We will be happy to help select the best material for your application. A thermoplastic material is any plastic material that can be melted and reformed while maintaining its original properties. This would be similar to melting candle wax. A thermoset material cannot be melted. Thermoset materials can withstand heats averaging 375 F, however, after this point the material will burn and deteriorate.
Thermoplastics are generally softer and easier to machine than thermosets.
Thermoset materials are characteristically harder and more durable.