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Materials Guide
Mineral Filled Polypropylene
Mineral-Filled Polypropylene is a reinforced thermoplastic that offers added strength, rigidity, and heat resistance. It’s ideal for automotive, industrial, and structural applications requiring lightweight durability.
What is Mineral-Filled Polypropylene
Polypropylene is naturally lightweight and chemically resistant but has limited stiffness and heat tolerance. By incorporating mineral fillers, the material gains added rigidity, reduced shrinkage, and improved thermal performance – all while remaining cost-effective.
Common Applications
Mineral-filled polypropylene is used in:
- Automotive interior and under-the-hood parts
- Appliance Mineral-Filled polypropylene housings and components
- Industrial equipment and enclosures
- Rigid packaging and structural parts
- Profiles requiring enhanced stiffness at a low cost
Fun Fact: Talc-filled polypropylene is so common in the automotive industry that many dashboards and interior trim parts you see daily are made from it.
Important Considerations
Benefits
- Increased stiffness and dimensional stability
- Improved heat resistance compared to unmodified Polypropylene
- Cost-effective alternative to higher-end engineering plastics
- Excellent chemical resistance
- Lower shrinkage and warpage in molded or extruded parts
Limitations
- Reduced impact strength compared to pure polypropylene
- Heavier than unfilled grades
- Surface finish can be less smooth depending on filler type
- Limited UV resistance without additives
Custom Mineral-Filled Polypropylene Extrusion with Engineered Profiles
At Engineered Profiles, we engineer mineral-filled polypropylene extrusions that maximize strength, stability, and cost efficiency. Our expertise in compound selection and precision extrusion ensures you get reliable, high-performance profiles tailored to your exact requirements.
Download the Mineral-Filled Polypropylene infosheet
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