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Mango Beads
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Author Topic: Can float glass be tack fused with Bullseye glass  (Read 1396 times)
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Flowers
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« on: February 22, 2017, 12:36:53 PM »

Hi  is it possible to tack fuse float glass onto Bullseye glass or would it still be incompatible I just wondered if the same problems would happen if the float glass is tack fused rather then fully fused into the glass.
Thank you
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flame n fuse
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« Reply #1 on: February 22, 2017, 01:19:35 PM »

You could try it with some transparent bullseye and inspect for stress using a computer screen and a polarizing filter.
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Flowers
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« Reply #2 on: February 23, 2017, 12:31:35 PM »

That is a very good idea I like the idea of using a computer screen and the polarising filter would it brave like a light box?
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Enchanted Cobwebs
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« Reply #3 on: February 23, 2017, 01:19:29 PM »

My hubby is a fuser, he says no, just wont work
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flame n fuse
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« Reply #4 on: February 24, 2017, 05:40:31 AM »

   I don't think a light box would work - the computer screen emits polarised light and you hold up the object you are testing in front of it, then hold a polarizing filter (sunglasses / camera filter)   in front and rotate and you can see the stress. I can't find a good link online, but this one shows how to do it with a phone screen     http://www.davebross.com/GlassTech/polariscope.html
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Fluffstar
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« Reply #5 on: February 24, 2017, 08:47:18 AM »

My gut instinct says no, it won't work.  

However if you want to test for stresses - I use two of these:
 http://www.ebay.co.uk/itm/Polarising-Polarised-Polarizer-Filter-Film-Gel-Sheet-Science-50x100mm-2lee-d-/262826326296?hash=item3d31ab7918:g:jmAAAOSwqu9VHDZ1

on top of a light box/light source.  A window would work fine if you don't have a light box.  Just hold one film behind and one in front, and rotate the top one 90 degrees.

Stress looks like this:



That's two chips of 104 fused to tekta - they cracked about three days after.  Compare to:



There are two chips under there, you just can't see 'em!  That's bullseye on top of bullseye.


[edited to add BE pic]

« Last Edit: February 24, 2017, 08:49:12 AM by Fluffstar » Logged

Kathy
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