[Jewelry making - Article 00002] - Re: [Orchid] Removing enamel

[tom hollis]

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    Yes Phil, but it would be unwise (to put it politely) to attempt to
    do this unless you have the necessary training, skills, safety
    equipment and antidotes in place - and in Australia ( and probably
    New Zealand), the relevant "poisons license". . Hydrofluoric Acid is
    an extremely unforgiving material which attacks every system in the
    body but particularly the central nervous system, and is
    undetectable for some time in skin contact at lowish concentrations,
    meaning that by the time you start to feel the effects of a splash
    you are on your way to being very sick or maybe even dead all over. 

    There's plenty of interesting reading on the WWW from various health
    authorities about the stuff, which is used in a variety of industries
    on a day-to-day basis. Concentrations as low as 0.2% have caused
    neurological damage in young children exposed via aerosol mist to one
    of the very popular chrome-cleaning products available at auto shops
    - in the US that is - the product of the same name sold in Australia
    contains no Hydrofluoric acid. 

Allan Heywood

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