tack fusing with layers

For discussion of processes related to using Bullseye glass, including kilnforming and kilncasting, torchwork, blowing and stained glass.

tack fusing with layers

Postby lisarengel » Tue Oct 08, 2013 4:37 pm

I am tack fusing 3 layers of single ply (3mm) glass onto a full fused, 2 layer, 6mm background. Do I tack fuse each layer per firing or can I tack fuse all at the same time? I do not have a lot of experience, and especially not with tack fusing. Any firing schedule suggestions?
I work with BE glass.
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Re: tack fusing with layers

Postby charlie » Wed Oct 09, 2013 7:35 am

yes, you can tack all at once.

use a schedule for at least 2x the thickness. tack fuses take a lot longer to anneal, especially if there's sharp corners to the added pieces. it can take a schedule of 4x or 5x the thickness, so experimentation and examination under a polarizer would be good if possible.
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