On 03/25/2019 02:47 PM, Marshland Engineering wrote:
Just spent 2-3 years wondering why I kept getting sick so often and sometimes
coughing for 3-4 hours a day. (I'm a non smoker and otherwise healthy) I spent
most of the weekend machining aly blocks with coolant splashing all over the
place on a knee mill and on Sunday night felt really sick. Finally the penny
dropped, it is the coolant in the air I was breathing in that was the cause.
The realization only came as I was doing 2 x 8 hour days machining which
exacerbated the problem.
Is this flood or mist? I've heard of this problem with mist
coolant, but rarely with flood.
Yes, you really don't want to breathe oil mist, and I guess
bacteria and mold spraying around is not good, either.
I tried a few coolants for flood. First was Tri-Cool, which
constantly grew stuff and was a real problem. Then, I got a
gallon of Encool-9 concentrate, which was recommended by
them for the mix of materials and work I do. It can sit for
MONTHS before it shows growth very slightly.
I was very impressed with it. This is from Engineered
Lubricants, a local outfit in Missouri, US.
I kind of doubt it is available in NZ, though. I don't get
any detectable coolant in the air when I use this stuff in
flood mode.
Jon
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