I've used the same product for making parts for model cars. Good stuff. A tip for those that want to try this, go to the local Hobby Lobby. They carry Alumalite. Not necessarily the full line, namely the tan resin, tinting dyes, and 2 different types of mold making silicones, plus kits (large and small) that have all the supplies. For making knobs, I would suggest the small kit (about $30) for the average truck restorer. And to make it even more economical, go to their website and check out the weekly coupon. Most of the time, it will be a 40% off any 1 item in the store, which can save you some $$. There is also another product by the same company called Amazing Casting Resin and Amazing Mold Putty. A little easier to use, but the mold putty is better suited to 1 peice molds, and may not be good for making knobs.
