Hi, I am looking for a rigid board that is around 2mm thick, 4' W x 8' H sheet, translucent board. Currently, I am printing graphics on Sihl 3747 Backlit Film and taping it to .020 PETG that has 3mm Milk Plexi behind it that goes into a 1/8" channel and then is backlit (see attached example of the tower and close-up of materials). Instead of printing onto a film, I want to directly print onto a rigid board. I would prefer something that is white-translucent so I do not need to use white ink. I have a catalog from Orbus, and they have a Translucent PVC that is 22mil thickness, I am wondering where they get that from.