Supco MO44 Rust Buster Liquid Penetrating Oil

Works great!

I had two rusty hinges on a ramp for a trailer. I Used this on both. One hinge came loose in a matter of 15 minutes. The other hinge required several applications more and finally heat and a mallet to loosen the 2nd hinge. I was kinda impressed with the first hinge loosening up so quickly.

I used this to loosen some bike wheel spokes that resisted truing. It works well, well especially if you let it sit for a little time. The product is very thin, as a penetrating oil should be, and really gets into the threads (and everywhere else). The cap design is flimsy, and it doesnt fit well. The company should probably spend another 5 cents and get a cap that fits snugly.

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.

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.

Good penetrating oil.

Invaluable tool for rusted or corroded bolts

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

Had a rusted hose for a washing machine that I had to get off. It was in a very awkward spot in an old house. Nothing else was working. 15 min after applying and heating with a hair dryer the hose came right off!

Works like a charm on brass bushings and leaves them slightly lubricated without the chance of any build-up to occur like how it does with 3-in-1 oil