--- product_id: 393013905 title: "1 Gallon, Clear, Liquid Rubber Coating Sealant, Waterproof, Flexible, Breathable, and UV Resistant, Roof Repair, Basements, RV, Campers, Trailers, Marine, EPDM, Masonry" brand: "flex seal liquid" price: "$459.26" currency: USD in_stock: true reviews_count: 5 category: "Flex Seal Liquid" url: https://www.desertcart.us/products/393013905-1-gallon-clear-liquid-rubber-coating-sealant-waterproof-flexible-breathable store_origin: US region: United States of America --- # UV Resistant Formula Brush, Roll, Dip or Pour Application 100% Waterproof Seal 1 Gallon, Clear, Liquid Rubber Coating Sealant, Waterproof, Flexible, Breathable, and UV Resistant, Roof Repair, Basements, RV, Campers, Trailers, Marine, EPDM, Masonry **Brand:** flex seal liquid **Price:** $459.26 **Availability:** ✅ In Stock ## Summary > 🛠️ Seal it, protect it, flex it—your all-in-one liquid armor! ## Quick Answers - **What is this?** 1 Gallon, Clear, Liquid Rubber Coating Sealant, Waterproof, Flexible, Breathable, and UV Resistant, Roof Repair, Basements, RV, Campers, Trailers, Marine, EPDM, Masonry by flex seal liquid - **How much does it cost?** $459.26 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/393013905-1-gallon-clear-liquid-rubber-coating-sealant-waterproof-flexible-breathable) ## 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 - • **Clear & Flexible Finish:** Maintains original surface aesthetics while providing a breathable, flexible barrier that won’t crack or peel. - • **Bulk Ready for Emergencies:** 1-gallon size ensures you’re always prepared for unexpected leaks or damage—never run out when it matters most. - • **Ultimate Waterproof Shield:** Seals out water, air, and moisture with a flexible rubberized coating that adapts to any surface. - • **Versatile Application Control:** Brush, roll, dip, or pour for precision coverage—perfect for detailed repairs or large projects. - • **Durable UV & Chemical Resistance:** Protects surfaces from sun damage and corrosive elements, extending the life of your repairs. ## Overview Flex Seal Liquid is a clear, flexible liquid rubber coating designed for waterproofing and protecting a variety of surfaces including roofs, basements, RVs, and marine equipment. Its brushable formula offers precise application, forming a durable, UV-resistant, and chemical-resistant barrier that prevents rust and corrosion. Available in a convenient 1-gallon size, it’s the go-to solution for professional-grade repairs and long-lasting protection. ## Description Flex Seal Liquid Rubber in a Can, 1-gal, Clear Review: This product will bubble and cause flex to fall off in areas (no idea why only certain parts). They put the stupid crimps on the top of the paint cans which make them almost impossible to take off as well as you will not be able to reseal the paint can afterwards. It's extremely thick so does not cover very far on rough surfaces and it rips the fuzziness off of your rollers or the hairs out of your brushes. It feels like you are working with sticky goo. And it comes off very easily so I would not recommend it for ponds where you are going to be adding rocks. Edit: Flex Seal has reached out to me to try and resolve this issue, i greatly appriciate a company that stands behind there product. I will update soon. After repairing the bubbling and applying the second coat i noticed it applies much further when doing a second coat than your first coat on a rough surface. Moving rocks into the pond caused a fair amount of damage to the sealant surface as it seems to be fairly that of a silicone like substance. After testing with water and time, i feel the concrete may have absorbed the product a bit helping these flaws. I have some patching to do but am concerned that since i was not able to close the container due to the packaging crimps i may have lost my other half gallon. ***When it dries, if water is placed on top of flex seal, you will get an EXTREMELY slippery surface. (Like a cartoon banana peel).*** Be extremely careful if walking on when wet. But on the other hand it could probably make the worlds best waterslide lol Review: I like having the option to paint this product on! It gives you way more control over where it is applied, compared to the spray! I have used this for several different applications. I have painted window sills, that my gutters are back dripping onto, it repels the water & keep the wood from rotting. I have sealed gutter seams that were leaking. I painted the inside of a metal trash can that I am using as a Faraday cage to protect my electronics. I figured a layer of rubber would definitely help break the conductivity & keep things safer inside. It does have a VERY strong odor, it took me several days to air out the can I am using for my electronics. Once it is completely dry, it does start to fade, but not completely. Having this around to use & being able to apply as much, or little as I want, is why I got this in a gallon size. You just never know when you are going to need it & when you suddenly do need it, it is nice to have more than a cans worth, which can run out pretty fast when there is actually a situation that needs tending to in a hurry! The fact that it is clear is also a bonus, it works with what ever color your using it on. ## 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 - Prevents rust and corrosion. Chemical resistant ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B019QNK9RA | | Best Sellers Rank | #52,800 in Automotive ( See Top 100 in Automotive ) #208 in Automotive Fillers, Adhesives & Sealants #445 in Hardware Sealers | | Brand Name | Flex Seal Liquid | | Color | Clear | | Compatible Material | Metal | | Customer Reviews | 4.4 4.4 out of 5 stars (604) | | Included Components | Flex Seal Liquid Rubber in a Can, 1-gal, Clear | | Item Dimensions | 19.7 x 16.5 x 16.5 centimeters | | Item Form | Liquid | | Item Type Name | Flex Seal Liquid Rubber in a Can, 1-gal, Clear | | Item Weight | 4.2 kg | | Manufacturer | Swift Response, LLC | | Material Type | Rubber | | Model | US855CLR01 | | Number of Items | 1 | | Part Number | LFSCLRD01BC | | Style Name | Compact | | Surface Recommendation | Tile | | UPC | 853517006337 | | Unit Count | 3785.41 Milliliters | | Water Resistance Level | Waterproof | ## Product Details - **Brand:** Flex Seal Liquid - **Item dimensions L x W x H:** 19.7 x 16.5 x 16.5 centimeters - **Item weight:** 9.25 Pounds - **Material:** Rubber - **Style:** Compact ## Images ![1 Gallon, Clear, Liquid Rubber Coating Sealant, Waterproof, Flexible, Breathable, and UV Resistant, Roof Repair, Basements, RV, Campers, Trailers, Marine, EPDM, Masonry - Image 1](https://m.media-amazon.com/images/I/81a4ydF5EtL.jpg) ## Questions & Answers **Q: Can this product be used to coat a concrete fishpond, i.e. for a fully immersed condition?** A: Yes Flex Seal Liquid can be used to coat a concrete fish pond. For best results sweep off the concrete to make sure there's no concrete dust and then apply. Let dry for 24-48 hours. Flex Seal Liquid is food grade safe, so your fish can swim around in it with no worries. **Q: To what depth (thickness) can this be poured and still cure?** A: Flex Seal Liquid can be poured to any thickness desired. We recommend pouring in layers 1/4-1/2" thick to ensure the product cures completely. For a normal application Flex Seal Liquid takes 24-48 hours to completely cure. **Q: When using a roller, what nap is best?** A: Which type of roller is best suited to apply flexseal liquid **Q: How much area will 1 gallon cover?** A: 1 Large 16oz - approx. 20Sq. Ft., 1 Jumbo 32oz - approx. 40Sq. Ft., 1 Gallon can - approx. 150Sq. Ft. ## Customer Reviews ### ⭐⭐⭐ Review *by J***W on 29 June 2018* This product will bubble and cause flex to fall off in areas (no idea why only certain parts). They put the stupid crimps on the top of the paint cans which make them almost impossible to take off as well as you will not be able to reseal the paint can afterwards. It's extremely thick so does not cover very far on rough surfaces and it rips the fuzziness off of your rollers or the hairs out of your brushes. It feels like you are working with sticky goo. And it comes off very easily so I would not recommend it for ponds where you are going to be adding rocks. Edit: Flex Seal has reached out to me to try and resolve this issue, i greatly appriciate a company that stands behind there product. I will update soon. After repairing the bubbling and applying the second coat i noticed it applies much further when doing a second coat than your first coat on a rough surface. Moving rocks into the pond caused a fair amount of damage to the sealant surface as it seems to be fairly that of a silicone like substance. After testing with water and time, i feel the concrete may have absorbed the product a bit helping these flaws. I have some patching to do but am concerned that since i was not able to close the container due to the packaging crimps i may have lost my other half gallon. ***When it dries, if water is placed on top of flex seal, you will get an EXTREMELY slippery surface. (Like a cartoon banana peel).*** Be extremely careful if walking on when wet. But on the other hand it could probably make the worlds best waterslide lol ### ⭐⭐⭐⭐⭐ Review *by O***L on 28 January 2018* I like having the option to paint this product on! It gives you way more control over where it is applied, compared to the spray! I have used this for several different applications. I have painted window sills, that my gutters are back dripping onto, it repels the water & keep the wood from rotting. I have sealed gutter seams that were leaking. I painted the inside of a metal trash can that I am using as a Faraday cage to protect my electronics. I figured a layer of rubber would definitely help break the conductivity & keep things safer inside. It does have a VERY strong odor, it took me several days to air out the can I am using for my electronics. Once it is completely dry, it does start to fade, but not completely. Having this around to use & being able to apply as much, or little as I want, is why I got this in a gallon size. You just never know when you are going to need it & when you suddenly do need it, it is nice to have more than a cans worth, which can run out pretty fast when there is actually a situation that needs tending to in a hurry! The fact that it is clear is also a bonus, it works with what ever color your using it on. ### ⭐⭐⭐⭐⭐ Review *by R***L on 2 September 2025* Great option for sealing our camper roof ## Frequently Bought Together - Flex Seal Liquid, 1 Gallon, Clear, Liquid Rubber Coating Sealant, Waterproof, Flexible, Breathable, and UV Resistant, Roof Repair, Basements, RV, Campers, Trailers, Marine, EPDM, Masonry - Flex Seal MAX, 17 oz, 2-Pack, Clear, Stop Leaks Instantly, Waterproof Rubber Spray On Sealant Coating, Perfect for Gutters, Wood, RV, Campers, Roof Repair, Skylights, Windows, and More - Flex Caulk, Waterproof & Weatherproof Hybrid Polymer Sealant, Strong, Paintable, Indoor, Outdoor, Bath, Shower, Sink, Window, Baseboards, Door, RV, Roof, Wood, Auto & Marine, Clear, 6.6 oz, 2-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.us/products/393013905-1-gallon-clear-liquid-rubber-coating-sealant-waterproof-flexible-breathable](https://www.desertcart.us/products/393013905-1-gallon-clear-liquid-rubber-coating-sealant-waterproof-flexible-breathable) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-05-17*