Another newbie failure - WarmGlass.com

Another newbie failure

This is the main board for discussing general techniques, tools, and processes for fusing, slumping, and related kiln-forming activities.

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Kaye
Posts: 15
Joined: Mon Jul 14, 2003 5:33 pm
Location: Camano Island, WA

Another newbie failure

Postby Kaye » Tue Feb 03, 2004 2:40 pm

What might cause pea-sized "pockmarks?" I successfully fused two 10" circles of black Bullseye with 3 dichro butterflies on top. I wanted to slump it into a bowl so thought I should clear cap it to protect the exposed dichro coating. The clear layer was Uroboros (90) and it fused beautifully around the edges of the piece and over the butterflies, but in between there are large areas of what I can only describe as large pockmarks. Lots of collapsed bubbles? (I would think if air were trapped it would have been around the butterflies which were slightly raised).

The overall surface is fairly smooth, so the thing isn't a total loss--if I can convince somebody that the craters are a design element!

Kaye

Geri Comstock
Posts: 340
Joined: Mon Mar 10, 2003 4:16 pm
Location: Northern CA
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Postby Geri Comstock » Tue Feb 03, 2004 4:20 pm

It's probably trapped air that formed bubbles that either popped or collapsed. Look in the archives for information on how to fire without trapping air.

Keywords to search for include "chads", "squeeze", "bubbles"

Good luck!

Geri


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