[Jewelry making - Article 00496] - Re: [Orchid] Earring posts

[David L. Huffman]

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    As to the problem of earring posts breaking off . . . As stated by Ron
    at Mills Gems, it's better if you can get apost with a soldering pad
    at the base.  The problem is, when solder is molten, if it's moved
    the slightest bit while it's solidifying, the solder will crystalize
    giving you what's known as a "cold solder joint".  These are brittle
    and subject to cracking off.  If you are very steady holding the post
    as the solder freezes, or you have the whole thing set up so that it
    doesn't move, then you'll be fine most of the time.  The solder pads
    provide more surface contact, as well as stabilize the post
    preventing movement as it cools. 

David L. Huffman

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