<VV> A/C For 69 Corvair

Bill H. gojoe283 at yahoo.com
Tue Jul 13 15:59:13 EDT 2010


Bob:  I don't think this is a problem.  The ES12a (hydrocarbon gas) has a higher 
ignition temp than both R12 or R134a, and is non-toxic.  Also, it requires lower 
pressure on the A/C components and less horsepower from the engine to run the 

As I said, I ran it without problems in my other car, and I like the idea that 
it's non-corrosive when contacting moisture...Bill

From: "BobHelt at aol.com" <BobHelt at aol.com>
To: gojoe283 at yahoo.com; virtualvairs at corvair.org
Sent: Tue, July 13, 2010 3:08:01 PM
Subject: Re: <VV> A/C For 69 Corvair

In a message dated 7/13/2010 10:23:01 A.M. US Mountain Standard Time, 
gojoe283 at yahoo.com writes:
The ES12a is non-corrosive if it contacts moisture, therefore no 
>pull-down or vacuuming of the system is needed before charging.  It's legal as 
Isn't Envorosafe propane based? 

And wouldn't that be highly dangerous to use around spark ignition engines?

And wouldn't it be unsafe to use in Corvairs?

Bob Helt


More information about the VirtualVairs mailing list