Recipe of the day: DIYSwede's Drilling & Tapping paste

[DIYSwede]

Thanks Moldyjim!
The now non-obtainable (at least for me - think it was from US DoD) research report,
did some extensive comparisons between commercial tap fluids, pure lard oil as well as bacon fat.
I seem to remember the quantified criteria was Tool torque, Thread surface finish & Tool wear.

The base line was white lead/ carbon tet - which still will make the very best thread, low torque and tool wear -
but is now for darned good reasons forbidden.
If the carbon tet won't get you terminal liver/ kidney failure and/or affect your CNS -
https://echa.europa.eu/substance-inf...fo/100.000.239
the white lead poisoning will probably get you: https://en.wikipedia.org/wiki/Lead_poisoning

Now- (I might be mistaken, of course) but the very result/ discussion that instantly caught this Cheapo's eye,
was the very good results for lard oil & bacon fat compared to commercial fluids,
where the bacon fat had superior properties to pure lard oil in gummy or "difficult" materials.

Discussion went along the following "logic" (if memory serves me right):
1) Dissolved sulfur in nearly any lubricant fluid will improve all three criteria above. Proved within study.
2) Lard oil doesn't contain any sulfur additives. Proved.
3) Bacon fat make cuts (somewhat or much - depending on material) better than pure lard oil does. Proved.
Now the bit of free-wheeling logic of Confirmation Bias:
-Hence the (natural or chemical) smoke additives of bacon, fried, should contain sulfur in the fat residues.
Discussion then went somewhat astray devising tests for that hypothesis.
Really bugs me that neither can I find the FOI act on this, nor remember which gov-lab did it and when.

Having had a bit of formal logic, epistemology and theory of Science myself, I'll (humbly - as ever) refrain from grading this,
BUT their proven results was good enuff for me, Bacon Fat works in tests, just like in my shop -
weak explanations, faulty logic, complacent researchers or not.
THEN - and here my Inner, sub-conscious Cheapskate hollers: -Its free!

Well - you don't have to agree with me on this, don't have to try it instead of that branded stuff you might have.
I don't particularly need "convincing testimonials from happy customers", marketing quotes or claims, or more Academic Strife.
I just try to share, as I think not everyone here have yet realized that reading MSDSs, lab research studies or PhD theses "is pretty sexy".
-Ah, yes: -English isn't even my native language, so please forgive my spelling and grammar.