Anybody got a recommendation for a good synthetic or semi-synthetic (expensive of course) water miscible cutting fluid?
My application is both ferrous (stainless 304) + non-ferrous (brass, nickel silver, aluminum bronze, various tin bronzes & aluminum 7075, 6061)
It's for flood cooling on a brother CNC TC-22A VMC.
I need a fluid that highly resists bacterial growth as the machine is inoperative for significant periods. I had considered GreenCut, but it I have been advised that it stains 7075. Any thoughts?