[Jewelry making - Article 00049] - Re: [Orchid] What is Jewelry bombing?

[Colin]

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    Bombing should be completed in an extractor chamber with rubber
    gloves, although i have never used one in 30years bombing daily. 

    I use 1/2 teaspoon of cyanide to 1/2 litre hot water [almost boiling]
    and depending on the item/s add 2+1/2 to 3 mls of peroxide - always
    step away and NEVER inhale the fumes, i use an extractor hood on full
    speed - if a spill occures it must be well cleaned up. 

    For those well experienced in bombing that wish to perfect the
    results - after the initial complete bomb[s] try cooling the hot
    water/cyanide mix 'slightly' by adding a little cold water, then add
    approx 2mls of peroxide to the item[s] while moving the container
    fast in a circlular motion and then kill the reaction quickly by
    adding cold water before the chemical reaction gives a full bomb.This
    process may need to be completed several times and at reduced active
    times as you progress. 

    Once perfected you can obtain results that are quite outstanding - i
    have several local jewelers prefering to send me their bombing items
    instead of doing it themselves, also i often use this partial bombing
    system to rings and bracelets that have some plating used on them as
    it does not remove it. 

Regards;
colin

 
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