Updated on: 2/16/2026
Engineering resins are one of two types of plastics commonly used in the injection molding process. Commodity resins (the other common type) are inexpensive and typically used in consumer products like toys, packaging, and food containers. Engineering resins are ideal for use in industrial applications because they are strong and highly resistant to temperature, corrosion, and wear. Engineering resins also have special thermal and mechanical properties that make them useful in replacing wood and metal to save on costs and/or weight.
Key Takeaways: A Guide to Our Engineering Resins
- Engineering resins provide stronger mechanical, thermal, and chemical performance than commodity resins, making them suitable for components that must withstand demanding operating conditions or replace heavier materials.
- Each resin family, such as POM, PBT, PET, PC, PEEK, PEI, PES/PSU, PPE, Nylon, PPS, TPE, and TPU, offers distinct advantages that support precise, durable, and application‑specific part design.
- Selecting the right engineering resin requires understanding how factors like heat resistance, dimensional stability, chemical exposure, and mechanical load influence long‑term performance.