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FrankB · 15th Oct 2021, 2:04 am

One of the DIY channels here had a great program on getting rusted parts loose.
Leah Bolden of YouTube "See Jane Drill" makes up her own penetrant using 50% acetone and 50% automatic transmission fluid- not the synthetic stuff. Shake up well, as they do not like to mix. They will separate after a while too. Shake up well before each use.
She claims that she has never had a rusted part she could not get loose with that in decades. I suggest mixing a small amount and capping the bottle it is in, as the acetone is likely to evaporate away.

15th Oct 2021, 2:04 am	#21
FrankB Heptode Join Date: Oct 2005 Location: Olympia, Washington, USA. Posts: 664	Re: Rusted in grub screw. One of the DIY channels here had a great program on getting rusted parts loose. Leah Bolden of YouTube "See Jane Drill" makes up her own penetrant using 50% acetone and 50% automatic transmission fluid- not the synthetic stuff. Shake up well, as they do not like to mix. They will separate after a while too. Shake up well before each use. She claims that she has never had a rusted part she could not get loose with that in decades. I suggest mixing a small amount and capping the bottle it is in, as the acetone is likely to evaporate away.