Supco MO44 Rust Buster Liquid Penetrating Oil

Great product. Used it on the center assembly of our 11 year old washing machine. Unfortunately the locking nut had fused to the assembly below it. The Rust Buster liquid removed all the surface rust, but after six hours of pounding the wrench in the correct direction for this reverse-threaded nut, it would not separate, so I hacksawed it off. After that the repair was easy (though we never did fix the leak we were trying to get rid of, and wound up buying a new washer). At the end I was disappointed but realized the rust buster wasnt the problem - it actually made the whole assembly clean and rust free.

You can buy in the aerosol spray, but I find this works better as s soaker when you need to use judicially.

Good penetrating oil.

If there is any liquid that will work, it is this one! Must have very small molecules.

Specifically purchased to loosen a frozen screw in a handplane. After 8 or 10 tries I decided I was wasting my time. Took the plane outside and torched the snot out of the frozen screw which surrendered instantly.

This product didnt work for my situation. I went by the instructions and it didnt work.

I found a bottle of this sitting on an old boiler that I bought out of a house. I decided to use it on the corroded pipe fittings. Every one broke loose and I have been using this stuff ever since. Works best if you can tap or impact the joint after application. Does have a tendency to evaporate easily even when properly capped. Best to store in a secondary sealed container to minimize evaporation.

Works great!

Helped get a stuck shower-head loose. Good to keep a bottle in your toolbox.

But rust buster you could ever invest in.