Hey... silicone. I haven't thought of that. Pourable, flexible and comes in different densities. Nice.
The shapes are formed with both heat and pressure. The shape of emblem you see in the pic above is unsupported. But, if it is pressed, it becomes mushy and distorted. Inserting the emblem is also a good idea too, but these are going in the area above the armrests where the perforated vinyl panel is in the door panels. This area has a concave shape to it so the emblem would stick out too far. Here'* what the new upholstery looks like so far:
I wanted to get perforated green vinyl and call it a day but I couldn't find any. Since it is plain, I figured I'd embelish it with the embossing. A solution may be fourthcoming though. I'm working on another "plate" that will produce recessed "L67" letters rather than raised. That way, I will just need to remove the foam backing where it makes contact with the backer board.