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Old 10-11-2011, 05:08 PM   #1
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propane vs. MAPP torch


someone told me that it's better for a sweated copper joint to use propane than MAPP. is that true?

that sounds weird cause i've been successfully using MAPP for two years as it burns a hell of a lot hotter and gets the job done faster. e.g. i can sweat a 1/2" joint with MAPP in less than 10 sec whereas it takes almost a minute with propane.

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Old 10-11-2011, 05:12 PM   #2
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propane vs. MAPP torch


I'm a Mapp Man !
Try sweating a 1 1/2 " copper pipe with propane.
Its Ok if your paid by the hour. lol

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Old 10-11-2011, 05:49 PM   #3
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propane vs. MAPP torch


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Try sweating a 1 1/2 " copper pipe with propane.
did it before i discovered MAPP... would take about 5 min per joint...
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Old 10-11-2011, 06:48 PM   #4
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propane vs. MAPP torch


Use to use propane all the time. 1/2" thru 2"
Its the tip size that counts.
I prefer to use acetylene when I can tho
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Old 10-11-2011, 06:48 PM   #5
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propane vs. MAPP torch


yep, mapp for me.
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Old 10-11-2011, 07:19 PM   #6
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propane vs. MAPP torch


Mapp......and it smells so nice.....................................NOT
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Old 10-11-2011, 10:50 PM   #7
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propane vs. MAPP torch


MAPP for hard to reach places and acetylene for the big stuff.
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Old 10-12-2011, 05:43 AM   #8
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propane vs. MAPP torch


Mapp is no longer available----some patent holder BS.

Now you can get MAP but it is not as hot as the old MAPP.
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Old 10-12-2011, 10:44 AM   #9
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propane vs. MAPP torch


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Mapp is no longer available----some patent holder BS.

Now you can get MAP but it is not as hot as the old MAPP.

Learn something every day......

Would never have thought to look it up until now...

Quote:
MAPP gas is a trademarked name belonging to Petromont, previously to Dow, for a fuel gas based on a stabilized mixture of methylacetylene (propyne) and propadiene. The name comes from the original chemical composition: methylacetylene-propadiene propane. MAPP gas is also widely used as a generic name for UN 1060 stabilised methylacetylene-propadiene (unstabilised methylacetylene-propadiene is known as MAPD). MAPP gas is widely regarded as a safer and easier-to-use substitute for acetylene. In the spring of 2008, true MAPP gas production ended when production was discontinued at the only plant making it. Current products labeled ""MAPP" are in fact MAPP substitutes. These versions are stabilized liquefied petroleum gas (LPG) with high levels of propylene.

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