Most polymers may be used for molds including all thermoplastics, some thermosets, and some elastomers. There are thousands of different materials available for injection molds and that number is increasing every year. The materials can be mixed with alloys or blends of previously developed materials. This allows you to choose from a variety of materials to obtain exactly the right properties for the injection molded part or parts that are needed. Mold materials are selected based upon the strength and function required for the final part. Each material has different parameters for molding that must be considered. Common polymers like Epoxy and phenolic are examples of thermosetting plastics while nylon, polyethylene, and polystyrene are thermoplastic.

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