Breathable, and UV Resistant, Roof Repair, Basements, RV, Campers, Trailers, Marine, EPDM, Masonry - Flex Caulk, Waterproof & Weatherproof Hybrid Polymer Sealant, Strong, Paintable, Indoor, Outdoor, Bath, Shower, Sink, Window, Baseboards, Door, RV, Roof, Wood, Auto & Marine, White, 9 oz, 2-Pack - Flex Seal Liquid, 1 Gallon, White, Liquid Rubber Coating Sealant, Waterproof, Flexible, Breathable, and UV Resistant, Roof Repair, Basements, RV, Campers, Trailers, Marine, EPDM, Masonry --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.mx/products/330580026-rubber-sealant-coating-waterproof-white-320-oz](https://www.desertcart.mx/products/330580026-rubber-sealant-coating-waterproof-white-320-oz) --- *Product available on Desertcart Mexico* *Store origin: MX* *Last updated: 2026-10-23*