Post #9182 by woofmutt on Wed, Sep 25, 2002 10:25 AM

From the glossary at digitalfire.com :

"(Crazing) is caused by a mismatch in the thermal expansions of glaze and body. A glaze of higher expansion shrinks more than the clay to which it is attached and therefore crazes."

My observations: The majority of my Tiki mugs don't seem to have crazing. Neither does the rest of my too many pieces of ceramic/pottery. What crazing is present is mostly in translucent glazes.

Crazing is often attributed to age but it can occur immediately after the firing and it's not always present even in very old pieces.

Although Tiki mugs were probably manufactured as throw away pieces I don't think the crazing is a sign of poor craftsmanship. A lot of the big name art pottery has crazing in it.

(I sound like an echo, but apparently Tiki King and I were posting at the same time.)

[ Edited by: woofmutt on 2002-09-25 10:27 ]