I recently started doing dye-sublimation again and had an opportunity to try sublimating a piece of 1/4" thick Corian. Sometime in the past someone asked me if I had sublimated 1/4" Corian and what temp and time I used. In my first attempt a couple days ago I used 320 degrees F at 12 minutes. You can see the result is the first picture below.
I'm pleased with the results but I think I may be able to lower the time to ten minutes which is what I will do on my next attempt. I need to keep reducing the time until I find the saturation point where the Corian gets soft.
The second picture shows my new band saw sliding table I recently built, one of the tasks for this new slider is cutting Corian plaques to size after sublimating them. Since I can't use heat tape to secure the paper to the Corian I often have to trim the finished plaque to get is centered if it moves when placed in the press.