--- product_id: 258860070 title: "14 oz, 2-Pack, 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: "¥20463" currency: JPY in_stock: true url: https://www.desertcart.jp/products/258860070-14-oz-2-pack-white-stop-leaks-instantly-waterproof-rubber store_origin: JP region: Japan --- # Long-lasting Waterproof Flexible Sealant 14 oz, 2-Pack, 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:** ¥20463 **Availability:** ✅ In Stock ## Summary > 🛡️ Seal the Deal with Flex Seal! ## Quick Answers - **What is this?** 14 oz, 2-Pack, 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?** ¥20463 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/258860070-14-oz-2-pack-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 - • **Weather Warrior:** Stays flexible in heat and cold; no sagging or cracking. - • **Crafty Companion:** Ideal for arts & crafts—unleash your creativity! - • **Paintable Perfection:** Once dry, paint it any color to match your style. - • **Versatile Protection:** Perfect for gutters, RVs, roofs, and more—transform anything! - • **Seal It, Don't Stress It!:** Instantly stop leaks with a durable, rubberized coating. ## Overview Flex Seal is a 14 oz, 2-pack waterproof rubber spray-on sealant that instantly stops leaks and protects surfaces. It dries to a flexible, rubberized coating that can be painted any color, making it perfect for a variety of applications including gutters, RVs, roofs, and more. Its unique formula ensures it remains pliable in extreme temperatures, providing long-lasting protection against corrosion and wear. ## Description Flex Seal is a liquid rubber coating spray that turns into a durable waterproof barrier. It's easy to use and comes in a portable aerosol spray can. Flex Seal sprays out as a liquid, seeping into cracks and holes, and then dries to a rubberized coating. Flex Seal stops vibrations and deadens noise. Flex Seal seals out water, air, moisture, preventing rust and corrosion. Once dry, can be painted any color. EXCELLENT FOR: Arts and crafts, Roof leaks, gutters, RV’S, campers, mobile home roofs, skylights, vent pipes, flashings, hoses, PVC Pipes, window sills, A/C drip pans, portable A/C units, duct work, chimneys, boats, bird baths, ponds, fountains, downspouts, flat Roofs, metal roofs, foundations, gravel stops, asphalt shingles, overlapped seams, drip edges, rubberized and granulated roofs and so much more! ## 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 | B00W5Y2X36 | | Best Sellers Rank | #127 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1 in Hardware Sealers | | Brand | Flex Seal | | Brand Name | Flex Seal | | Color | White | | Compatible Material | Rubber | | Customer Reviews | 4.4 out of 5 stars 38,988 Reviews | | Global Trade Identification Number | 00810129871333 | | Included Components | Flex Seal Spray Rubber Sealant Coating, 14-oz, White (2 Pack) | | Item Dimensions | 9.5 x 2.5 x 2.5 inches | | Item Form | Spray | | Item Weight | 2 Pounds | | 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 | FSWHTR20 | | Number of Items | 2 | | Part Number | FSWHTR20 | | Style | FSWHTR20-A-2PK | | Style Name | FSWHTR20-A-2PK | | Surface Recommendation | Roof | | UPC | 810129871333 | | Unit Count | 28.0 Fluid Ounces | | Warranty Description | As Labeled | | Water Resistance Level | Waterproof | ## Product Details - **Material:** Rubber - **Brand:** Flex Seal - **Style:** FSWHTR20-A-2PK - **Item weight:** 1.04 kg - **Item dimensions L x W x H:** 24.1 x 6.4 x 6.4 centimeters ## Images ![14 oz, 2-Pack, 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/81jVN9WiBTL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Questions & Answers **Q: Can you use this Flex seal too caulk around your window frames? (more like a insulation)?, or stop a small draft creeping thru your window pane?** A: I'm sure you can. I have a waterwheel and trough. I sealed the trough, as it was leaking in several places. Even though water runs rapidly down the trough, I've had no leaking now for 2 years. I also used it to seal a leak on my ATV tir rim. The rim had a slight curve and wouldn't hold air. I sealed the sot that was leaking and it worked perfectly. **Q: I have a leak in my car trunk, can this be used?** A: It really depends on why there is a leak, but probably not. If it's the weather stripping around the trunk (that rubber tubing stuff), I doubt that this stuff will replace or repair that. That's the most likely reason you have a leak. The seal needs replacing. **Q: Can it be used on concrete?** A: Yes you can use Flex Seal on concrete. **Q: I would like to use this to refinish and seal up a mobile home bathtub. Does it clean easily? Will it hold up to the constant use of a bathtub?** A: It will definitely seal and refinish the tub. I’m not sure about easy clean up as I only used it on a boat but it should clean up nicely as it seems to be self leveling spray and is very smooth when completely cured ## Frequently Bought Together - Flex Seal, 14 oz, 2-Pack, White, 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, White, 9 oz, 1-Pack - Flex Paste, Waterproof Paintable Putty, Spackle Sealant, Fill Gaps Cracks Holes - Block Out Water and Air - UV Resistant - Walls, Drywall, EPDM, Concrete, Roof, RV Repairs, White, Half-Quart --- ## 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.jp/products/258860070-14-oz-2-pack-white-stop-leaks-instantly-waterproof-rubber](https://www.desertcart.jp/products/258860070-14-oz-2-pack-white-stop-leaks-instantly-waterproof-rubber) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-05-15*