--- product_id: 92976181 title: "Flex Seal, 14 oz, White, Stop Leaks Instantly, Waterproof Rubber Spray On Sealant Coating, Perfect for Gutters, Wood, RV, Campers, Roof Repair, Skylights, Windows, and More" brand: "flex seal" price: "HK$247" currency: HKD in_stock: true url: https://www.desertcart.hk/products/92976181-flex-seal-14-oz-white-stop-leaks-instantly-waterproof-rubber store_origin: HK region: Hong Kong --- # Instant waterproof seal Heat & cold resistant Flexible rubber coating Flex Seal, 14 oz, White, Stop Leaks Instantly, Waterproof Rubber Spray On Sealant Coating, Perfect for Gutters, Wood, RV, Campers, Roof Repair, Skylights, Windows, and More **Brand:** flex seal **Price:** HK$247 **Availability:** ✅ In Stock ## Summary > 💧 Seal it. Protect it. Forget leaks forever. ## Quick Answers - **What is this?** Flex Seal, 14 oz, White, Stop Leaks Instantly, Waterproof Rubber Spray On Sealant Coating, Perfect for Gutters, Wood, RV, Campers, Roof Repair, Skylights, Windows, and More by flex seal - **How much does it cost?** HK$247 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/92976181-flex-seal-14-oz-white-stop-leaks-instantly-waterproof-rubber) ## 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:** Rubberized coating stays pliable for years, resisting cracks and peeling. - • **Customizable Finish:** Dries white but can be painted any color to match your style. - • **Multi-Surface Master:** Perfect for gutters, roofs, wood, RVs, and even wet surfaces. - • **Seal Leaks in Seconds:** Spray on and stop leaks instantly—no mess, no stress. - • **All-Weather Protection:** Withstands scorching heat and freezing cold without sagging or cracking. ## Overview Flex Seal is a 14 oz white spray rubber sealant that instantly stops leaks by creating a waterproof, flexible coating. Ideal for a wide range of surfaces including gutters, wood, roofs, and RVs, it resists extreme temperatures and can be painted over once dry, offering long-lasting protection and versatility. ## Description Flex Seal, 14 oz, White, Stop Leaks Instantly, Waterproof Rubber Spray On Sealant Coating, Perfect for Gutters, Wood, RV, Campers, Roof Repair, Skylights, Windows, and More: desertcart.com: Tools & Home Improvement ## 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 | B07JNLJ2BX | | Best Sellers Rank | #350,524 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,019 in Hardware Sealers | | Brand | Flex Seal | | Brand Name | Flex Seal | | Color | White | | Compatible Material | Asphalt, Metal, Polyvinyl Chloride | | Customer Reviews | 4.3 out of 5 stars 1,630 Reviews | | Included Components | Flex Seal Spray Rubber Sealant Coating, 14-oz, White | | Item Dimensions | 9.5 x 2.5 x 2.5 inches | | Item Form | Spray | | Item Weight | 14 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 | 8542053401 | | Number of Items | 1 | | Part Number | FSWHTR20 | | Style | FSWHTR20-M-1PK | | Style Name | FSWHTR20-M-1PK | | Surface Recommendation | Roof,Windows,Wood | | Unit Count | 14.0 Fluid Ounces | | Water Resistance Level | Waterproof | ## Product Details - **Brand:** Flex Seal - **Item Weight:** 14 Ounces - **Item dimensions L x W x H:** 9.5 x 2.5 x 2.5 inches - **Material:** Rubber - **Style:** FSWHTR20-M-1PK ## Images ![Flex Seal, 14 oz, White, Stop Leaks Instantly, Waterproof Rubber Spray On Sealant Coating, Perfect for Gutters, Wood, RV, Campers, Roof Repair, Skylights, Windows, and More - Image 1](https://m.media-amazon.com/images/I/71NQ824kFWL.jpg) ![Flex Seal, 14 oz, White, Stop Leaks Instantly, Waterproof Rubber Spray On Sealant Coating, Perfect for Gutters, Wood, RV, Campers, Roof Repair, Skylights, Windows, and More - Image 2](https://m.media-amazon.com/images/I/7145+5q3XZL.jpg) ![Flex Seal, 14 oz, White, Stop Leaks Instantly, Waterproof Rubber Spray On Sealant Coating, Perfect for Gutters, Wood, RV, Campers, Roof Repair, Skylights, Windows, and More - Image 3](https://m.media-amazon.com/images/I/91Xmb27LnCL.jpg) ![Flex Seal, 14 oz, White, Stop Leaks Instantly, Waterproof Rubber Spray On Sealant Coating, Perfect for Gutters, Wood, RV, Campers, Roof Repair, Skylights, Windows, and More - Image 4](https://m.media-amazon.com/images/I/91fIxwhGEvL.jpg) ![Flex Seal, 14 oz, White, Stop Leaks Instantly, Waterproof Rubber Spray On Sealant Coating, Perfect for Gutters, Wood, RV, Campers, Roof Repair, Skylights, Windows, and More - Image 5](https://m.media-amazon.com/images/I/915OaDFn31L.jpg) ## Questions & Answers **Q: Would flex tape/spray work on a leaky radiator?** A: Thank you for reaching out! Flex Seal Spray has not been tested on this type of application, it is not made to withstand extreme heat or pressure. Flex Tape however will function in temperatures from -70º – 200ºF. Lucas - Customer Care at Flex Seal Products (Swift Response The makers of Flex Seal) **Q: how much coverage is in one 14oz can** A: I don’t know. I aborted my project after it started melting away. **Q: Is the spray good to use in a dish washer with hot water. To be used on dish racks** A: Flex Seal is not FDA approved and should not be used around items that will be exposed to things you will be eating/drinking out of. **Q: Will this stick to galvanized metal / steel ... ??? Thanks ,,!!** A: It didn’t work as advertised for me. I’d talk to my helpful Hardware Man… ## Frequently Bought Together - Flex Seal, 14 oz, White, Stop Leaks Instantly, Waterproof Rubber Spray On Sealant Coating, Perfect for Gutters, Wood, RV, Campers, Roof Repair, Skylights, Windows, and More - Flex Tape, 4 in x 5 ft, Gray, Original Thick Flexible Rubberized Waterproof Tape - Seal and Patch Leaks, Works Underwater, Indoor Outdoor Projects - Home RV Roof Plumbing and Pool Repairs - Flex Seal PFSWHTR16-DS3PKS PFSWHTR16-DS-3PKS Flexseal, White --- ## 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.hk/products/92976181-flex-seal-14-oz-white-stop-leaks-instantly-waterproof-rubber](https://www.desertcart.hk/products/92976181-flex-seal-14-oz-white-stop-leaks-instantly-waterproof-rubber) --- *Product available on Desertcart Hong Kong* *Store origin: HK* *Last updated: 2026-07-13*