Penetrating fluid

[Mace Canute]

Wd40 works pretty good when I am cutting aluminum.

That and using it to clean lathe ways and mill tables.

 

[DFB]

I use lots of WD often. A couple of gallon containers and a refillable spray bottle has gone a long, long way for me over the years. Never usually as rust dissolving penetrant but when a light a lubricant is needed and most often for oil and grease...wipe down motor parts, clean up funnels and drain pans, my shop tables and most all my tools when needed including cordless.

 

[PROFarms]

Thought I'd let y'all know. Tried every penetrating fluid and method y'all told me on here and nothing worked. Ended up having to grind the plate off, that had the link arm bolted to. Then using oxy-acetelyn torch I heated the ball and hit beat the crap out of that p.o.s ball joint and it finally moved. That worked!!