Yeah, this piece was 1/2" thick and 24x36 so it was pretty heavy. I also had the sweepy an inch or so off the surface to prevent possible suction pulling it up.
I do have a scrap to experiment on since I messed up the first $80 (plus shipping) chunk. Hoping I can salvage that for another project where the back won’t be visible.
This is the post I made on that final project.
@chckblier Colorcore is good, I like the look and the durability. Just spend some time doing experimentation to find what works for you.