What coolant do you guys use for your CNC machine?

[momospeedracer]

Its that time of the year to change coolant for me. I was wondering what kind of coolant brand/model you guys use on your machines and your comments/feedback it.

I am currently using Starbright... it has done it's job but my skin, eyes, and respiratory system get irritated from time to time due to the coolant.

[kling8]

I have had good luck with val cool, and poly cut coolant. We just get in 55 gal drums, and I mix it manually.

[mactec54]

momspeedracer

If you want the best with no skin, eye & respiratory problems you need to get GreenCut
it is 100% synthetic Biodegradable,Non-toxic fireproof & never needs to be changed just clean you tanks & reuse I can supply you with this PM me if you are interested

[pld0vr]

Using Alumet full synthetic since I only work with aluminum. works good.

[Jonsmachine]

We recently switched to Aqua Kool 21EP-5 by G-C Lubricants Co. It mixes well and works great (even smells good). Very happy.

[jjohnson]

Looking for price info on Castrol 9930 in 55gal.....Thanks for any help

[pjensen]

I had been using Rustlick WS-5050, which cut well but it really tended to go rancid quickly.

I just switched to Greencut about a month ago and like it much better. So far it cuts better and shows no signs of going rancid. A little puddle of it sitting in the overflow tank would have been smelling by now if it were the WS-5050. No such problems with Greencut.

Cheers,

-Peter