[modeleng] Re: Cast Iron Coolant

> Jesse,
>
> I have so much oil in my cutting fluid that a layer of oil floats to the
top
> if I leave some in a bowl. I also have a workshop which is remarkably rust
> resistant. I was really surprised by this business.
>
> Regards, Barrie

Gee Barrie, I can't understand why the iron dust rusted then.  I never oil
my mill table and have never had any rust get on it except a couple of times
when I had been using perchloroethane as tapping or machining fluid.  That
of course removed all of the oil from the table surface and I had a reddish
cast develop overnight.  I usually use lard/sulphur cutting oil for milling
and threading, but also use oil emulsion coolant quite a bit.  Still no rust
has reared its ugly head except in the instance mentioned.  As I mostly work
in brass for my models, I need no coolant.

Jesse the redneck Tennessean

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