slumpless in long island

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  • #10035
    lorin
    Participant

    Hi everyone. I was wondering if someone can offer a suggestion. I am trying to slump small 3 1/2″ dishes. They have about a 1″ drop. I have two layers. I fired according to the slump schedule for two layers and nada. So I went to a 3 layer schedule and refired and got only a tiny slope in the glass. Can anyone suggest a schedule to get these little suckers to slump and I don’t end up with a load of coasters? I’m sure they would be fine with a single layer but I really would like to layer them.

    Thanks for any help.

     

    #13084
    Anonymous
    Inactive

    There are several things that figure into figuring out the ideal slumping time and temp. Most signficant of these is the unsupported weight of the glass.  Large, thick, glass tends to slump faster than thinner, small pieces because there is more unsupported mass on which gravity can pull.

    Other things to consider:

    – different glass colors melt at slightly different temps

    – sharply angled molds take longer because as the glass gets closer to fitting the angles there is less unsupported glass left

    – thick glass in a small mold can be tough because there is no place for the glass to “fit” as it melts into the mold

    There’s no one right answer for small work.  When projects don’t slump as much as I want, I usually will bring my slumping temp up to 1250° F (677°C) and then, if it still doesn’t slump sufficiently, I start adding time.  You may have to peek while it is slumping so you know when to end the hold and start the cooling.



    Paul
    FusedGlass.Org
    Helios Kiln Glass Studio
    PaulTarlow.com

     

    #13085
    lorin
    Participant

    Thanks! I am going to try reslumping it and using your suggestions.

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