Can float glass be tack fused with Bullseye glass

[Flowers]

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

[flame n fuse]

You could try it with some transparent bullseye and inspect for stress using a computer screen and a polarizing filter.

[Flowers]

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?

[Enchanted Cobwebs]

My hubby is a fuser, he says no, just wont work

[flame n fuse]

   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

[Fluffstar]

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]