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Material Selection: How Manufacturers Choose Plastics That Actually Work

USA Made Manufacturing

Release Date: 01/28/2026

Material selection is where many product decisions quietly go wrong.

In this episode, we walk through how manufacturers think about choosing plastics for real-world use. Instead of focusing on brand names or “best” materials, the conversation centers on application driven decisions like heat, impact, wear, chemicals, UV exposure, shrink rates, tooling constraints, and long-term production flexibility.

We break down common materials used in injection molding, including polypropylene, polyethylene, ABS, nylon, acetal, and glass-filled plastics, and explain why tradeoffs between strength, stiffness, flexibility, appearance, and cost matter more than hitting a perfect spec on paper.

This episode is for product founders, inventors, and operators who want to understand how material choices affect tooling, manufacturing risk, and future scalability—before those decisions are locked in.