--- product_id: 142309104 title: "Spray Rubber Sealant Coating, Waterproof, Black, 2 oz, 1-Pack" brand: "flex seal" price: "Β₯2421" currency: JPY in_stock: true reviews_count: 8 category: "Flex Seal" url: https://www.desertcart.jp/products/142309104-spray-rubber-sealant-coating-waterproof-black-2-oz-1-pack store_origin: JP region: Japan --- # Waterproof rubberized coating Flexible black finish 2 oz portable aerosol spray Spray Rubber Sealant Coating, Waterproof, Black, 2 oz, 1-Pack **Brand:** flex seal **Price:** Β₯2421 **Availability:** βœ… In Stock ## Summary > πŸ› οΈ Seal it, forget it β€” leak-proof your life with Flex Seal Mini! ## Quick Answers - **What is this?** Spray Rubber Sealant Coating, Waterproof, Black, 2 oz, 1-Pack by flex seal - **How much does it cost?** Β₯2421 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/142309104-spray-rubber-sealant-coating-waterproof-black-2-oz-1-pack) ## 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€’ **Flexible & Durable:** Remains pliable to handle expansion and contraction without cracking. - β€’ **Sleek Black Finish:** Matches your style while providing a professional, paintable seal. - β€’ **Compact & Travel-Ready:** Lightweight 2 oz size fits perfectly in your toolkit or glove box. - β€’ **Spray & Seal in Seconds:** Effortlessly apply a liquid that dries into a durable rubber shield. - β€’ **Ultimate Leak Protection:** Stops water, air, and moisture fast to safeguard your gear and space. ## Overview Flex Seal Mini is a 2 oz portable aerosol spray that delivers a fast-drying, waterproof rubberized coating. Designed for quick fixes on leaks and cracks, it stays flexible and durable across various surfaces like metal, wood, and rubber. Its compact size and sleek black finish make it the perfect on-the-go sealant for professionals and DIYers alike. ## Description Flex Seal Mini Liquid Rubber Sealant Coating (Black) Review: fixes any leak fast - works just like it is advertized. just spray the area you need fixed and it will be waterproof in a short time. great product and will buy again Review: works as intended - theres a lot in the small bottle, it sticks well, used it over screws for water proofing. i ordered black to match my item. drys quickly and no leaks so far ## Features - It’s an easy-to-use, portable, aerosol spray - Sprays out as a liquid and dries as a strong, rubberized coating - Stays flexible and pliable - Lightweight, portable and so easy to use - Available in three (3) colors ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07PNRRCTX | | Best Sellers Rank | #10,505 in Automotive ( See Top 100 in Automotive ) #32 in RV Sealants | | Brand | Flex Seal | | Brand Name | Flex Seal | | Color | Black | | Compatible Material | Rubber | | Customer Reviews | 4.0 out of 5 stars 323 Reviews | | Included Components | Item | | Item Dimensions | 5.25 x 1.75 x 1.75 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 | Liquid Rubber | | Item Weight | 3.2 ounces | | Item dimensions L x W x H | 5.25 x 1.75 x 1.75 inches | | Manufacturer | Swift Response, LLC | | Material | Plastic | | Material Type | Plastic | | Model | FSBLKMINI | | Number of Items | 1 | | Number of Packs | 1 | | Part Number | FSBLKMINI | | Style | Black, Mini, 2 oz, 1-Pack | | Style Name | Black, Mini, 2 oz, 1-Pack | | Surface Recommendation | Roof | | UPC | 852639008670 | | Unit Count | 1 Count | | Warranty Description | 1 Year Limited | | Water Resistance Level | Waterproof | ## Product Details - **Brand:** Flex Seal - **Item Weight:** 4 Ounces - **Item dimensions L x W x H:** 5.25 x 1.75 x 1.75 inches - **Material:** Plastic - **Style:** Black, Mini, 2 oz, 1-Pack ## Images ![Spray Rubber Sealant Coating, Waterproof, Black, 2 oz, 1-Pack - Image 1](https://m.media-amazon.com/images/I/81kyfvN8GmL.jpg) ## Questions & Answers **Q: What temperature requirements for flex seal to work** A: Flex Seal Spray can be applied to surface temperatures from 0Β°F to 100Β°F. Once it has fully cured, it is designed to withstand temperatures from -20Β°F to 140Β°F. Thank you for your interest in the Flex Seal Family of Products. **Q: Can this spray work on a hairline crack in my basement floor? And will it be slippery if it gets wet?** A: Flex Seal Spray is a fantastic product to fill cracks and holes with a liquid that dries into a watertight, durable, flexible coating. Due to its essential sealing qualities, we do not suggest it for underfoot applications because surfaces may become slippery when wet. **Q: Will it work to plug up a pin hole in a copper water pipe?** A: Yes, Flex Seal Spray will seal the hole, effectively blocking out water, air, and moisture. However, we do not recommend it for high-pressure applications. Message us with any other questions about our products. We're always happy to assist our customers! **Q: Can this be used on plastic on car where window washer goes?** A: Hi there! Flex Seal Liquid can be used on many surfaces such as concrete, glass, brick, stucco, masonry, wood, copper, plastic, tile, fabrics, wires, vinyl, fiberglass, ceramic, porcelain, metal, aluminum, natural stones, foam, asphalt, EIFS, TPO, PVC, EPDM, CSPE, Hypalon polyurethanes and much more. Please note that results may vary based on the specific type of plastic and application, so we recommend testing a small area if possible. If you could please send us a message with more information on your project, we're happy to help further. Until then, take care and Flex On! ## Customer Reviews ### ⭐⭐⭐⭐⭐ fixes any leak fast *by G***M on September 6, 2026* works just like it is advertized. just spray the area you need fixed and it will be waterproof in a short time. great product and will buy again ### ⭐⭐⭐⭐⭐ works as intended *by T***S on July 21, 2026* theres a lot in the small bottle, it sticks well, used it over screws for water proofing. i ordered black to match my item. drys quickly and no leaks so far ### ⭐⭐⭐⭐ beward *by H***K on August 3, 2026* a very small can for price,content is very small also. ## Frequently Bought Together - Flex Seal Mini, Black, Stop Leaks Instantly, Waterproof Rubber Spray On Sealant Coating, Travel Size, Perfect for Gutters, Wood, RV, Campers, Roof Repair, Skylights, Windows, and More - Flex Tape, Mini, Clear, Original Thick Flexible Rubberized Waterproof Tape - Seal and Patch Leaks, Works Underwater, Indoor Outdoor Projects - Home RV Roof Plumbing and Pool Repairs --- ## 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.jp/products/142309104-spray-rubber-sealant-coating-waterproof-black-2-oz-1-pack](https://www.desertcart.jp/products/142309104-spray-rubber-sealant-coating-waterproof-black-2-oz-1-pack) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-09-23*