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Mapp Gas torch: Beware Soldering.

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Mapp Gas torch: Beware Soldering.

Postby byubuk » Fri May 13, 2011 7:14 am

FYI Guys and Gals. The Saturday before easter, I was working in my shop plumbing up for hot and cold water. I was using a bernzomatic torch with the mapp gas cylinder to make solder joints. With no warning, the connection port on the bottle, where it is friction welded to the bottle, failed, and released the entire contents. BIG FIRE BALL! I now know what napalm must feel like. I received 2nd degree burns to my arms, face and legs, and spent 10 days in the burn unit. Please be careful when using these devices, I do not wish this kind of pain on my worst enemy. I am fortunate to be making a speedy recovery, and will have little, if any scarring, but it is a painful process. PLEASE be careful. While laying in the hospital, I stumbles across this website that describes in detail the EXACT way the torch failed. It should me mandatory reading. http://www.bernzomaticinjuries.com
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Re: Mapp Gas torch: Beware Soldering.

Postby Abstinent » Mon May 16, 2011 4:30 pm

My God, is very terrible... pictures from link, horrendous too…
This burner bottle it’s unbelievable sloppy work, even deadly for user.
This connection port should be the TIG welded, not friction welded.
I know, what is large surface of skin burning, and how large is pain and suffering after burning, because when I was a very young, I had face and hands burned by liquid lead, during the casting.
Accept my condolences; your health return quickly and fully, I hope.
Do you try to get compensation from the manufacturer?
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Re: Mapp Gas torch: Beware Soldering.

Postby Buddy » Sat Feb 11, 2017 6:27 pm

Is this only with the MAPP gas cylinders or does the same problem exist with propane cylinders?
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Re: Mapp Gas torch: Beware Soldering.

Postby FullySilenced » Mon Feb 13, 2017 3:19 pm

@Buddy Look at the dates this is very old thread...

Mapp has all this corrected to the best of my info...


happy stillin,


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Re: Mapp Gas torch: Beware Soldering.

Postby S-Cackalacky » Tue Feb 14, 2017 8:28 am

Hey Buddy, you just had to raise this thread from the dead as I'm about to do some soldering - gee thanks.

Just kidding. I do remember reading about something similar to this over on HD. Someone (Rad maybe) had a cylinder of propane(?) erupt suddenly and dump all its gas. I think in his case it was because of a failure of the valve (rubber?) and no flame was involved. Apparently the seal around the valve can go bad over time.
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