Oxidating flame

17-Oct-2019 11:41

While their powers may vary, their temperaments do not.

oxidating flame-34

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Paper fiber exits the clay body (451F/253C), early on in the fire, similar to like wax burnoff that is before cone 032 will melt.

See examples dipping one fire greenware bowls in the pottery section Fire paperclay as normal to any temperature the base clay is compatible with.

Paperclays dont require bisque but if they are bisque fired then, bisque at least to cone to 04 or even 03- not so called cone 08 temprature some use. Bisque ware of of stoneware and porcelain paperclays that are low bisque underfired can be fragile.

Because there are variables beyond my control (clays, papers, water, mixing errors and etc) always pre test fire what you have before a big project. When properly balanced paperclays fired to maturity they are hard, water tight, and micro voids eventually fill in and seal up as kiln temperature increases. Many earthenwares can be fired way hotter than rated- up to cone 5- as paperclay if your kiln is accurate. The clay ingredients in the recipe need to be balanced too. One fire paperclay is a practical option because the greenware is durable enough to handle the ware, to dip briefly into wet glaze, and not deform.

No guarantee can be offered that 'alternative" commercial paperclays now on the market will meet the all the performance advantages of my high performance trademark P'Clay® brand only available from licensed manufacturers/distributors. Ventilation of Kiln During Fire An example of one of many designs for a ventilated portable indoor electric kiln. Risk of fracture is half what it is in a traditional clay. The greenware surface absorb enough water in the glaze to allow a decent layer of glaze to deposit on the surface.Reduction fire will also affect the maturing process... Packing and loading of the kilns is very important also.