On 2009-05-09, Mike Henry wrote:
Igor,

I've been using Hangsterfer S500 for a couple of years now and the first
batch is still odor free and I've never aerated it. It's sitting in a
bucket, gradually evaporating the water off before disposal. I use it at
5% - I can give you a sample if you need enough to make up 5-gal or so of
diluted coolant. The stuff costs around $125 for 5 gallons so it's a good
idea to make sure you like it before you buy.

Mike, I am just about done pumping out the coolant, rinsing, rinsing
with Clorox, rinsing several times more etc. After another hour or so,
the lathe would be clean and totally dry inside and out.

So I am interested in getting something that would hold up for a few
years. I do not really mind paying a fair price for a gallon of
concentrate if it really is as good. Let me know and I can stop by
with some cash in hand to get that Hangsterfer stuff, a gallon or
however much you can sell.

i