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Marlex® HHM 4903 High-Density Polyethylene (HDPE)

Large plastic drums cropped

Marlex® HHM 4903 high-density polyethylene (HDPE) is a high molecular weight, ethylene-hexene copolymer designed for demanding blow molded applications requiring excellent ESCR, good melt strength and durable performance.

Its enhanced resistance to stress cracking and attractive surface appearance support reliable performance in large containers and molded products subject to demanding use conditions.

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

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Properties 

PropertyTypical ValueTest Method
Density0.949 g/cm3ASTM D1505
Flow Rate (MI, 190°C/2.16 kg)0.29 g/10 minASTM D1238
ESCR (Condition B, 100% Igepal, F50)>500 hASTM D1693
Tensile Impact190 ft·lb/in2ASTM D1822
Flexural Modulus (Tangent)170,000 psiASTM D790

Nominal properties reported are typical of the product but do not reflect normal testing variance and therefore should not be used for specification purposes. Values are rounded. Physical properties were determined on compression molded specimens prepared in accordance with Procedure C of ASTM D4703, Annex A1.

Key Characteristics of Marlex® HHM 4903 HDPE 

  • Excellent ESCR 
  • Excellent surface appearance 
  • Good melt strength 
  • Durability 

 

These HDPE resin properties make Marlex® HHM 4903 PE a reliable choice for demanding blow molded polyethylene applications requiring durability and consistent processing.

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HDPE Resin for Blow Molded Parts and Containers

HDPE resins are engineered for both rigid and flexible processing methods. Marlex® HHM 4903 PE is optimized for blow molding applications.

Rigid Applications

Rigid — non-exhaustive list of applications:

  • Fuel containers
  • Stadium seats
  • Garbage cans
  • Large industrial containers

 

Blow Molding These applications benefit from Marlex® HHM 4903 PE’s ability to deliver excellent impact resistance, structural integrity and long-term performance in blow molded parts.

Contact our polyethylene specialists for processing support

Why Choose CPChem as Your HDPE Supplier

Proven Polyethylene Expertise

With decades of polyethylene manufacturing experience, CPChem delivers the consistent quality and proven performance that converters and brand owners depend on.

Proprietary MarTECH® Process

Our MarTECH® loop slurry process and advanced catalyst technologies deliver uniform molecular structure and consistent resin quality for dependable blow molding performance.

Technical Service and Support

Our experienced technical teams partner with customers to support application development, troubleshoot processing challenges, and optimize end-use performance.

Reliable Global Supply

Our global manufacturing footprint provides the consistent quality and dependable supply that converters and brand owners require to keep their operations running.

Commitment to Sustainability

Marlex® Anew™ Circular Polyethylene supports circular economy goals by enabling recycled content in demanding polyethylene applications.