I have searched and read all the posts about anti-freeze but I did not read WHY the propylene glycol vers standard ethylene auto anti-freeze. Since I just survived 5 days with no power here in KY (not as bad as 2003) I am interested in understanding the difference as it applies to a glass laser tube. No chemists explanations just laymen terms please. My cooler has a plastic tank but I don’t know the polymer it’s made off and I replaced the rubber coolant lines supplied by the mfg with the reinforced plastic tubing found at any hardware store.
I use distilled water and really don’t have any issues with the setup except for humidity which during most days my central HVAC system takes care of.
So what’s the reason for propylene vs. ethylene glycol?