Pattern bars and breakage

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lindam
Posts: 4
Joined: Mon Dec 15, 2003 9:29 am
Location: Wolverine Michigan

Pattern bars and breakage

Post by lindam »

Happy new year to All

My first attempt at fusing some pattern bar pieces into a flat piece ended up cracking around the edge. I made the pattern bar from glass blower scrap (which I was told was COE 96). Cut the pattern bar on a tile saw then arranged the pieces on a white 96 with some clear 96 between the bars for fill.

When I took it out of the kiln today I noticed a few cracks around the edge going towards the pattern bar pieces and was able to easily break it apart with my hand.

Any suggestions as to what might have went wrong?

Thanks in advance from the newbe in Northern Michigan

Linda M
Marty
Posts: 862
Joined: Mon Mar 10, 2003 3:58 pm
Location: Maine
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Post by Marty »

Your glass is incompatible. Those glass blowers start with a given COE glass but by the time you get it, it's no longer that COE.

Either test the stuff first or use a known fusing system like BE or Spectrum.

That crumbling thing is awesome.
lindam
Posts: 4
Joined: Mon Dec 15, 2003 9:29 am
Location: Wolverine Michigan

Post by lindam »

Thanks Marty

I figured it was an incompatability problem.
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