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Marlex® 9045 High-Density Polyethylene (HDPE)

boy plays with toys

Marlex® 9045 high-density polyethylene (HDPE) is an injection molding grade engineered for thin-wall and lightweight rigid applications that require efficient mold filling, good stiffness and dependable part performance. It delivers a combination of high flow, balanced toughness and chemical resistance, making it well suited for thin-wall food containers, housewares, toys and structural foam applications when used with appropriate foaming agents.

Designed for high-speed manufacturing environments, Marlex® 9045 PE supports short cycle times, consistent part geometry and repeatable quality across high-volume production runs. Its flow characteristics enable the molding of complex and thin sections while maintaining the rigidity needed for everyday consumer and industrial use.

Produced using CPChem’s proprietary MarTECH® loop slurry process and advanced catalyst technologies, Marlex® HDPE resins provide uniform molecular structure, efficient processing and dependable performance across injection molding platforms.

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Properties 

PropertyTypical ValueTest Method
Melt Index (190°C/2.16 kg)45.0 g/10 minASTM D1238
Density0.950 g/cm3ASTM D1505
Impact Strength (Notched Izod)0.7 ft·lbf/inASTM D256
Flexural Modulus (1% Secant)146,000 psiASTM D790
Tensile Strength at Yield3,500 psiASTM D638

Key Characteristics of Marlex® 9045 HDPE 

  • Excellent flow 
  • Good impact strength 
  • Good stiffness 

 

These HDPE resin properties make Marlex® 9045 PE a versatile choice for thin-wall and lightweight injection molded polyethylene applications requiring efficiency, stiffness and consistent molded performance.

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HDPE Resin for Injection Molding

HDPE resins are engineered for both rigid and flexible processing methods. Marlex® 9045 PE is optimized for rigid injection molding applications.

Rigid Applications

Non-exhaustive list of applications:

  • Thin-wall food containers
  • Toys and housewares
  • Structural foam (with proper foaming agent)

 

These applications benefit from Marlex® 9045 PE’s ability to flow efficiently, maintain part geometry and deliver consistent molded quality across high-volume production.

Contact our polyethylene specialists for processing support

Why Choose CPChem as Your HDPE Supplier

Proven Polyethylene Leadership

A leading HDPE producer since the 1950s with deep polymer science expertise

Broad Polyethylene Portfolio

Broad HDPE portfolio spanning multiple processing technologies and performance ranges

R&D and Technical Service

World-class R&D and technical service teams supporting application development

Reliable Global Supply

Reliable global supply from ISO 9001–certified manufacturing facilities

Commitment to Sustainability

Commitment to innovation and sustainability, including Marlex® Anew Circular Polyethylene