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Posted by Tony on August 12, 2007, 12:44 pm
Looking back in early 70s and perhaps even late 60s
they had rods available for aluminum not brazing but soldering
however it did not work to well on all type of aluminum
on some type of grade it work very well on other it
would not, yes they have made some improvingment
but for field brazing is still to be desire, I have found
that in some cases epoxy works just is good or better however
every body is entitled to their own opinion and experience
Tony
www.cas-environ.com
> During the copper crunch in early 80's - CARRIER in all of their wisdom
> came out with aluminum coils and several repair kits. [Westinghouse also
> had aluminum coils as well]. One of the kits was a braze rod. We were
> taught how to braze first using soda cans, then attacked coils.
>
> And by we I mean me and the mouse in my poket ;-)
>
> Zyp
>
>> wrote:
>>
>>>
>>>> Nifty stuff !
>>>>
>>>> http://www.durafix.com/index.html
>>>>
>>>> Watch the video
>>>>
>>>>
>>>> --
>>>> Click here every day to feed an animal that needs you today !!!
>>>> http://www.theanimalrescuesite.com/
>>>>
>>>> Paul ( pjm @ pobox . com ) - remove spaces to email me.
>>>
>>>In the 80's we had tons of alum coils leak, especially at the old A&P,
>>>Kroger's and Pic N Pay supermarkets where the coils were 15 to 20 feet
>>>long,
>>>even the Hussmann had problems. There wasn't anything to fix them, at
>>>least
>>>anything that lasted. We would call in welders and they wouldn't do the
>>>job!
>>>Then an epoxy came out that you put on the leak and heated it. It would
>>>last
>>>two months before you lost 150 pounds of R-502, which was expensive and
>>>was
>>>called Purple gold in our area.
>>>This stuff looks pretty easy, Paul. I have an alum coil leaking at a
>>>restaurant that isn't due to acid from food but probably vibration, and
>>>if
>>>I can get to it I may try it for them. Thanks
>>>
>>>Rich
>>>
>>
>> If you poke around long enough, you see that they say it will
>> braze AL to CU, too.
>>
>> I figure if they can braze-seal a gapping hole in a Coke can (
>> sorry - no Coke - Pepsi ) without melting it, they can fix holes in
>> AL tubing.
>>
>>
>> --
>> Click here every day to feed an animal that needs you today !!!
>> http://www.theanimalrescuesite.com/
>>
>> Paul ( pjm @ pobox . com ) - remove spaces to email me
>> 'Some days, it's just not worth chewing through the restraints.'
>> 'With sufficient thrust, pigs fly just fine.'
>> HVAC/R program for Palm PDA's
>> Free demo now available online http://pmilligan.net/palm/
>
>
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