--- product_id: 3302941 title: "Rust-Oleum 265494 LeakSeal Flexible Rubber Coating Spray, 12 Ounce, Black, 12 Fl Oz" brand: "rust-oleum" price: "¥5852" currency: JPY in_stock: true category: "Rust Oleum" url: https://www.desertcart.jp/products/3302941-rust-oleum-265494-leakseal-flexible-rubber-coating-spray-12-ounce store_origin: JP region: Japan --- # Dries in 30 minutes Waterproof & weatherproof Flexible rubber sealant Rust-Oleum 265494 LeakSeal Flexible Rubber Coating Spray, 12 Ounce, Black, 12 Fl Oz **Brand:** rust-oleum **Price:** ¥5852 **Availability:** ✅ In Stock ## Summary > 🛡️ Seal it, forget it—ultimate leak protection in a spray! ## Quick Answers - **What is this?** Rust-Oleum 265494 LeakSeal Flexible Rubber Coating Spray, 12 Ounce, Black, 12 Fl Oz by rust-oleum - **How much does it cost?** ¥5852 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/3302941-rust-oleum-265494-leakseal-flexible-rubber-coating-spray-12-ounce) ## Best For - rust-oleum enthusiasts ## Why This Product - Trusted rust-oleum brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Matte Finish Ready:** Flat black finish that’s paintable with latex or oil-based paints for seamless blending - • **Durable Flexibility:** Rubber coating flexes with surface movement—no cracking or peeling - • **Fast-Dry Efficiency:** Touch dry in just 30 minutes—get back to your day faster - • **Instant Leak Defense:** Seals cracks & leaks on contact with advanced rubberized formula - • **Versatile Surface Master:** Works on gutters, roofs, masonry, PVC, and more for all-around protection ## Overview Rust-Oleum LeakSeal Flexible Rubber Coating Spray delivers a fast-drying, waterproof rubber barrier that seals leaks and cracks on multiple surfaces. Its flexible, durable formula prevents moisture penetration and corrosion, making it ideal for both interior and exterior repairs. Covering up to 8 sq. ft. per can, it dries to a matte finish that can be painted over, ensuring a professional, long-lasting fix for your home or workspace. ## Description Product Description Rust-Oleum LeakSeal Flexible Rubber Coating provides waterproof protection from moisture, rust and corrosion thanks to its advanced rubberized formula. With an easy to use spray on application, it quickly seals leaks and cracks while creating a water-tight barrier, making it perfect for a variety of fast repairs. Flexible sealant works well for fixing hard-to-reach and other problematic areas. From the Manufacturer Rust-Oleum Leak Seal is an easy to use, rubberized protective utility coating designed to fill and seal leaks and cracks. It provides a water-tight, flexible seal that prevents moisture penetration, rust, and corrosion. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B006ZRUKHK | | ASIN | B006ZRUKHK | | Age Range Description | Adult | | Best Sellers Rank | #110,648 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #355 in Hardware Sealers | | Brand Name | Rust-Oleum | | Color | Black | | Color Code | BLACK | | Container Type | container | | Coverage | 8 square feet | | Customer Reviews | 4.2 4.2 out of 5 stars (4,682) | | Date First Available | February 3, 2012 | | Department | Unisex-Adult | | Dry Time In Hours | 0.5 | | Finish Type | Matte | | Full Cure Time | 0.5 Hours | | Global Trade Identification Number | 00020066218744 | | Included Components | 12-Ounce Seal Spray | | Indoor Outdoor Usage | Outdoor | | Is Discontinued By Manufacturer | No | | Is Waterproof | True | | Item Form | Spray | | Item Type Name | LeakSeal Flexible Rubber Coating Spray | | Item Volume | 12 Fluid Ounces | | Item Weight | 454 Grams | | Item model number | 265494 | | Manufacturer | Rust-Oleum | | Manufacturer | Rust-Oleum | | Model Name | Stops Rust LeakSeal | | Model Number | 265494 | | Paint Type | Oil, Spray | | Part Number | 265494 | | Product Dimensions | 3.15 x 3.15 x 7.99 inches; 1 Pounds | | Size | 12 Ounce (Pack of 1) | | Special Features | special_feature | | Specific Uses For Product | tool | | Surface Recommendation | Masonry | | UPC | 020066218744 | | Unit Count | 12.0 Ounce | | Warranty Description | Satisfaction guaranteed. | | Water Resistance Level | Waterproof | ## Product Details - **Brand:** Rust-Oleum - **Color:** Black - **Finish Type:** Matte - **Item Volume:** 12 Fluid Ounces - **Paint Type:** Oil, Spray - **Size:** 12 Ounce (Pack of 1) - **Special Feature:** special_feature - **Specific Uses For Product:** tool - **Surface Recommendation:** Masonry - **Unit Count:** 12.0 Ounce ## Images ![Rust-Oleum 265494 LeakSeal Flexible Rubber Coating Spray, 12 Ounce, Black, 12 Fl Oz - Image 1](https://m.media-amazon.com/images/I/71GU8MgSltL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Questions & Answers **Q: How long is the drying time.sprayed the fish pond ( second time)when can I safely put the fish back into the pond?** A: It all depends on how thickly you applied it but 24 hours should do it. **Q: Someone complained that it came out in a stream, I need it to spray, to use on roof, does it spray? And how much coverage? And how warm does it need to be, if I take it from inside(warm) to outside(cold roof) ????** A: Like many of these kinds of products, you shake it first. The stream is fairly narrow - the kind you need to run along a seam or some similar application (not a fine spray like a window cleaner). Personally I like the Flex Seal a bit better as it applies a bit for thickly than the Rust-Oleum. Can remember the exact temp requirements but something above 50 degrees F. as I recall. One 11 oz can will do maybe 30 to 40 feet of metal seam, window trim, or related apps. Possibly a bit more if you move along quickly.I thought I'd add the note that for wider area applications (I've had leaking metal roof issues) you might want to try "Thru-the-Roof" which comes both in tubes and quart/one gallon cans. Then the liquid is applied by paint brush from the cans. This works best for large areas. **Q: Can this product be used to waterproof a tile/grout shower?** A: Yes. Have an upstairs 30" x 30" tile shower with fiberglass pan that started leaking (not from drain but from somewhere up the walls.) Could see leak from downstairs ceiling (opened up ceiling to find leak source and repair ceiling damage). No obvious cracks in tile grout or in the caulking where the tiles met the pan. The tile job is old and not high quality (previous owner). Sprayed a few thin coats of the clear sealant and the leak reduced. Ended up using two cans on walls in multiple coats to eliminate leak. Suggest washing/scrubbing walls with distilled vinegar and rinsing well before spraying to remove soap buildup so sealant will adhere to tile/grout better. Sealant went on like spray paint (did not experience any globs as noted in other comment). Keep the can moving before and after you press the nozzle to avoid uneven saturation. Cannot really see final coating over tile after drying. Maybe not suited for a high-gloss, fancy tile job but great for a standard bath tile where you are hoping to get more years of utility before a remodel. **Q: NOTHING will stick to my tub, even caulked by plumbers. Would this work?? I don't care what it looks like!** A: I am not sure about the glazed finish of a tub might not hold. Have used it on other smoothe finishes though and it has held. ## Frequently Bought Together - Rust-Oleum 265494 LeakSeal Flexible Rubber Coating Spray, 12 Ounce, Black, 12 Fl Oz - Men's Fleece-Lined Thinsulate Winter Leather Work Gloves, XXX-Large (Wells Lamont 1108), Saddletan - Ironclad Mens Work Gloves 360 CUT LEATHER IMPACT, Yellow, 3X-Large US --- ## 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/3302941-rust-oleum-265494-leakseal-flexible-rubber-coating-spray-12-ounce](https://www.desertcart.jp/products/3302941-rust-oleum-265494-leakseal-flexible-rubber-coating-spray-12-ounce) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-07-12*