Huge bubbles help? pls pls

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  • #9405
    amanda
    Participant

    Could anyone advise me on why all of a sudden I’m getting huge bubbles in my blank work. I have been trying to do blank for a mould. So I’m full/ fast fusing bullseye before the slump fuse. Done it loads of times before using the automated prog on the shutt firebox kiln.

    1 The base bullseye clear with top covered in bullseye coloured strips , no glue and in the centre of the kiln Nothing esle been fired. 2 Large bubbles of  3cm across.

    2 The base of clear bullseye with partial wavy coloured glass and frit with glue on top. Positioned on top side of kiln with other pieces alongside. 2 large centre bubbles of 6 cm across.

    Kiln wash looks ok and the kiln is clean.

    Re-tried no 2 piece of glass again with a full new piece of glass placed on the bottom on slow full fuse and the bubbles re-appeared at the same point.

    If anyone can help I would be very grateful as I can’t afford to keep wasting the glass.

    AmandaSurprised

    #11584
    Stephen Richard
    Participant

    Check your shelf for low spots.  It sounds like your shelf has developed one or more “warps” .  If the bubbles are always appearing above the same place on the shelf, it must be a shelf problem. 

    Stephen Richard

    blogs at: http://www.verrier-glass.blogspot.com/   and  http://www.glasstips.blogspot.com/

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