does anyone know what is the coefficient of coke bottles is?

Question

Interested in doing some fusing with a coke bottle

Answer 1

You will have to test. It should be pretty high, 106+ because of the fast setting time of bottle glass. Whether it will work with other bottle glass or window glass is something that will have to be tested with each glass. I just use cut up pieces together.
I recently fused grey 1/4" window glass onto clear 1/4" window glass and got strain cracks between those two.
and in checking, I see that both Bullseye and my own techspec page say bottle glass is in the low 80's