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Firing one layer with ...

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Firing one layer with ...

Postby cwb-bdb » Thu Nov 09, 2017 5:06 am

Is it possible to fire say a single layer of (White 113) 3mm with design of a flower made from various glass colors placed on top?
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Re: Firing one layer with ...

Postby jestersbaubles » Thu Nov 09, 2017 7:23 pm

Anything's possible ;)

If the design will not cover the entire white background, then you will want to be careful not to fire too hot. The old saying is, "glass wants to be 1/4" thick", and if allowed to flow (get hot enough), it will try to achieve that state by dog-boning on the edges, holes in the glass where it is not 2 layers, etc.

Dana W.
Dana Worley Fused Glass Designs
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Re: Firing one layer with ...

Postby cwb-bdb » Fri Nov 10, 2017 3:18 am

Thank you for your reply.
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Re: Firing one layer with ...

Postby marykaynitchie » Fri Nov 10, 2017 9:27 am

Also, if you do decide to tack fire at a lower than full fusing temperature, to avoid dog-boning, your piece will be of uneven thickness. Based on the thickest part of the piece before firing, anneal twice as long as you would if the piece were of an even thickness throughout.

For instance, if the base is 3mm thick, and you have flowers made of thin glass (2mm thick) and frit balls on top of that (4mm?) that adds up to 9mm thick. Use the annealing schedule for a slab twice that thickness (=18mm).

If you use a faster annealing schedule, your piece is in danger of breaking as it cools down.

Good luck with your project!

Mary Kay
Mary Kay Nitchie
Bullseye Glass Co.

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Re: Firing one layer with ...

Postby cwb-bdb » Fri Nov 10, 2017 11:23 am

Again, thank you so much for your advice.
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