Mastercool 90935 Alum Bond Aluminum Repair Compound – High-Strength Aluminum-Filled Epoxy for Castings, Radiators, Tanks & Engine Components – Machinable Metal Repair Solution

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.

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!

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.

I needed to stop cracks in a boat trailer fender. This and some backing material has worked very well.

Sello la fuga de condenser...y volvió a funcionar!!!

This stuff worked GREAT!!! I had a leak in my minisplit condenser coil and this patched the hole. I let it set over night then pressurize the coil to 317 psi and it held for over an hour, passed my test.

It works as it should but seriously where the hell are your msds? May cause irritation is worthless information. Some of this stuff dripped directly into my eye (my fault for not wearing eye protection but it’s entirely the company’s fault I couldn’t find any information whatsoever on what to do. I rinsed for 15 minutes and am basically just hoping I don’t wake up with vision problems. I think I’ll just stick with steel stick in the future. At least that isn’t a drippy mess

Absolutely outstanding - plenty of working time, absolutely the right tool for the right job