POR-15 40701 Rust Remover, 1. gallons

Used on restoration of two rust covered carbon steel pocket knives. At 12 hours it had stripped away the corrosion and loosened up the slip joints as well. Easy to follow directions. Easy cleanup.

This stuff is great! I had a bunch of rust on the inside of a trunk lid in areas that weren't easily accessible. I sealed the edges and poured almost the whole gallon in and waited. 8 hours later and almost all the rust was gone! You can see by the pictures a before and after of the same area. That last picture you can see the rust line that shows exactly where the solution was sitting and working before I had to rotate it. I can see how it would be expensive in large amounts if you are doing large panels but if you are restoring a car and want to keep most of the original metal then this is great stuff. A little bit of thought on how to contain the product is all you need for this stuff to go a long way.

I restore old trucks with parts that are obsolete (can't get them anymore) and fight corrosion daily. This works great soaked overnight aggitating the solution and parts periodically. Let soak overnight and the rust is dissolved

I love this stuff for soaking old rusty tools, to restore them. Great for restoring old Disston saw blades too. I've reused it a few times, but it doesn't get very many multiple uses before it's black and then coats your tools in a black coating too. It's hard to clean that off of smaller parts, but at least it still removes the rust at that stage. Weakens rapidly each time. Still, it really works great, especially on antiques, I just hoped to reuse it more than I did, for the $30 a gallon pricetag.

Worked as described