[Jewelry making - Article 00279] - Re: [Orchid] Soldering without using Oxygen

[Norman Kimes]

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    Peter adequately describes the basic differences of your choices. 
    One item I would add is that MAPP gas comes in disposable containers
    as well and is quite a bit hotter.  Additionally Prestolite has a
    torch which is suitable for many projects, repairs and new
    manufacture, which doesn't require oxygen.  It is also possible to
    modify the torch tip with tubing inserts to get pin point flames,
    however you also need to provide for additional combustion air.  This
    may be beyond your current expertise but it is an option. 

Norman 

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