The guys over at c-c use panel bond/alumabond or something like that. But most just use plywood. No crying over fucking up an $8 piece of wood.

What's c-c?

Corner-Carvers.

Aren't these things off the shelf at reasonable prices? Or do you want something you can regularly destroy and recreate for a hopefully lower price?

I watched a pro make some one off ground effects. They got some board insulation at HD and rough cut it and mounted it to the car, then cut and shaved it to what they wanted. After it was shaped it was removed and the glass guy made a mold then the part was made from the fiberglass mold. The hard part is the fasteners and the glass shrinks and they always had fitimet problems.

Thanks. This actually helps. I didn't know glass shrank. I really wanted a material to get the shape down that was easy to use. I only have really basic tools for shaping (a dremel).

Ben, The off the shelf units are either all show or $1600. One off and I'm out.

I took a look at corner carvers and they had some guys that have tried it before. I will go with the partical board for the splinter and make a glass over sheet metal diffuser.