Low Fire and High Fire in Moulding Ceramic

In this segment you will find out which sort of fire methods fits your ceramic. Low Fire or High Fire? 

At some time you will choose to use low fire or high fire techniques, or like me, to integrate them. Often it will depend on where you got begun and what they utilized. Most popular ceramics studios low fire clay, and many colleges high fire clay. Low fire is cone 06-04 (see chart), whereas High Fire (or some call Mid to High Fire) is cone 5-10. The difference in between them is the temperature at which the clay develops “fuses” and glazes “melt.” For more technical details, see the info areas on the website.

Low fire is typically best for intense colors, and comprehensive design. The ceramic glazes are really stable at that temperature level, the colors remain intense and they don’t move during shooting. The disadvantage is that the pieces are not totally vitrified (the clay isn’t really totally merged) so you are depending on the glaze to make the piece waterproof. This makes them less ideal for tableware or items holding water. The glaze is most likely to chip since it hasn’t interacted with the clay as in high fire. Nevertheless, if the correct clay and glaze are used, it can be quite strong. The clay used for low fire is called Earthenware.

Mid to High fire utilizes clays that are called Stoneware or Porcelain.

Brilliant colors can still be gotten in oxidation kilns (electric kilns), less so in reduction kilns (gas kilns). Pieces are very strong, when fired to temperature the clay is water resistant on it’s own, and can be utilized for tableware and ovenware. Porcelain can be made extremely thin and still keep strength. Glazes at these temperatures interact with the clay bodies providing speckled, customized pieces that individuals many discover intriguing. The ceramic glaze typically moves a lot or a little so in-depth styles would get blurred.