Sometimes you have to see something in another forum to remind you that many people don't know how to do this process. This is a good read over at a Subaru forum...
http://forums.nasioc.com/forums/showthr ... ?t=1236593

Keep in mind, too, that you can usually add epoxy tint powders to most of these clear plastics for a truly custom "cast through" color that can be semi-transparent or opaque. Micro Mark also makes a very fast and easy to use molding putty version of their mold compounds. We use it in our wood restoration shops for fast, smaller molds.

wow! good post. Thats a pretty interesting thread.

Yeah, go figure, I just never thought about this subject when it comes to cars. We mold all kind of parts for furniture in our wood restoration shop. Rubber, plastic, low temp. casting metals, etc., lots of stuff can be done this way because of the wide variety of silicone molding materials available.
They did a good job in that post of covering the basics to make almost anything if you've got a part to copy.

Very good read!

I was a sculptor for a studio in the mid 90's sculpting mainly
toy figures for major toy companies. The originals/masters
we made takes several mold making processes: clay to wax,
then final master. And that thread brings back memories.
A very good reminder indeed...

Doesnt Urethane supply company sell plastic repair kits as well. Neat process. Can you mold a silverado rear tail light lens as well, or just small parts?

I've seen 3 dimensional molds made of just about anything. There's really no size limitations as long as you get a good copy and your final mold is stable for filling.