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PP vs PE: Key Differences, Benefits, and Industrial Applications

September 15, 2025

Polypropylene (PP) and Polyethylene (PE) are two of the most widely used thermoplastics, each offering specific strengths for different industries.

PP is characterized by a high melting point (up to 160°C), rigidity, and excellent chemical resistance. It is used in food containers, automotive parts, and medical devices where heat resistance and sterilization are essential.

PE, available in HDPE and LDPE forms, offers flexibility, moisture resistance, and cost-effectiveness. It is commonly found in bottles, bags, and protective films.

The difference lies in structure: PP has higher crystallinity, making it stronger and more rigid, while PE is softer and more adaptable.

At Gracy & Co. Polymers, we help clients decide between PP and PE, ensuring the selected polymer matches durability, cost, and sustainability goals. Our PP excels in reusable containers, while PE leads in flexible packaging applications.

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