Polypropylene (PP) is a semi-crystalline thermoplastic material that is known for its high strength-to-weight ratio and offers excellent toughness, chemical resistance, and high performance in a thermoforming and corrosive environment. Polypropylene is suitable for contact with food products and has the ability to withstand contact with many common sterilization materials. Additional features include ease of processing, good electrical insulation, fatigue endurance, not slippery as other engineered products (such as HDPE/UHMW) and a very low water absorption rate.

Polypropylene - Semi-Crystalline Thermoplastic Material

Tough & High Strength-to-Weight Ratio

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Copolymer vs Hopolymer

Proteus Copolymer, known as PP-C, is a high-impact-resistant thermoplastic that offers the same excellent chemical and corrosion resistance as Homopolymer Polypropylene but with better resistance to cracking at low temperatures. It is FDA compliant, more formable, and no moisture absorption. Polypropylene Homopolymer, known as PP-H, resists most acids, alkalis, and solvents - chemical and corrosion-resistant. It is easy to fabricate, weld, or machine, and its dimensionally stable offering added rigidity especially in higher temperature ranges.

It also meets FDA 21CFR 177.1520 and USDA guidelines for use in federally inspected meat and poultry packing facilities.

Polypropylene Copolymer has a continuous use temperature range of -4° F (-20° C) to 176° F (80° C) and exhibits an increased impact strength at low temperatures. Polypropylene Homopolymer has a continuous use temperature of 32° F (0° C) to 212° F (100° C). 



  • High impact and abrasion resistance strength
  • Stress crack resistant
  • Excellent processability - formable and weldable
  • Meets food handling guidelines
  • High chemical and corrosion-resistant
  • Good electrical insulation properties
  • Low water absorption
  • FDA and 3-A Dairy Compliant

Applications of Polypropylene Homopolymer

  • Automotive
  • Bus and rail
  • Chemical processing & storage
  • Die-cutting
  • Food and beverage preparation and processing
  • Firefighting equipment
  • Gaskets and Seals
  • Machine Shops
  • Medical - orthotic & prosthetic applications
  • Metal finishing
  • Semiconductor and electronics
  • Sterilization trays
  • Tank construction
  • Valves and fittings