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Fusing and Stained Glass Tips and FAQ's => Float Glass => Topic started by: Flowers on February 22, 2017, 11:36:53 AM



Title: Can float glass be tack fused with Bullseye glass
Post by: Flowers on February 22, 2017, 11:36:53 AM
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


Title: Re: Can float glass be tack fused with Bullseye glass
Post by: flame n fuse on February 22, 2017, 12:19:35 PM
You could try it with some transparent bullseye and inspect for stress using a computer screen and a polarizing filter.


Title: Re: Can float glass be tack fused with Bullseye glass
Post by: Flowers on February 23, 2017, 11:31:35 AM
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?


Title: Re: Can float glass be tack fused with Bullseye glass
Post by: Enchanted Cobwebs on February 23, 2017, 12:19:29 PM
My hubby is a fuser, he says no, just wont work


Title: Re: Can float glass be tack fused with Bullseye glass
Post by: flame n fuse on February 24, 2017, 04:40:31 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


Title: Re: Can float glass be tack fused with Bullseye glass
Post by: Fluffstar on February 24, 2017, 07:47:18 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:

(https://i1.wp.com/www.practicalkat.com/wp-content/uploads/2016/06/IMG_3807.jpg?resize=500%2C500)

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

(https://i1.wp.com/www.practicalkat.com/wp-content/uploads/2016/06/IMG_3804.jpg?resize=500%2C500)

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


[edited to add BE pic]