[Jewelry making - Article 00209] - Re: [Orchid] Partially burned-out flasks

[Paul Finelt]

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    Good Advice regarding the kiln components. One more recommendation...
    when you get a new one or repair your existing unit you can check or
    calibrate the thermocouple and temperature indicator by setting the
    temperature to 212 F or 100 C waiting until the set temperature is
    reached and placing a metal pan or cup of water in the kiln. The
    water should boil within five to 10 minutes depending upon the wait
    out the water and pan. 

    Your flasks also need the handle differently. There are two schools
    of thought. One says you should soak the flasks in warm water for
    five to 10 minutes before placing them back in the oven. The other
    says, just place them back in the oven. In either case rerun the
    entire burnout cycle. The should minimize any cracking that might
    occur. In any event, handle the flasks carefully as they probably
    have not reached their full strength. In addition, you should be very
    careful, while casting these flasks. There's a chance that they are
    cracked and could run out. Don't be too disappointed. If these flasks
    exhibit significant flashing. 

    Hope that helps. Good Luck. 

Paul Finelt
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