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macca

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  1. macca

    Waxing and dishwashers

    Apologies it is a 06 cone I'm using in a digital kiln. The bisque I'm using is purchaced from bisque direct as white unglazed earthernware that has been produced commercially. They advise glaze between 950c to 1050c. Is the clay vitrified when it is glazed or when it is first fired? I will do an absorbance test on an unglazed tile then I'll have my answer. I'm using kiln racks for the plates so they arn't contacting each other.
  2. macca

    Waxing and dishwashers

    Thanks for the information chaps you have been a great help, I will try the absorbency test. I am using Plate stacker so they won't be contacting each other. I am using a digital cone and holding at 990 degrees c as per the glaze instructions and it seems to be working well. I'll test the weights after my next fire and do the absorbency test. I'll repost with the results. Thanks again Macca
  3. macca

    Waxing and dishwashers

    I'm glazing bisque bought commercially which has been painted by people in my wife's mobile craft business. The Glaze is clear and quite thick so having no running issues. Firing to cone 6 with 20 min hold. So far have used Stilts and had to sand the sharp glaze points off the bottom however for plates this week not work as I need to stack them. I just plan to wax the ring they sit on to prevent glaze sticking to the kiln racks but will they still be dishwasher proof? The Glaze itself is very robust and dishwasher proof. Like Hulk states I have noted commercial plates have the ring at the bottom but wondered in the ring was coated with anything else after glazing?
  4. Hello, If I add wax to the bottom of bisque to prevent glaze sticking to kiln shelf rather than using a stilt, will this not leave the base porous therefore not dishwasher proof? Thinking for mugs and plates that have thin rim to sit on. Apologies in new to ceramic craft!
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