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Date:         Tue, 20 May 2003 00:28:04 -0700
Reply-To:     Mark Dorm <mark_hb@HOTMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Mark Dorm <mark_hb@HOTMAIL.COM>
Subject:      Re: Cost of Freon R12
Comments: To: kimbrennan@MAC.COM
Content-Type: text/plain; format=flowed

i ran into a shop in Florida, Broward County, that uses Freeze 12...

>From: Kim Brennan <kimbrennan@MAC.COM>

> >R12 is a "banned" substance now. I.E. you are supposed to stop using it >(older cars using it are grandfathered, but new cars can't use it.) > >R134a is the replacement for R12. Different formula of gases. Not as >effective in cooling, but if different evaporators are used, it can >still be pretty effective. > >Freeze 12, Duracool and other similar products are yet another >formulation of gases. Mostly based around propane and butane. However, >don't make the mistake that these are less or more flammable than other >freons. Given sufficient opportunity any of them can be made to burn. > >I've got Duracool in my GoldBrick. Works quite nicely. The major issues >are, that you must be careful to not let it get mixed with 134a (i.e. >if another shop services your vehicle they must know about it.) This is > >NOT< due to the flammability issue, but rather due to the PRESSURE >issue. Duracool and Freeze 12 can create much HIGHER pressures than >134a, and those higher pressures can damage equipment used for >recharging systems. > >Duracool or Freeze 12 having cooling properties similar to the original >R12 used in your Vanagon, and hence I feel are better choices. However, >few US shops use Duracool or Freeze 12 themselves (though it is legal >in many jurisdictions.) It is legal for use in Europe and Mexico I >believe. > > >On Wednesday, May 14, 2003, at 11:27 AM, John Rodgers wrote: > >>What are the >>differences between R12, Freeze 12, and the 134a??

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