evfreek Posted March 12, 2009 Share Posted March 12, 2009 Hi. Recently I posted on how I was able to use some surplus oxy-acetylene cutting tips on an expedient basis by using one of those yellow disposable MAPP gas cans. This will burn quite well and also cut with the acetylene one piece tips. It will even weld a bit. No black threads but some black smoke. Anyway, I read that MAPP gas was being phased out, and noticed that the local Home Depot had stopped selling it. It was replaced by MAPP-pro, which is just propylene. At a recent trade show, I asked the Bernzomatic rep what is going on. He said that Worthington, the only supplier (from Petromont in Canada) is discontinuing production. When it is gone off the shelves, it is gone. And the MAPP-pro won't work with those one piece tips. Oh well, scratch off another for the frugal blacksmith. Maybe I can ebay those one piece tips when I run out of MAPP gas. The MAPP-pro has nearly (150F cooler) the flame temperature of MAPP, so it can be used in the rose petal work still. Quote Link to comment Share on other sites More sharing options...
Chris P Posted March 15, 2009 Share Posted March 15, 2009 This is sad to hear, I was just thinking of setting up a makeshift forge with MAPP gas to get me by till I had my coal forge up and running... Oh well, I guess MAPP-pro or propane will have to work now. :( Quote Link to comment Share on other sites More sharing options...
ironstash Posted March 15, 2009 Share Posted March 15, 2009 Maybe you should see if your local welding supply store has HPG (High Purity Gas). HPG has about the same temperatures as MAPP and is readily available at good welding suppliers. HPG is also used on cutting tables that are cutting stock 3/4" or thicker. I have used it in my propane forge and works great. Quote Link to comment Share on other sites More sharing options...
evfreek Posted March 16, 2009 Author Share Posted March 16, 2009 This is sad to hear, I was just thinking of setting up a makeshift forge with MAPP gas to get me by till I had my coal forge up and running... Oh well, I guess MAPP-pro or propane will have to work now. Hi Chris. Propane works just fine if the burner is sized correctly for the forge. It seems that MAPP is useful only when the bean can type designs are used, for which the typical hardware store torches are insufficient when fueled with propane. Quote Link to comment Share on other sites More sharing options...
fiddlefixer Posted March 19, 2009 Share Posted March 19, 2009 I do a lot of brazing on copper pipes! MAPP is great 2400 degrees! This is horrible news. By the time propane gets it hot enough the flux is usually almost gone! I'll have to go back to a small ac. tank Quote Link to comment Share on other sites More sharing options...
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