R12A Super Freeze AC re-charge - PeachParts Mercedes-Benz Forum

wikkedpissa · #1 08-14-2012, 07:47 AM

I have been banging my head against the wall thinking there has to be another way around doing a full 134 conversion. I found this stuff. Super-Freeze R12a. Has anyone heard of it and or used it? I don’t care if you think it is illegal or not, what I care about is has anyone used it and how has it worked for them? Thank you.
Super-Freeze R12a Refrigerant - Replacement for R-12 Freon Substitutes "30 lb Equivalent" - Super-Freeze - Wholesale Refrigerant Online

JamesDean · #2 08-14-2012, 11:46 AM

I've never used it.

I've used Envirosafe ES-12A, its in my 190E and it works pretty well.

tbomachines · #3 08-14-2012, 11:54 AM

Do a search for "freeze 12" on this site. Lots of folks with insight and experience on it...I don't know about this particular product but freeze 12 is a similar (if not identical, chemically) product that replaces r12.

JamesDean · #4 08-14-2012, 12:23 PM

Quote:

Originally Posted by tbomachines

Do a search for "freeze 12" on this site. Lots of folks with insight and experience on it...I don't know about this particular product but freeze 12 is a similar (if not identical, chemically) product that replaces r12.

I think Freeze12 is a R134A mixture of sorts..

Envirosafe ES-12A and this R12a are hydrocarbon type refrigerants.

alabbasi · #5 08-14-2012, 03:17 PM

Why not convert to R134a?

Don't you want to be able to go into any store to buy it or have any mechanic to be able to work on it?

TX76513 · #6 08-14-2012, 03:36 PM

Just so everyone knows again 12a will give better cooling atributes than 134. 12a is R290 (Propane) and R600 (Isobutane).

JohnM. · #7 08-15-2012, 02:57 AM

Quote:

Originally Posted by TX76513

Just so everyone knows again 12a will give better cooling atributes than 134. 12a is R290 (Propane) and R600 (Isobutane).

Good to know. Thanks.

Hip001 · #8 08-16-2012, 09:46 PM

I'm interested in this also! I had the 240 converted to 134a and it's cool at best! NOT EVEN CLOSE to cold enough to ride in comfort!!

Whiskeydan · #9 08-18-2012, 05:12 PM

R134 will work very well in a system designed for it. Most R12 to R134 conversions fail due to inadequate cooling at the condenser, improper oil, improper flush...

cullennewsom · #10 08-18-2012, 06:13 PM

Quote:

Originally Posted by TX76513

Just so everyone knows again 12a will give better cooling atributes than 134. 12a is R290 (Propane) and R600 (Isobutane).

Thanks.

wikkedpissa · #11 04-05-2013, 08:08 AM

Thank you all for the info! Very good stuff to know.

ps2cho · #12 04-05-2013, 11:10 AM

Or...you can spend all the time and money doing the terrible conversion when its STILL cheaper to go on craigslist and buy 3 cans of R12.

I have R134a and it sucks out here in Arizona. I am currently working towards a complete backconversion to R12.

So you know -- 12a is a flammable refrigerant. R12 is not.
From the EPA:

Quote:

What are HC-12a® and OZ-12®?
HC-12a® and OZ-12® brand hydrocarbon refrigerant blends are flammable refrigerants. Their primary components are hydrocarbons, which are flammable substances such as propane and butane. HC-12a® and OZ-12® are registered trademarks of OZ Technology, Inc. HC-12a® has been marketed since 1994. OZ-12® was a similar blend marketed until the introduction of HC-12a® . Both products have been reviewed by EPA under the Significant New Alternatives Policy (SNAP) program. More information about the SNAP program is available from the hotline listed at the top of this page.
Note that EPA refers to the chemical composition of HC-12a® as Hydrocarbon Blend B. EPA considers any substance with that chemical composition, no matter what its trade name is, to be Hydrocarbon Blend B and to have the same legal status that HC-12a® has.

In order to meet Department of Transportation requirements for shipping HC-12a® in six-ounce cans (DOT refers to these cans as DOT 2Q containers), OZ Technology reduced the vapor pressure of HC-12a® in June, 1998 by changing the composition. EPA does not consider this reformulated HC-12a® to be the same as Hydrocarbon Blend B. The reformulated HC-12a® has not been submitted for SNAP review, and thus cannot be marketed or used as a substitute for ozone-depleting substances.

http://www.epa.gov/ozone/snap/refrigerants/hc-12a.html

Volker · #13 04-05-2013, 07:02 PM

yeah just fill it with a little propane and it will be good

engatwork · #14 04-05-2013, 08:44 PM

The condensers on the w123 cars do not have enough capacity to cool effectively so r12 is the best. Lot's and lot's of threads regarding this subject. Lot's of different opinions and thoughts too. I've never thought about just trying propane but I don't see why it would not work. I drove w123 cars for years and finally resolved the a/c issue by going to the w124 cars.