I sandblasted the wok, heated to 500 degrees, and sprayed on kiln wash. So far, so good.
But, when I slumped a 15" bowl to 1150 degrees it warped, and the resulting bowl is a bit off kilter. The wok was not warped before the slumping.
![Image](http://www.clearwaterglass.com/images/WokWarped.jpg)
This is a straight on shot of the kiln, and you can see that the top edge is no longer a perfect circle.
My questions are:
Did it warp because I left the handles on? Some differential in heating or mass or weight?
Can I "unwarp" it and get it to stay "unwarped"? Any ideas how?
I'm thinking that sandblasting, kilnwashing and slumping might have voided the warranty on this gourmet item....
![Confused :?](./images/smilies/icon_confused.gif)
Thanks.
Steve