High fire glazes are typically fired at cone 9-10. Mid and high fire were historically used to achieve more muted, earthy colors. But glazes have continued to improve and now many different glaze characteristics can be achieved at each of the firing temperatures. High fire is not often used in electric kilns because it is harder on the kiln and takes so much more power. Therefore, few commercial glazes are available in High fire. These glazes are typically mixed to be used for dipping or spraying.
We’ve received many customer concerns about glazes freezing during shipping in cold weather. Luckily, most glazes can be thawed and mixed and still work properly. Please put a comment in your order if you would like us to hold your order until the weather has improved.