WarmGlass.com

I'm using COE96. I'm going to be working on a project that may require up to 4 firings. I'm testing some small tiles and after the 3rd firing, I'm seeing some slight incompatibility between Oceanside clear, bronze, and light amber. I have not changed the firing schedule for any of the firings.

Do I need to adjust the schedule after the 2nd or 3rd firing or is this something that just happens to some colors?

Thanks for any information

Molly

it is heat work that is causing the chemistry of the glass to change.
I do not fire multiple firings. Do it in one firing and you won't have the problem.

What Kevin said.