--- product_id: 134606238 title: "Flex Seal Spray Rubber Sealant Coating, Waterproof, Red, 14 oz, 1-Pack" brand: "flex seal" price: "β‚©46092" currency: KRW in_stock: true reviews_count: 13 category: "Flex Seal" url: https://www.desertcart.kr/products/134606238-flex-seal-spray-rubber-sealant-coating-waterproof-red-14-oz store_origin: KR region: South Korea --- # 100% Waterproof Seal Heat & Cold Resistant Flexible Rubber Coating Flex Seal Spray Rubber Sealant Coating, Waterproof, Red, 14 oz, 1-Pack **Brand:** flex seal **Price:** β‚©46092 **Availability:** βœ… In Stock ## Summary > πŸ’₯ Seal it. Protect it. Flex your fix like a pro! ## Quick Answers - **What is this?** Flex Seal Spray Rubber Sealant Coating, Waterproof, Red, 14 oz, 1-Pack by flex seal - **How much does it cost?** β‚©46092 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/134606238-flex-seal-spray-rubber-sealant-coating-waterproof-red-14-oz) ## Best For - flex seal enthusiasts ## Why This Product - Trusted flex seal brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Seal Leaks in Seconds:** Stops leaks fast with a watertight, flexible rubber barrier. - β€’ **Weatherproof Durability:** Won't crack, peel, sag, or drip in extreme heat or freezing cold. - β€’ **Long-Lasting Flexibility:** Maintains pliability for years, preventing corrosion and damage. - β€’ **Paintable & Customizable:** Dries to a smooth finish that can be painted any color to match your style. - β€’ **Versatile Surface Protection:** Ideal for gutters, roofs, RVs, wood, metal, and even wet surfaces. ## Overview Flex Seal Spray Rubber Sealant Coating is a 14 oz waterproof, flexible, and paintable spray that quickly seals leaks and protects surfaces from water, air, and corrosion. Engineered to withstand extreme temperatures without cracking or peeling, it’s perfect for a wide range of applications including gutters, roofs, RVs, and wood, ensuring long-lasting durability and professional-grade results. ## Description Flex Seal Spray Rubber Sealant Coating, Waterproof, Red, 14 oz, 1-Pack | Stops leaks fast, seals out water, air, moisture, prevents rust, paintable, flexible, gutters, roof repair, RV, wood, metal - desertcart.com Review: Works Great and Easy to Use - I’m very happy with this Flex Seal spray. It was easy to apply and created a strong waterproof seal. It worked great for covering cracks and small leaks, and I like that it dries to a smooth finish. Definitely a useful product to have around the house for quick repairs. I would recommend it! Review: How to get the best out of Flex Seal and products like it - While not perfect for every application, Flex Seal actually does what it advertises. After reading a lot of the one star reviews, I can see there are a lot of problems with the way people are spraying the product on as well as issues with what is expected. Here are a few tips to get you the best results you can out of a product like this (there are many and they are all basically the same) 1. Choose the right kind of Flex Seal. This may seem obvious but there are several kinds of flex seal and they are all used for different things. I. First, the rubber patch/tape is used for large cracks and or holes where you have full access to the area around it. The tape is very thick and can sometimes be unruly. Lay it flat out, cut it, and then roll it while keeping tension on or slap it on like in the commercial. Do not think you are going to move it around and reposition it. You won't. It's a one shot deal for best results. The tape, size to be at least 3-4 times bigger than the hole you are trying to close up. The tape can handle the most pressure in the product line. You must have enough surface area for the tape to get a good grip around the hole if you plan for it to take any kind of real pressure. II. The roll-on stuff is great for large coverage where you want to get fancy putting on thicker and thinner coats here and there. It applies like a sticky paint. I would say that the paint is the most "accurate" because you will use a roller or a brush to put it on and you can make sharp lines, stuff more material in gaps really easily, and handle uneven surfaces nicely. III. The spray is for quick easy jobs as is the weakest under pressure. It's great for sealing things like sky lights, thin plastic objects, joints on gutters etc. Anything that won't see a lot pressure behind it. It's harder to put on thick, but if you apply it like spray paint you can do amazing things with it. Thin, even coats, in a sweeping motion, over and over again and you can cover just about anything. IV. The flex seal one shot caulking is really just like almost any rubber/silicon caulk. I've only used it once and was not all that impressed so I tend to stay away from this one and use 3M stuff instead. 2. Pick the right color for your application. The Clear does NOT stay clear. It has a tendency to turn yellow in the sun. If you don't mind that, or won't expose to sun or much light, then the clear is fine, however, I usually stick to white or black. PRO TIP: You CAN mix the colors of the roll-on to make different levels of gray. I am sure Flex Seal would frown but it works for me. It takes a lot of churning to get it all mixed and not streaky. Your mileage may vary. 3. Use for the right jobs. Don't expect this to seal high pressure water or stop a leak in a tire. There are limits to its flexibility too. When you can, seal from the inside AND the outside. Use the tape whenever possible as it works the "best" of the products and is insanely tough. 4. A little goes a short way. It doesn't cover as much area as you would think. Always get extra. 5. Using a screen door in the commercials wasn't an accident. When covering a large area, stick a screen type material to the area and screw it in place. Then use flex seal to cover the gaps in the screen. Use many coats, go slow and the kind of gimmick you see in the commercial is possible. If you cut a 4 inch by 4 inch hole in something, don't expect flex seal alone to seal it. Use a backing material. 6. If you are getting bubbles in the flex seal spray you are putting it on too thick. Relax. Put on thinner coats and apply slower. Give it a few minutes to get tacky, then retry. 7. Final PRO TIP: CLEAN THE APPLICATION SURFACE. This one is a no brainer, but over and over again I read about people not doing the prep work. Using de-natured alcohol is best if you can. It leaves no residue and on a clean surface like that it makes Flex Seal stick like you wouldn't believe. This is the most important thing other than choosing the right kind of flex seal to use IMHO. Good luck! P.S. One more thing you can do is use painters tape or the like to cover from over-spray. Really if you treat it like a super thick paint, most of the same principles apply. ## Features - The easy way to coat, seal, protect, and stop leaks fast! Once dry, can be painted any color - Seeps into cracks and holes. Dries to a watertight, flexible, rubberized coating. Stays flexible and pliable; lasts many years - Transform and protect virtually everything! Ideal for arts & crafts, projects & hobbies - Protects surface from corrosion, can be used on wet or dry surfaces - Will not sag or drip in the Summer heat. Will not crack or peel in the Winter cold - Perfect for Gutters, Wood, RV, Campers, Roof Repairs, Skylights, Windows, and more ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00W5PLEGW | | Best Sellers Rank | #122 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1 in Hardware Sealers | | Brand | Flex Seal | | Brand Name | Flex Seal | | Color | Red | | Compatible Material | Rubber | | Customer Reviews | 4.4 out of 5 stars 40,070 Reviews | | Global Trade Identification Number | 00855647003545 | | Included Components | Household Item | | Item Dimensions | 9.5 x 2.5 x 2.5 inches | | Item Form | Spray | | Item Highlight | Stops leaks fast, seals out water, air, moisture, prevents rust, paintable, flexible, gutters, roof repair, RV, wood, metal | | Item Type Name | Flex Seal Spray Rubber Sealant Coating, 14-oz, Red | | Item Weight | 16 ounces | | Item dimensions L x W x H | 9.5 x 2.5 x 2.5 inches | | Manufacturer | Swift Response, LLC | | Material | Rubber | | Material Type | Rubber | | Model | FLEX SEAL - FSREDR20 - RED | | Number of Items | 1 | | Part Number | FSREDR20 | | Style | Red, 14 oz, 1-Pack | | Style Name | Red, 14 oz, 1-Pack | | Surface Recommendation | Roof,Windows,Wood | | UPC | 855647003545 | | Unit Count | 14 Fluid Ounces | | Warranty Description | Warranty | | Water Resistance Level | Waterproof | ## Product Details - **Brand:** Flex Seal - **Item Weight:** 16 ounces - **Item dimensions L x W x H:** 9.5 x 2.5 x 2.5 inches - **Material:** Rubber - **Style:** Red, 14 oz, 1-Pack ## Images ![Flex Seal Spray Rubber Sealant Coating, Waterproof, Red, 14 oz, 1-Pack - Image 1](https://m.media-amazon.com/images/I/71DM5wCT0kL.jpg) ![Flex Seal Spray Rubber Sealant Coating, Waterproof, Red, 14 oz, 1-Pack - Image 2](https://m.media-amazon.com/images/I/81a7sXVSz4L.jpg) ![Flex Seal Spray Rubber Sealant Coating, Waterproof, Red, 14 oz, 1-Pack - Image 3](https://m.media-amazon.com/images/I/81ofuRGGkeL.jpg) ![Flex Seal Spray Rubber Sealant Coating, Waterproof, Red, 14 oz, 1-Pack - Image 4](https://m.media-amazon.com/images/I/81l32VxIfrL.jpg) ![Flex Seal Spray Rubber Sealant Coating, Waterproof, Red, 14 oz, 1-Pack - Image 5](https://m.media-amazon.com/images/I/71rHDTCIKtL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works Great and Easy to Use *by R***A on September 21, 2026* I’m very happy with this Flex Seal spray. It was easy to apply and created a strong waterproof seal. It worked great for covering cracks and small leaks, and I like that it dries to a smooth finish. Definitely a useful product to have around the house for quick repairs. I would recommend it! ### ⭐⭐⭐⭐⭐ How to get the best out of Flex Seal and products like it *by C***C on October 8, 2017* While not perfect for every application, Flex Seal actually does what it advertises. After reading a lot of the one star reviews, I can see there are a lot of problems with the way people are spraying the product on as well as issues with what is expected. Here are a few tips to get you the best results you can out of a product like this (there are many and they are all basically the same) 1. Choose the right kind of Flex Seal. This may seem obvious but there are several kinds of flex seal and they are all used for different things. I. First, the rubber patch/tape is used for large cracks and or holes where you have full access to the area around it. The tape is very thick and can sometimes be unruly. Lay it flat out, cut it, and then roll it while keeping tension on or slap it on like in the commercial. Do not think you are going to move it around and reposition it. You won't. It's a one shot deal for best results. The tape, size to be at least 3-4 times bigger than the hole you are trying to close up. The tape can handle the most pressure in the product line. You must have enough surface area for the tape to get a good grip around the hole if you plan for it to take any kind of real pressure. II. The roll-on stuff is great for large coverage where you want to get fancy putting on thicker and thinner coats here and there. It applies like a sticky paint. I would say that the paint is the most "accurate" because you will use a roller or a brush to put it on and you can make sharp lines, stuff more material in gaps really easily, and handle uneven surfaces nicely. III. The spray is for quick easy jobs as is the weakest under pressure. It's great for sealing things like sky lights, thin plastic objects, joints on gutters etc. Anything that won't see a lot pressure behind it. It's harder to put on thick, but if you apply it like spray paint you can do amazing things with it. Thin, even coats, in a sweeping motion, over and over again and you can cover just about anything. IV. The flex seal one shot caulking is really just like almost any rubber/silicon caulk. I've only used it once and was not all that impressed so I tend to stay away from this one and use 3M stuff instead. 2. Pick the right color for your application. The Clear does NOT stay clear. It has a tendency to turn yellow in the sun. If you don't mind that, or won't expose to sun or much light, then the clear is fine, however, I usually stick to white or black. PRO TIP: You CAN mix the colors of the roll-on to make different levels of gray. I am sure Flex Seal would frown but it works for me. It takes a lot of churning to get it all mixed and not streaky. Your mileage may vary. 3. Use for the right jobs. Don't expect this to seal high pressure water or stop a leak in a tire. There are limits to its flexibility too. When you can, seal from the inside AND the outside. Use the tape whenever possible as it works the "best" of the products and is insanely tough. 4. A little goes a short way. It doesn't cover as much area as you would think. Always get extra. 5. Using a screen door in the commercials wasn't an accident. When covering a large area, stick a screen type material to the area and screw it in place. Then use flex seal to cover the gaps in the screen. Use many coats, go slow and the kind of gimmick you see in the commercial is possible. If you cut a 4 inch by 4 inch hole in something, don't expect flex seal alone to seal it. Use a backing material. 6. If you are getting bubbles in the flex seal spray you are putting it on too thick. Relax. Put on thinner coats and apply slower. Give it a few minutes to get tacky, then retry. 7. Final PRO TIP: CLEAN THE APPLICATION SURFACE. This one is a no brainer, but over and over again I read about people not doing the prep work. Using de-natured alcohol is best if you can. It leaves no residue and on a clean surface like that it makes Flex Seal stick like you wouldn't believe. This is the most important thing other than choosing the right kind of flex seal to use IMHO. Good luck! P.S. One more thing you can do is use painters tape or the like to cover from over-spray. Really if you treat it like a super thick paint, most of the same principles apply. ### ⭐⭐⭐⭐ Sealed the repairs cracks well! *by E***R on September 30, 2026* My garage floor was covered with cracks. I filled them with a concrete crack repair product and allowed it to cure. Then I sprayed the Flex Seal and allowed it to dry and cure. It’s holding up well, and I want to see how it tolerates snow and salt this winter. Remember to let it fully dry and cure before driving on it. It remains tacky for a couple of days. But so far so good for sealing the repaired cracks. ## Frequently Bought Together - Flex Seal, 14 oz, Red, Stop Leaks Instantly, Waterproof Rubber Spray On Sealant Coating, Perfect for Gutters, Wood, RV, Campers, Roof Repair, Skylights, Windows, and More - Flex Seal, 14 oz, Terracotta, Stop Leaks Instantly, Waterproof Rubber Spray On Sealant Coating, Perfect for Gutters, Wood, RV, Campers, Roof Repair, Skylights, Windows, and More --- ## 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.kr/products/134606238-flex-seal-spray-rubber-sealant-coating-waterproof-red-14-oz](https://www.desertcart.kr/products/134606238-flex-seal-spray-rubber-sealant-coating-waterproof-red-14-oz) --- *Product available on Desertcart South Korea* *Store origin: KR* *Last updated: 2026-10-13*