[Jewelry making - Article 00156] - Re: [Orchid] Using MAPP gas for silver work?

[James Binnion]

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>     and you may also see some of the other sheets from other
>     distributors. I did not see one which said what the problem was
>     with using copper, copper alloys or silver, just that they were not
>     compatible. I did not pursue as I do not use MAPP. 

    This refers to the piping the gas flows through. MAPP is modified
    acetylene. Both Acetylene and MAPP will form acetylides with certain
    metals. They are unstable compounds that can detonate if disturbed.
    It does not relate to the use of the gas in a torch to heat these
    metals. 

James Binnion
jbin AT mokume-gane.com
James Binnion Metal Arts
http://www.mokume-gane.com
360-756-6550
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