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post #11 of 13
The only time I would consider using propylene glycol or ethylene glycol is with a mix of metal in the loop. If you have any aluminum in the loop then you need some anti-corrosion properties in the coolant. Distilled h2o and a boicide with preventive maintenance is hard to beat.
post #12 of 13
Quote:
Originally Posted by ZytheEKS View Post

Car coolant has excessive corrosion inhibitors, and lots of either propylene glycol or ethylene glycol with ethanol to both decrease it's freezing temperature and increase it's boiling temperature.

Ao, when was the last time you read the MSDS for any of the Propylene Glycol coolants? Never found any ethanol in the product in the past two decades. Anyone who knows about PG understands that when any alcohol is present, the PG coolant mixture breaks down and is useless. So the info you are stating is bunk.

MSDS per EPA and OSHA/NFPA regulatory requirements:
http://www.sueschauls.com/Sierra_Antifreeze_MSDS_propylene_base.pdf

The PG does not contain any chemical components with known CAS numbers that exceeded the DeMinimis levels. Ethanol has a CAS number and exceeds the DeMinimis levels greatly.

So the info you are stating is bunk full of mis-information.
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post #13 of 13
Quote:
Originally Posted by bmaverick View Post

Ao, when was the last time you read the MSDS for any of the Propylene Glycol coolants? Never found any ethanol in the product in the past two decades. Anyone who knows about PG understands that when any alcohol is present, the PG coolant mixture breaks down and is useless. So the info you are stating is bunk.

MSDS per EPA and OSHA/NFPA regulatory requirements:
http://www.sueschauls.com/Sierra_Antifreeze_MSDS_propylene_base.pdf

The PG does not contain any chemical components with known CAS numbers that exceeded the DeMinimis levels. Ethanol has a CAS number and exceeds the DeMinimis levels greatly.

So the info you are stating is bunk full of mis-information.

I was actually referring to ethanol being in ethylene glycol. It's binds to the same enzymes as EG does, lowing EGs toxicity.
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