I went to Home Depot this weekend. I usually go to Lowes as it's way closer, but I happened to be near HD. While there I needed some Mapp gas. I find my way to the propane isle, yup, there it is, yellow can as usual, but...it doesn't say "Mapp" on the can. In small letters it says "Max Power Propylene". OK... saleman says It's Mapp, but Mapp is a registered trademark, so Bernzomatic makes it under this name. On the tag in the dispaly it says "Mapp replacement". It is the same price as Mapp, it must be Mapp, right? So, I buy a "fat boy" tank. While there I buy a self lighting Bernzomatic torch made for Mapp as the price was right and my old one stopped sparking. They make two torches, one has a brass tip. I questioned how that could be as Brass won't take the heat of Mapp. I bought the stainless steel one with a hose. I get it home, try it out. The torch doesn't deliver near the flame that my Turbo torch did, and it seemed to give no where near the heat. Could barely turn a half inch rod red. I then tried the Max Power Propylene in my Turbo torch. It did not heat steel nearly as fast as Mapp, and I could tell no where near as hot. So, I start doing some research. Propane burns at 3,450F, Max Power Propylene burns at 3,600F, Mapp burns at 5,301. That's a HUGE difference! I wish I were a lawyer. It just is not right that Bernzomatic can use a yellow can making you think it's generic Mapp, when in actuality the only way it's the same as Mapp is the price. Max Power Propylene is only 6% hotter than propane. Mapp gas is over 50% hotter. Max Power should be 6% more in price than propane, not 300%!!
Now I know how they can use a brass tipped torch, the low heat of Max Power Propylene won't hurt it a bit. I wouldn't be so ticked if they used an orange can...Grrrrr
Mind you, Bernzomatic is clever in their wording, it was a Home Depot tag that claimed it is a Mapp replacement. So....class action lawsuits! One for Bernzomatic using a yellow can, and one for HD for using the word Mapp. Bernzomatic is clever on their website, saying how they are doing the world a favor by creating this new gas, that the main ingredient of Mapp is being used to make plastic and there's not enough for Mapp. What a rip off!
Bottom line, if you need Mapp gas... get MAPP.
PS . The torch I got...I now know why the price was right. It's cheap junk! The first time I tried the button that keeps the flame on, it wouldn't shut off. I had to use my jackknife to pry the button back up.
<edit for spelling>
Last edited by Freddy
on Tue Oct 20, 2009 6:27 am, edited 2 times in total.