I often read of someone using MAPP gas, instead of propane.

I searched MAPP gas on Wikipedia and learned that true MAPP gas went out of production in 2008.

Several substitutes are vended by various propane distributors; not true MAPP gas.


My question is, is there such a thing as MAPP-gas that comes in the little disposable cylinders just like propane ??

If so, will the same torch that fits on the propane also work with the MAPP ??


It is my understanding that MAPP/air acheives a substantially greater heat than propane; is this true ??


Does MAPP/air get hot enough to perform such chores as bending wrenches into special shapes ??


Many thanks.

 

Mapp gas will not get hot enough to bend steel you need oxygen / acetalene torch to do that.

 

Yes.

I don't think so.


YES!


I don't think so.

I wish I could be more definitive in my answers, but it's been quite a while since I've used mapp gas. I'm sure someone else will be able to help you better than me.

 

Yes.

yes the torch is the same


YES!


yes it will get hot enough you will just have to hold it there longer

 

Been there and done that the only problem is it does take a lot longer under the flame to achive red hot and able to bend the wrench. propane and Mapp cylinders are interchangable

 

Lots of difference in opinion here. While you may be able to interchange the heads between Mapp and Propane, the air/fuel mix or blend is different therefore, the results are different. I also don't know if the material that the o-rings are made out of is different or not, they could be. Use the Mapp head, it's the safe bet. I use Mapp and like it very much. It's especially useful when soldiering copper pipe when you can't keep the water away from the joint you're working on but be warned, that also makes it easy to over heat the pipe. You can use it to heat and bend wrenches and such (have examples) but while it's much better than Propane it's not nearly as good as an Oxy-Acetalene set-up. Mapp comes in the yellow containers.

 

Thanks everyone for the information.

I was hoping the convenient disposable-bottle MAPP would suffice for an occasional wrench bending or similar operation.

Although it may take quite a bit longer, I can afford the extra time easier than I can take such a project to someone else and then try to impress upon them just what it is I am trying to accomplish, then get back home with it and it need tweeking a bit more.


I am gonna fetch me a bottle and see how well it works out.




Thanks again.

 

I used mapp to bend small stuff before I got my Oxy-Acet setup. Now I would never go back, having a torch is great.

 

YES; it is.

I have a very good OXY-Acetylene torch kit; AIRPRO I think.

Alas, the monthly tank rental and hidden huge fees and charges that I think someone just sat around and dreamed up forced me to let the big tanks go.


I have been looking at a Tractor Supply deal where I actually buy/own the tanks, with no fees or rent, so long as I bring them back to TSC for refills.

It seems like maybe the best deal for the occasional user.


When I used to always keep the big tanks, they might sit over in the corner un-used for five months, then empty two tanks in two weeks on some project.


It sure is inconvenient to me now being without them.

 

Mapp gas is pretty good for small stuff, copper pipe water line... it gets hotter than propane by about 40%.

I'd drop the coin on oxy/acc if you are doing any metal working at all. Check out harbor freight, they have cheap garbage, but if you are using it 2x a year, it will be great.

 

I was in the same situation as you. Luckily I have a few good neighbors who own them and let me use their tanks if I need them. I just give em a $20 to help fill the tanks. Anymore my jobs are pretty small. I Don't build many implements these days.

Just be forewarned, If you own the tanks, you will be classified as a terrorist...

 

If you look hard, you may find another source. Up here, I get my tanks at Purity Cylinder Gases. They have quite a few locations in Mi. and a couple in In., If you call them, the may even know of a vendor close to you, or possibly somebody they might service.
Puritygas.com

 

I have always wondered about their tanks.

I see the prices for the various tank sizes, but have no idea what one would do when the tank needs filling.

Around here, all the various welding gas companies are EXTREMELY adamant against filling any tank that does not have their identification stamped around the bottle-neck.

Can someone enlighten me about the Harbor Freight tanks ??

Thanks.