What happened to Duracool? HC-12a?? $$$$

Matt Colie

Matt Colie

Well-known member
Aug 15, 2008
11,101
807
113
South East Michigan near DTW
Wow,

Tomorrow I am off to service the refrigeration on a clients boat. Years ago I got it going by changing it to HC-12a (brand uncertain but probably
Duracool). I know that his system may need more than a single can, so I went on-line shopping.....

10 to 14$US per can!! I can actually buy real Dupont R-12 for that much now.

Matt
--
Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
 
This is what I use with success
http://www.frostycool.com/FrostyCool-r12a-refrigerant-replacement-for-r-12-freon-substitutes-18-oz-equivalent-1-case-12x-cans/

bdub

On Tue, Sep 8, 2020 at 2:52 PM Matt Colie via Gmclist <

> Wow,
>
> Tomorrow I am off to service the refrigeration on a clients boat. Years
> ago I got it going by changing it to HC-12a (brand uncertain but probably
> Duracool). I know that his system may need more than a single can, so I
> went on-line shopping.....
>
> 10 to 14$US per can!! I can actually buy real Dupont R-12 for that much
> now.
>
> Matt
> --
> Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL,
> GMCES
> Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum
> Brakes with Applied Control Arms
> SE Michigan - Near DTW - Twixt A2 and Detroit
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
 
The cost has gone up because it is more popular now.

Don’t forget that you only need about 3 cans of Duracool vs. 6 cans on R-12.
So, its still 1/2 as expensive as R-12 and it works better.

You can find equivalent brands to Duracool for about 6 o 7 a can in case quantities.

Emery Stora
77 Kingsley
Frederick, CO

>
> Wow,
>
> Tomorrow I am off to service the refrigeration on a clients boat. Years ago I got it going by changing it to HC-12a (brand uncertain but probably
> Duracool). I know that his system may need more than a single can, so I went on-line shopping.....
>
> 10 to 14$US per can!! I can actually buy real Dupont R-12 for that much now.
>
> Matt
> --
> Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
 
Just ordered 12 6oz can. My Birch has R134 conversion and it has mostly leaked off in five years.

After i put a vacuum on it and find the leaks, How much Duracool should it take ?

--
Dave & Ellen Silva

1972 Revcon Olds 455, toro drive train. All Stock
 
3 cans max
Sometimes just a little less than 3 cans.

Emery Stora
77 Kingsley
Frederick CO

>
> Just ordered 12 6oz can. My Birch has R134 conversion and it has mostly leaked off in five years.
>
> After i put a vacuum on it and find the leaks, How much Duracool should it take ?
>
>
> --
> Dave & Ellen Silva
>
> 1972 Revcon Olds 455, toro drive train. All Stock
>
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
 
Dave:

If you can, you might be better off doing a nitrogen purge before pulling the vacuum and recharging the system.

I’ve always find it easier to “spray for bubbles” when looking for leaks.

My .02

Dolph

DE AD0LF

Wheeling, West Virginia

1977 26’ ex-PalmBeach
Howell EFI & EBL, Reaction Arms, Manny Transmission

“The Aluminum and Fiberglass Mistress”

|[ ]~~~[][ ][] \
"--OO--[]---O-"

>
> Just ordered 12 6oz can. My Birch has R134 conversion and it has mostly leaked off in five years.
>
> After i put a vacuum on it and find the leaks, How much Duracool should it take ?
>
>
> --
> Dave & Ellen Silva
>
> 1972 Revcon Olds 455, toro drive train. All Stock
>
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
 
I recently replaced all the O rings but after pulling a vacuum I found it would slowly leak down. I wanted to pressurize the system to check for leaks. I didn’t have a nitrogen tank so I used compressed air. I drained off all condensate from the tank and charged the air conditioner to 20 psi. I found my leak with soap bubbles but it was at the connection of the low pressure hose from my gauges. I tightened it with pliers and the leak stopped. Realizing that in addition to the air I also had introduced some moisture, I left the vacuum pump on all night. I then charged it and no more leaks

Emery Stora
77 Kingsley
Frederick CO

>
> Dave:
>
> If you can, you might be better off doing a nitrogen purge before pulling the vacuum and recharging the system.
>
> I’ve always find it easier to “spray for bubbles” when looking for leaks.
>
> My .02
>
>
> Dolph
>
> DE AD0LF
 
That sounds like a plan!

I get a kick out of watching the little puffs of moisture that the vacuum pump successfully drags out of even the best kept system.

No substitute for a good hard vacuum on a refrigeration system!

Dolph

DE AD0LF

Wheeling, West Virginia

1977 26’ ex-PalmBeach
Howell EFI & EBL, Reaction Arms, Manny Transmission

“The Aluminum and Fiberglass Mistress”

|[ ]~~~[][ ][] \
"--OO--[]---O-"

>
> I recently replaced all the O rings but after pulling a vacuum I found it would slowly leak down. I wanted to pressurize the system to check for leaks. I didn’t have a nitrogen tank so I used compressed air. I drained off all condensate from the tank and charged the air conditioner to 20 psi. I found my leak with soap bubbles but it was at the connection of the low pressure hose from my gauges. I tightened it with pliers and the leak stopped. Realizing that in addition to the air I also had introduced some moisture, I left the vacuum pump on all night. I then charged it and no more leaks
>
> Emery Stora
> 77 Kingsley
> Frederick CO
>

>>
>> Dave:
>>
>> If you can, you might be better off doing a nitrogen purge before pulling the vacuum and recharging the system.
>>
>> I’ve always find it easier to “spray for bubbles” when looking for leaks.
>>
>> My .02
>>
>>
>> Dolph
>>
>> DE AD0LF
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
 
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