[Jewelry making - Article 00015] - Re: [Orchid] Casting investment inclusions & causes

[JAGMAN425]

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    Hi Kate, I don't disagree with you ...but what I must state is that
    there is a method to analyzing what is causing a particular defect in
    a casting... and your original statement which mentioned that you
    found a tiny pin hole on the surface of the casting and when you dug
    into this, you found investment. 

    Well, ... this is caused by an air pocket in the wax 99.99% of the
    time.... 

    Investment that has broken off while pouring will look different when
    analyzed... The other things that you mentioned in your email were
    also correct. 

    What I am trying to do when I reply to any email is to explain the
    reason why that Particular deffect happened  so that whomever has
    that particular problem will know what to look for. I believe I did
    exactly that in relationship to that specific problem. 

    I could also explain how to analyze all the different causes of
    defects in castings, But that was not my intent in that particular
    email. 

    Hope this helps to clarify my previous statements. Daniel Grandi  

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