We covered many questions about this product, unfortunately, we came up short on answers:
http://forums.procooling.com/vbb/showthread.php?t=9662
and
http://forums.procooling.com/vbb/showthread.php?t=9726
In short, it contains:
Xanthan Gum, [CP Kelco: Keltrol-T &/or Keltrol-T622]
1-Dodecanol [Lauryl Alcohol]
1,2-Propanediol, [Propylene Glycol]
1,2,3-Propanetriol, [Glycerin]
and of course, water.
MSDS is available from the WBTA forums, along with conductivity test results, and an integrity test.