What are the two basic fierings called and why are they different?*
What are the basic kinds of kilns and why are they different?**
What are some basic glaze firing techniques we can do here?***
* bisque - first fire cone 04 aprox. 1800 degrees F glaze - second fire for us cone 5-6 aprox 2100 degrees F
**kilns are either electric or fuel fired - they burn gas, wood, charcoal or other.
***One can get clay and glazes to use specifically at a variety of temperatures - see chart below low fire - often used in elementary school or bright colored table ware cone 04-02. mid range 3-6 ---this is where we normally fire - can use as dishes high fire 8-10. -- we can fire this hot in the gas kiln with specific clay for specific needs. Available for A.P. and continuing advanced students.
This is looking in a glaze kiln in process -- when it gets 'high yellow' the glaze is melted and the clay body gets 'soft' -- it can subtly change in form one of the reasons to fire lids on their base pots.