Overmolding: Substrate + TPE/TPU layer on top

• Soft touch grips
• Seals and gaskets
• Handle grips

Insert molding: Metal/plastic insert placed in mold before injection

• Threaded inserts
• Electrical contacts
• Hinges and latches

Full guide: https://www.mfgabc.com/guides/overmolding-insert-molding.html

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