I’m in contact with the coolant supplier to establish the brix multiplier for there semi and fully synthetic coolants that I use
For now I’ve mixed up a control batch at 5% and measured this on the refractometer and got a brix reading for it. When checking the coolant in the mill which felt a bit thick it was some three times the brix reading on the control sample
Water with a small amount of concentrate was added until I got to the same brix reading
It now feels right so all good until I get the official data from the coolant supplier

Thanks for you input from another Cnc’er in st Anne’s
Cheers paul


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