Fabbing and fixing 4x4s is one of our passions, and usually that means dealing with iron or steel. And along with those materials comes the dreaded rust bug—the one that corrodes and gobbles up our rigs if we let it get away from us. But sometimes you have parts that aren’t rusted to the ground or that are simply so rare you need to save them. With all of the rust-removers on the market it’s a crapshoot to find what works when you need it, but we found one to love. Metal Rescue is a safe, biodegradable, aqueous (water-based) liquid that is simple and easy to use. The most important aspect is that you use it at temperatures over 68 degrees F, and believe us, temperature does make a difference.
We recently tested the Metal Rescue Rust Remover Bath on some old and crusty parts that rust had a good grip on. One was a corroded exhaust pipe abortion that was firmly screwed together, the other a mainshaft and gears from a special low-geared T-90 Jeep transmission that had been sitting unprotected for years in the SoCal desert. Both had so much rust that nothing could be done other than hitting the scrap barrel from 10 paces.
Metal Rescue is super-simple to use: Just submerge, wait, rinse, and dry! Results depend on rust depth, temperature, and impurities. We suggest scrapping any heavy, loose deposits and removing any oil or grease. After that, a warm bath of the stuff and you are on your way to rescuing your metal as the iron oxide is eaten away!