John: Could you give us the name brands of the products for which you have an interest? Polymer means a large molecule linked in repeating structural units usually linked by covalent chemical bonds.
I believe it's just Sculpey or something like that from Michael's. Maybe their in house brand. I don't have the packaging anymore. Just learning. For making miniatures like wargaming type.
Try searching on PF by Sculpey. I don't use it much myself, but you should get some amazing examples of it. I use air dry 2 part epoxies myself. Sculpey is heat set or heat dried at low oven heat for about 15 minutes.