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Hello !
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Devit on Fused Blue Bottle Glass
Once you start cutting up bottles and fusing them back together, youwill notice that blue bottle glass has a tendency to devitrify in a seemingly random way. Take this little star for example. Some of the glass pieces have fairly heavy devit and some have none. If you look closely you can see a batch number etched on one of the glossy strips. This gives us a clue about what may be happening. Batch numbers are always etched on the outside of bottles.
After a ton of testing, I discovered that when the blue glass is fired curved side up, that is, with the INSIDE of the bottle up, it is much more likely to devitrify. I tested with a ton of different blue bottles, as well as other colors. Here's a selection of the color tests:
The vertical glass on all tests was curved side up, the horizontal piece is curved side down. Although some of the other colors do have a very light devit, the cobalts are all quite frosted. (Visit the site for a large format zoomable version of this photo)
The easiest way to avoid this is to keep track of which side to fire up. It sounds like it would be a pain, but it does make a huge difference.
In a future newsletter, I'll run the same test again with different anti-devit sprays and solutions. If you have an overspray you like, please let me know and I'll include it in the test.
Other announcements and stuff:
Enamel labels on bottle list-
I'm still collecting images of successfully fused enamel labels on bottles for a compilation list. If you're willing to share a photo, that would be awesome! Just reply to this e-mail.
Wholesale/bulk purchasing application for artists, stores and distributors is now online. Read more about it here.
Orlando Florida November Glass Meet up? I'll be traveling in Florida in early November, if anyone is interested in hosting a meet and greet or Q & A, please reply to this message and let me know!
Fall Class Schedule - Salt Lake City Utah
I have Fused Glass Animal classes and a Kilnformed Bead class currently enrolling.
Fused Animal Pattern Books
I have nearly finished the first round of fused wire and glass animal patterns and they will ber available for purchase and download very soon. Like the Glass With a Past facebook page for instant updates.
Thanks for reading, and, as always, let me know if you have questions, I'm happy to help!
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