--- product_id: 39371716 title: "Flexx Sealer Permanent Leak Repair 3inX3ft FLEX LEAK SEALER" brand: "kool seal" price: "฿146" currency: THB in_stock: false reviews_count: 1 category: "Automotive Parts and Accessories" url: https://www.desertcart.co.th/products/39371716-flexx-sealer-permanent-leak-repair-3inx3ft-flex-leak-sealer store_origin: TH region: Thailand --- # Flexx Sealer Permanent Leak Repair 3inX3ft FLEX LEAK SEALER **Brand:** kool seal **Price:** ฿146 **Availability:** ❌ Out of Stock ## Quick Answers - **What is this?** Flexx Sealer Permanent Leak Repair 3inX3ft FLEX LEAK SEALER by kool seal - **How much does it cost?** ฿146 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/39371716-flexx-sealer-permanent-leak-repair-3inx3ft-flex-leak-sealer) ## Best For - kool seal enthusiasts ## Why This Product - Trusted kool seal brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description Flexx Sealerâ„ Permanent Leak RepairPermanent leak repair that bonds to any clean, dry surface. Seals cracks or rusted flashings, vent pipes, rain gutters, and downspouts. Stops leaks between shingles, roof seams and laps, soffits, and parapet walls. Use to seal around chimneys and skylights. One-step installation makes it fast and easy-to-apply. Easily shaped and molded to any surface. Bonds immediately, seals instantly with no curing time needed. Superior adhesion to most surfaces above or below grade (except siliconized materials). Remains flexible. Never hardens, cracks, peels, or shrinks. Stops leaks, rust, and corrosion. Mold and mildew resistant. Effectively use from -76 to 180 F. Nontoxic. Recommended for application over: Aged EPDM, aged hypalon, wood, concrete, fiberglass, aged asphalt, rolled roofing, built up roofing, spray urethane foam, masonry, stucco, and many other surfaces. Color: Gray. Lifetime limited warranty.No. 18100: 2 IN x 3´ clamshell packNo. 18115: 3 IN x 3´ clamshell packNo. 18125: 4 IN x 4´ clamshell packNo. 18150: 2 IN x 10´ rollNo. 18200: 4 IN x 12´ rollNo. 18225: 4 IN x 24´ roll ## Features - 1 EACH - ›See more product details ## Images ![Flexx Sealer Permanent Leak Repair 3inX3ft FLEX LEAK SEALER - Image 1](https://m.media-amazon.com/images/I/51tqzeRJ5tL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ I recommend this product to anyone that needs adhesive sealers *by H***R on Reviewed in the United States on August 28, 2014* I received this item on time and it is fresh also. I recommend this product to anyone that needs adhesive sealers. It is easy to use and not messy and I used this to hold my plastic stop for my car. I changed cars and had to pull it off the garage floor. I thought what am I going to use to make this thing stick like it did when new. I had this on hand already and this came to mind and I mean when they say it sticks now they mean now!! I just barely laid it down where I wanted it and it was not going anywhere!! I later had the car and ran over it a few times and it never budged. It will stick to about anything and I'm puzzled why there are no reviews on this product. Buy it; you’ll be glad you did. :) --- ## 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.th/products/39371716-flexx-sealer-permanent-leak-repair-3inx3ft-flex-leak-sealer](https://www.desertcart.co.th/products/39371716-flexx-sealer-permanent-leak-repair-3inx3ft-flex-leak-sealer) --- *Product available on Desertcart Thailand* *Store origin: TH* *Last updated: 2026-04-25*