Molds are made of thermoplastics and thermosetting plastics, which are two different types of polymers. Here is a thorough guide to the differences
Thermoset vs. Thermoplastic: Which is Right for My Product?
Discuss the differences between thermoplastics and thermosetting plast
Thermosetting Plastics Definition - Difference Between Thermoplastic & Thermosetting Plastic
The Difference Between Thermoplastic and Thermosetting Plastic - Osborne Industries
Difference between Thermoplastic and Thermosetting polymer, class 12
Difference Between Thermoplastic and Thermoset
Thermoplastic and Thermosetting Plastic - Uses and Examples
Difference Between Thermoplastic and Thermosetting Plastics
F) Difference Between Thermoplastics & Thermo-Setting Plastics