Thanks in advance for any guidance on my question! I have a minimill 2 in my garage and finally made the move to work on my product line full time! The problem that i have is the coolant that I'm using is 100% biodegradable and I was recommended to use this coolant by a Haas tech. I was using Valcool but the small size of my garage and the mist from the
Valcool was not a good combination. I had sinus issues but after I switched to the new coolant my sinus problems went away but the machine table, vises started to have flash rusting. I have refractometer and know how to use it, everything is inline but I still have this problem. Is there a coolant that is non toxic, can be used in a tight environment and poses little to no risk to your health and does not cause rusting?