I ran across a "deal" on a couple 5 gallon pails of this stuff. Sealed and unopened. Inspection Date 1992. (I paid the asking price, but it was pretty cheap.)
VV-C-846 A Amendment 1 Cutting Fluid
Mil-surplus. The guy who had it passed away last year from Covid, and his son is clearing out his salvage yard.
Right now I am trying to determine if it is old enough to contain banned cutting fluid additives. If it was a direct cutting oil I would suspect maybe, but its a water emulsion cutting fluid.
Its seems there are atleast 3 newer versions in this standard upto VV-C-846 D from around 2020.
The following is from the spec sheet for (B). Here are a couple excerpts I found that were of most interest to me.
Scope: This specification covers (depends on which document I open) covers three types of emulsifiable oils which, when diluted with water, are intended for use in metal-cutting operations.
Toxicity: The emulsifiable oils shall have no adverse effect on the health of personnel, in either concentrated or dilute form, when used for the intended purpose. Questions regarding to toxicity shall be referred by the procuring activity to the appropriate departmental medical service which will act as advisor to the procuring activity.
Intended use: Cutting fluids covered by this specification are intended for use as coolants and lubricants for metal cutting operations when diluted with water to approximately 5 percent by volume.
Ah! Here are the types:
6.1.1 Type I. Type I emulsifiable oil is intended for easily-machined metals such as copper, brass, cast iron, and aluminum.
6.1.2 Type II. Type II emulsifiable oil is intended for metals which are moderately easy to machine such as bronzes, low carbon steel, or annealed high carbon steel. This type of oil is not intended for use in the machining of aluminum or copper alloys where staining is objectionable.
6.1.3 Type III. Type III emulsifiable oil is intended for difficult-to-machine high alloys or stainless steels and titanium.
I run SC520 in all my CNC machines, but I've got some manual machines in the back with coolant systems as well. The PM1440 lathe, the SB1028F mill, and the 7x12 horizontal band saw. I've been trying to determine if I want to use this in any of these machines. Except for the band saw (which is currently full of 5% SC520 and distilled water) I have been running these machines dry or with hand applied cutting oils. Dripper, brush, oil can, etc.
I was wondering if any of you guys had direct experience with this cutting fluid that you would care to share.
