--- product_id: 552777220 title: "Spray Rubber Sealant Coating, 14-oz, Blue" brand: "flex seal" price: "£29.96" currency: GBP in_stock: true reviews_count: 5 category: "Flex Seal" url: https://www.desertcart.co.uk/products/552777220-spray-rubber-sealant-coating-14-oz-blue store_origin: GB region: United Kingdom --- # Watertight flexible seal Heat & cold resistant Multi-surface adhesion Spray Rubber Sealant Coating, 14-oz, Blue **Brand:** flex seal **Price:** £29.96 **Availability:** ✅ In Stock ## Summary > 💧 Seal it. Protect it. Flex your fix like a pro. ## Quick Answers - **What is this?** Spray Rubber Sealant Coating, 14-oz, Blue by flex seal - **How much does it cost?** £29.96 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/552777220-spray-rubber-sealant-coating-14-oz-blue) ## 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 - • **Flexible & Durable:** Remains pliable for years—no cracking or peeling in extreme weather - • **Customizable Finish:** Dries blue but can be painted any color to match your style or project - • **Seal Leaks Instantly:** Sprays on fast, seeps into cracks & holes for a watertight barrier - • **Versatile Application:** Perfect for gutters, roofs, RVs, crafts, and more—protects virtually everything - • **Weatherproof Performance:** Works on wet or dry surfaces without sagging or dripping, rain or shine ## Overview Flex Seal Spray Rubber Sealant Coating (14 oz, Blue) delivers a fast, watertight, and flexible rubberized seal that penetrates cracks and holes. Engineered to withstand extreme temperatures without cracking or peeling, it adheres to wet or dry surfaces and can be painted over for a customized finish. Ideal for a wide range of applications from home repairs to creative projects, it’s the go-to solution for professionals and DIYers who demand durable, weatherproof protection. ## Description Flex Seal, 14 OZ, Blue Liquid Rubber, Stops Leaks Fast, Seeps Into Cracks & Holes, Seals Out Water, Lasts For Years, Dries To A Watertight, Flexible Rubberized Coating, Ideal For Arts & Crafts, Projects & Hobbies & Sealing Outdoor Decorate Items, Transform & Protect Virtually Everything. Review: After having a leak in my pond tarp and reading a pond site that said I can use Flex Seal to cover up the punctures in the lining. I used Flex Seal tape to put over the holes and then put a clear coat of Flex Seal spray over that. Then I thought I would try the blue spray because I really don't like the look of the black tarp. So maybe I went a bit crazy covering the WHOLE tarp but I think it looks far better than the black and it has sealed the leaks. It sprayed nice and evenly. I made sure to shake the can really well and sprayed in a swift motion. No drips or uneven areas even was able to spray up to the edge of the wood boards without getting it on them but spraying between the tarp and board. Had to get a few more bottles just to finish up in the one corner where I ran out of spray. Can't wait to get the water and turtle in it. Review: I bought this to repair tears in my pool float. It did not spray on evenly and it stays sticky to the touch. So because I trusted this to work, both are being trashed and I have to purchase a new float. On the bright side...they stand by their product so I upped the rating to a 4. ## 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 | B00W5PLEF8 | | Brand Name | Flex Seal | | Compatible Material | Rubber | | Customer Reviews | 4.1 4.1 out of 5 stars (314) | | Global Trade Identification Number | 00855647003538 | | Item Dimensions | 24.1 x 6.4 x 6.4 centimeters | | Item Form | Spray | | Item Type Name | Flex Seal Spray Rubber Sealant Coating, 14-oz, Blue | | Item Weight | 1 Pounds | | Manufacturer | Swift Response, LLC | | Model | FLEX SEAL - FSBLUR20 - BLUE | | Number of Items | 1 | | Part Number | FSBLUR20 | | Style Name | Compact | | Surface Recommendation | Roof, Window | | UPC | 855647003538 | | Unit Count | 14.0 Milliliters | | Water Resistance Level | Waterproof | ## Product Details - **Brand:** Flex Seal - **Item dimensions L x W x H:** 24.1 x 6.4 x 6.4 centimeters - **Item weight:** 1 Pounds - **Style:** Compact - **Water resistance level:** Waterproof ## Images ![Spray Rubber Sealant Coating, 14-oz, Blue - Image 1](https://m.media-amazon.com/images/I/51OIY1QIBkL.jpg) ## Questions & Answers **Q: Can you use this on a koi pond** A: I should work but must be dry and have time to dry after you use flex seal **Q: Can this be used to seal plastic in a cat box to avoid odor?** A: Flex Seal liquid is not plant and animal safe. However Flex Seal Liquid is. We have never tested it for this use. I'm not sure it will take away the odor since there will still be a hole in the cat box for the odor and cat to escape. **Q: I am trying to seal a water fountain. but i want it to be blue. can i use the flex seal liquid first and then spray the blue flex seal for color?** A: I did not use the flex seal liquid, but I did use the blue flex seal on an inside pond, and it has held up very well **Q: How many cans do I need to paint a canoe?** A: Not sure exactly but a can doesn't cover a large area depending on how thick you need to apply it. We used ours for smaller areas and it worked great! ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by H***S on 26 June 2021* After having a leak in my pond tarp and reading a pond site that said I can use Flex Seal to cover up the punctures in the lining. I used Flex Seal tape to put over the holes and then put a clear coat of Flex Seal spray over that. Then I thought I would try the blue spray because I really don't like the look of the black tarp. So maybe I went a bit crazy covering the WHOLE tarp but I think it looks far better than the black and it has sealed the leaks. It sprayed nice and evenly. I made sure to shake the can really well and sprayed in a swift motion. No drips or uneven areas even was able to spray up to the edge of the wood boards without getting it on them but spraying between the tarp and board. Had to get a few more bottles just to finish up in the one corner where I ran out of spray. Can't wait to get the water and turtle in it. ### ⭐⭐⭐⭐ Review *by L***G on 14 September 2021* I bought this to repair tears in my pool float. It did not spray on evenly and it stays sticky to the touch. So because I trusted this to work, both are being trashed and I have to purchase a new float. On the bright side...they stand by their product so I upped the rating to a 4. ### ⭐⭐ Review *by B***R on 17 August 2021* Sprayed inside of heavy plastic bird bath, not to seal a crack just to change color it was black, wanted blue. Many small air bubbles so let dry and put on another coat. dried for several days. Seemed ok. Birds stayed away, figured it had been too long that there was none. Algae did grow! another review said no algae grew. Emptied to clean with dawn and a medium soft brush. Brush and water turned blue! Damn now what? Left it to dry not sure what I can coat it with now. The first time after painting and dry, I rinsed it with plain water before filling it for birds no color bleed until I cleaned off the algae. DISAPPOINTING! This was not a cheap plastic bird bath it's heavy duty and weighted. ## Frequently Bought Together - Flex Seal, 14 oz, Blue, Stop Leaks Instantly, Waterproof Rubber Spray On Sealant Coating, Perfect for Gutters, Wood, RV, Campers, Roof Repair, Skylights, Windows, and More - Flex Seal Spray Flood Protection, 10 oz, 1-Pack, Waterproof Rubberized Coating, Removable, Use on Door Tracks, Seams, Sills, Small Openings, Corners, and Irregular Shapes and More --- ## 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.co.uk/products/552777220-spray-rubber-sealant-coating-14-oz-blue](https://www.desertcart.co.uk/products/552777220-spray-rubber-sealant-coating-14-oz-blue) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-06-03*