--- product_id: 19831200 title: "Mastercool 90935 Alum Bond Aluminum Repair Compound – High-Strength Aluminum-Filled Epoxy for Castings, Radiators, Tanks & Engine Components – Machinable Metal Repair Solution" price: "¥6905" currency: JPY in_stock: true reviews_count: 8 url: https://www.desertcart.jp/products/19831200-mastercool-90935-alum-bond-aluminum-repair-compound-high-strength-aluminum store_origin: JP region: Japan --- # Controlled working time for precision 8600 PSI compressive strength Machinable after curing Mastercool 90935 Alum Bond Aluminum Repair Compound – High-Strength Aluminum-Filled Epoxy for Castings, Radiators, Tanks & Engine Components – Machinable Metal Repair Solution **Price:** ¥6905 **Availability:** ✅ In Stock ## Summary > 🛠️ Fix it like a pro—strong, precise, and built to last! ## Quick Answers - **What is this?** Mastercool 90935 Alum Bond Aluminum Repair Compound – High-Strength Aluminum-Filled Epoxy for Castings, Radiators, Tanks & Engine Components – Machinable Metal Repair Solution - **How much does it cost?** ¥6905 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/19831200-mastercool-90935-alum-bond-aluminum-repair-compound-high-strength-aluminum) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Machinable Metal Repair:** Drill, sand, or tap after curing—restore parts without replacement. - • **Heat-Resistant Durability:** Endures up to 250°F, ideal for automotive and HVAC environments. - • **Industrial-Grade Strength:** Withstands up to 8600 PSI compressive force for repairs that last. - • **Vertical & Overhead Ready:** Non-sag formula stays put on any surface, no drip, no mess. - • **Precision Application Window:** Controlled working time lets you shape perfect repairs without rush. ## Overview Mastercool 90935 Alum Bond is a professional-grade, aluminum-filled epoxy designed for permanent, high-strength repairs on aluminum castings, radiators, engine components, and HVAC parts. It offers 8600 PSI compressive strength, machinability after curing, and a non-sag formula for versatile application, with heat resistance up to 250°F, making it the go-to solution for durable metal restoration. ## Description Buy Mastercool 90935 Alum Bond Aluminum Repair Compound – High-Strength Aluminum-Filled Epoxy for Castings, Radiators, Tanks & Engine Components – Machinable Metal Repair Solution: Metal Filled Epoxies - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: Quality product - This is a good product, I tested it against JB Weld and it adhered better and was stronger. I would expect that, since it is designed to seal high pressure refrigerant leaks, I was not disappointed. I used it to fill gaps, holes, and other flaws in my aluminum boat instead of having everything heli-arced, worked well. Review: Top notch stuff - I bought this as a hail Mary repair to the front cover of my 7.3 diesel engine. It's got a crack that isn't accessible to weld and replacing the part involves engine removal. The area is subject to 75 psi oil as well as high temperature.. this product was easy to mix and apply and it's working beautifully! ## Features - ✔ ALUMINUM-FILLED METAL REPAIR COMPOUND – Professional-grade aluminum-filled polymer designed to permanently repair cracks, blow holes, and casting imperfections in aluminum components including radiators, engine blocks, housings, tanks, and HVAC parts. - ✔ HIGH-STRENGTH INDUSTRIAL PERFORMANCE – Engineered for demanding repairs with approximately 8,600 PSI compressive strength and 3,500 PSI tensile strength, creating a durable repair capable of restoring damaged aluminum surfaces. - ✔ MACHINABLE AFTER CURING – Once fully cured, the repair compound can be drilled, sanded, tapped, or machined using standard metalworking tools, allowing technicians to restore functionality without replacing expensive components. - ✔ NON-SAG FORMULA FOR VERTICAL APPLICATIONS – Thick paste consistency allows Alum Bond to stay in place during application, making it ideal for filling cavities, blow holes, porosity, and irregular surfaces on vertical or overhead repairs. - ✔ HIGH TEMPERATURE RESISTANCE – Designed for automotive, HVAC, and industrial environments with temperature resistance up to 250°F (121°C) after full cure. - ✔ CONTROLLED WORKING TIME FOR PRECISE REPAIRS – Provides a practical working window depending on temperature conditions, allowing technicians time to properly apply and shape repairs before curing. - ✔ IDEAL FOR CASTING DEFECT AND SURFACE REPAIRS – Specifically designed for repairing aluminum castings, radiators, tanks, valves, pumps, engine blocks, and HVAC components where surface defects or porosity require permanent repair. - ✔ TRUSTED MASTERCOOL PROFESSIONAL QUALITY – Mastercool products are designed for professional technicians and supported by a trusted U.S.-based company known for reliable automotive and HVAC service tools. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00CDDA1OW | | Best Sellers Rank | #8,831 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #20 in Metal Filled Epoxies | | Brand | Mastercool | | Customer Reviews | 4.4 4.4 out of 5 stars (108) | | Date First Available | April 16, 2013 | | Item Weight | 0.45 ounces | | Item model number | 90935 | | Manufacturer | Mastercool | | Manufacturer Part Number | 90935 | | Model | 90935 | | Product Dimensions | 6 x 3 x 2 inches | | Special Features | High Concentration of Aluminum Particles, Maximum Strength, Durability, and Ease of Application | ## Images ![Mastercool 90935 Alum Bond Aluminum Repair Compound – High-Strength Aluminum-Filled Epoxy for Castings, Radiators, Tanks & Engine Components – Machinable Metal Repair Solution - Image 1](https://m.media-amazon.com/images/I/71m4+SPy3VL.jpg) ![Mastercool 90935 Alum Bond Aluminum Repair Compound – High-Strength Aluminum-Filled Epoxy for Castings, Radiators, Tanks & Engine Components – Machinable Metal Repair Solution - Image 2](https://m.media-amazon.com/images/I/81ednpLFSUL.jpg) ![Mastercool 90935 Alum Bond Aluminum Repair Compound – High-Strength Aluminum-Filled Epoxy for Castings, Radiators, Tanks & Engine Components – Machinable Metal Repair Solution - Image 3](https://m.media-amazon.com/images/I/81Ollky7ugL.jpg) ![Mastercool 90935 Alum Bond Aluminum Repair Compound – High-Strength Aluminum-Filled Epoxy for Castings, Radiators, Tanks & Engine Components – Machinable Metal Repair Solution - Image 4](https://m.media-amazon.com/images/I/81MadkOP-zL.jpg) ![Mastercool 90935 Alum Bond Aluminum Repair Compound – High-Strength Aluminum-Filled Epoxy for Castings, Radiators, Tanks & Engine Components – Machinable Metal Repair Solution - Image 5](https://m.media-amazon.com/images/I/81QhXcfMgUL.jpg) ## Questions & Answers **Q: Would this work on a evaporator? Need to seal a small leak** A: Yes it would . However, if your evaporator is leaking in one spot due to old age and corrosion, the rest is not far behind. Replace it. If you punctured the core and its in good shape then by all means. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Quality product *by D***R on July 1, 2026* This is a good product, I tested it against JB Weld and it adhered better and was stronger. I would expect that, since it is designed to seal high pressure refrigerant leaks, I was not disappointed. I used it to fill gaps, holes, and other flaws in my aluminum boat instead of having everything heli-arced, worked well. ### ⭐⭐⭐⭐⭐ Top notch stuff *by I***3 on August 20, 2026* I bought this as a hail Mary repair to the front cover of my 7.3 diesel engine. It's got a crack that isn't accessible to weld and replacing the part involves engine removal. The area is subject to 75 psi oil as well as high temperature.. this product was easy to mix and apply and it's working beautifully! ### ⭐⭐⭐⭐⭐ Great for aluminum repair *by A***R on August 14, 2026* I had a puncture in the side of my pontoon boat, on the underside of one of the logs. I applied this material and it stayed in place and bonded really well. ## Frequently Bought Together - MASTERCOOL 90935 A/C Repair Epoxy - J-B Weld 8267 SteelStik Steel Reinforced Epoxy Putty Stick - 2 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.jp/products/19831200-mastercool-90935-alum-bond-aluminum-repair-compound-high-strength-aluminum](https://www.desertcart.jp/products/19831200-mastercool-90935-alum-bond-aluminum-repair-compound-high-strength-aluminum) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-10-17*