Cheap USP (food grade) glycol source?
 

I have been poking around the internets looking for good prices on glycol, but so far I've come up short.

I'm going to need about 2 gallons (~16 lbs) to mix up the solution I'll need, and so far the best prices I've found put that in the $70-$80 range shipped. I have seen some "cheaper" prices on ebay, but when you take shipping into account they are more expensive.


Anyone have some better ideas?

Enter "Brewer" and they give 20% off on gallons. So that's $55 or so for 2 gallons. http://www.chemworld.com/ChemWorld-Propylene-Glycol-p/chemworld-pg-1.htm