Resin casting lets you ... oil based and never dries out. Make sure you get one that specifically mentions being sulfur free or it will interfere with your silicone. You can use the clay to ...

For people who work with wheeled robots or RC vehicles, sooner or later one gets interested in making ... tips on how to get reliable results with simple materials. The casting material is cheap ...

many car body parts are made from a mold, and these are just a few examples. Initiating a business that specializes in making manufacturing molds for clients is not a hard business to establish.