--- product_id: 14925335 title: "Devcon 50345 Metal Patch and Fill - 3 oz., Gray" brand: "devcon" price: "£11.46" currency: GBP in_stock: true reviews_count: 8 url: https://www.desertcart.co.uk/products/14925335-devcon-50345-metal-patch-and-fill-3-oz-gray store_origin: GB region: United Kingdom --- # Waterproof formula Heat resistant 40°F-400°F 125 PSI tensile strength Devcon 50345 Metal Patch and Fill - 3 oz., Gray **Brand:** devcon **Price:** £11.46 **Availability:** ✅ In Stock ## Summary > 🛠️ Fix it once, fix it like a pro—Devcon Metal Patch seals the deal! ## Quick Answers - **What is this?** Devcon 50345 Metal Patch and Fill - 3 oz., Gray by devcon - **How much does it cost?** £11.46 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/14925335-devcon-50345-metal-patch-and-fill-3-oz-gray) ## Best For - devcon enthusiasts ## Why This Product - Trusted devcon brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Heat-Resistant Hero:** Performs reliably in extreme temperatures from 40°F up to 400°F—perfect for engine and outdoor fixes. - • **Quick & Durable Patch:** Fast curing with a charcoal gray finish that holds strong for years, beating temporary fixes every time. - • **Ultimate Metal Savior:** Seamlessly repairs rusted, broken, or corroded metal surfaces with a waterproof formula. - • **Versatile Surface Fixer:** Ideal for gutters, grates, fencing, aluminum boats, and more—drill, sand, or paint after curing. - • **Built to Last Under Pressure:** Withstands oil, gasoline, and most chemicals while maintaining a strong 125 PSI bond. ## Overview Devcon 50345 Metal Patch and Fill is a professional-grade, waterproof metal repair paste that bonds with 125 PSI tensile strength. Resistant to oil, gasoline, and chemicals, it withstands temperatures from 40°F to 400°F. Perfect for patching rusted or broken metal surfaces like gutters, tanks, and aluminum boats, it cures to a durable charcoal gray finish that can be drilled, sanded, or painted for a seamless repair that lasts. ## Description Devcon Metal Patch and Fill repairs broken, rusted or corroded metal. Spread in a thin layer, this waterproof formula builds up worn surfaces and fixes gutter, grates, fencing, duct work, tanks, aluminum boats, etc. Resistant to oil, gasoline and most chemicals, this product is a flammable viscous paste with an aromatic solvent odor. Once fully cured, this product can be drilled, sanded or painted. Allow product to dry before sanding, and finish sanding and cleaning prior to priming or painting. A second coat can be applied after the first coat is completely dry. Not recommended for long term exposure to chemicals or solvents. Bonds all metals, glass, and ceramic with a tensile strength of 125 PSI. Temperature Range: 40°F to 400°F. Review: Excellent product, easy to use holds up great under most conditions. - I use this for patching holes in my diesel’s charge air cooler. Some call it an inner cooler. Very hot air flow flowing through the aluminum cooler to cool it before it’s shoved into the engine. Cracks in the very heavy aluminum tanks. I filled them easily with this product and it held up to the heat and the pressure from the turbo charger. Excellent for that type of repair and holds up long enough to get a more permanent repair done. In actuality, I’ve had this crack which was about 18 inches long. Repaired with this product for the last four years. I’m not even gonna bother welding yet. This stuff works that good. Review: Perfect for small jobs - I needed someway to fix an interior door latch which continuously fell off making the door almost unusuable. This contractor grade adhesive worked quickly to bind the two metal components together. Its been two weeks and so far it is still holding fast. Great stuff! ## Features - Waterproof formula repairs broken, rusted or corroded metal - Builds up worn surfaces and fixes gutters, grates, fencing, tanks, etc - Resistant to oil, gasoline and most chemicals - Dries to a charcoal gray color ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0000DI81G | | Best Sellers Rank | #68,480 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #248 in Wall Surface Repair Products | | Brand | Devcon | | Customer Reviews | 4.4 4.4 out of 5 stars (322) | | Date First Available | January 8, 2007 | | Item Weight | 2.1 ounces | | Item model number | 50345 | | Manufacturer | Devcon | | Manufacturer Part Number | 50345 | | Model | Devcon 50345 Metal Patch and Fill - 3 oz., Gray | | Product Dimensions | 4 x 2 x 2 inches | ## Images ![Devcon 50345 Metal Patch and Fill - 3 oz., Gray - Image 1](https://m.media-amazon.com/images/I/610o+Z7paTL.jpg) ## Questions & Answers **Q: I have big rust holes where metal meets the door seal on my outside fridge. would this be good for that? Anyone recommend a Rust Reformer putty maybe?** A: Doubtful, I have found that it is most useful filling small holes and other minor imperfections in metal applications. Hope this helpful. **Q: will it fill in a 5 inch depression banged into a metal door.depth of depression 1/8 inch.** A: I would give it a try, clean area of repair to bare metal. Layer it on, letting each layer harden. Sand it like bondo,in between layers. Then repeat till smooth. Should work fine. **Q: Would this work on holes in a pole barn then sanded and painted?** A: Depends on the material your project is made of. Even if it is metal, you can use other epoxy fillers to fill holes. If you are NOT going to repaint after application and the material is metal, then YES, this is the epoxy you need. You should look for a hardening plastic or possibly wood filler, and sand after application, and then paint the area to match. **Q: Is the finish smooth or rough? If used in a spring track, would the spring catch on it?** A: its a bit rough so you need to sand it down but its a tough to sand down. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Excellent product, easy to use holds up great under most conditions. *by T***Y on April 14, 2026* I use this for patching holes in my diesel’s charge air cooler. Some call it an inner cooler. Very hot air flow flowing through the aluminum cooler to cool it before it’s shoved into the engine. Cracks in the very heavy aluminum tanks. I filled them easily with this product and it held up to the heat and the pressure from the turbo charger. Excellent for that type of repair and holds up long enough to get a more permanent repair done. In actuality, I’ve had this crack which was about 18 inches long. Repaired with this product for the last four years. I’m not even gonna bother welding yet. This stuff works that good. ### ⭐⭐⭐⭐⭐ Perfect for small jobs *by G***R on May 18, 2024* I needed someway to fix an interior door latch which continuously fell off making the door almost unusuable. This contractor grade adhesive worked quickly to bind the two metal components together. Its been two weeks and so far it is still holding fast. Great stuff! ### ⭐⭐⭐⭐⭐ Good quality *by P***R on June 13, 2026* Great product, Great seller!!A+A+A+A+ ## Frequently Bought Together - Devcon 50345 Metal Patch and Fill - 3 oz., Gray - J-B Weld 8267 SteelStik Steel Reinforced Epoxy Putty Stick - 2 oz. - Permatex 25909 Liquid Metal Filler, 3.5 oz. --- ## 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.uk/products/14925335-devcon-50345-metal-patch-and-fill-3-oz-gray](https://www.desertcart.co.uk/products/14925335-devcon-50345-metal-patch-and-fill-3-oz-gray) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-08-10*