DIY Ultra Sonic Cleaner: Secure a palm sander to the can of cleaner. (tape, bungee cord, inner tube band, etc.)
Hang the can with a string from your work bench to provide maximum vibration. Keep the lid on.
some of the newer gallon paint cans are all plastic now. Most are going with at least a plastic bottom.
so keep an eye out for one that could replace the factory tin coated can.
I have a 40 year old sharpening stone that has been used with oil . . . has not been used in 30 years
and wanted to remove the gunk . . . well, a few days soaking in Parts Cleaner worked quite well.
After several good rinses, boiled it in Dawn dish soap and more gunk came out.
Now, it is like new, BUT – it stinks to High Heaven like the parts cleaner !!! It is hanging on the clothes line
with a string hoping that time will eliminate the lingering stink. I will be using water this time as the lubricant – not oil.
* and according to my nose, Pinesol stinks just as bad as the parts cleaner – so I don’t use it. (anywhere).