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I'm trying to fuse a 96 Coe 10x10 black base, small dichroic pieces in the middle, and a clear top. If I don't have some seams for air to escape, I get large raised bubbles. I really don't want seams to be apparent in finished piece. Any suggestions? My firing schedule is: 250 1150 45
250 1250 45
Full 1460 12
Full 960 60
150 700 0

Pictures? Not visualizing what you're after....

Sounds like you're sandwiching the dichro between the black and the clear, which is a recipe for bubbles.

Without photos, I'm guessing you could cap your 10x10 black sheet with a 10x10 clear sheet, then arrange your dichroic glass over the top. Fuse to your desired finish.

Sorry, I don't know how to resize my photo to upload it. Yes, I am sandwiching the dichro between the two layers. I've tried placing the dichro on top, but then the fused piece is not smooth on top.

Hope this works...

It's definitely not going to smooth out with the glass between layers!
I can't tell how thick your dichro is. You might try using thin dichro as your third-layer design elements and then take to a full fuse. I get flat, smooth surfaces when I do that. But I'm also not using a lot of glass volume as a third layer.

You could pre-fire your dichro on an oversized clear piece, taking it to a near-full fuse, then trim back to size, place on the black and fire again.

Thanks so much! Will definitely try thin dichro. What I'm using now is a mix of 1-3 mm. Sooooo much to learn for a newbie!

I would suggest you use 2 Firings (Hotter and longer holds) 1st firing dichro to black.. 1480F 20 min hold.... 2nd firing clear cap with chads.. 1480F 20 min. hold. should take care of bubbles!

Thanks for the help! Still experimenting with my new kiln