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Marlex® HHM TR-392 Medium-Density Polyethylene (MDPE)

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Marlex® HHM TR-392 medium-density polyethylene (MDPE) is a high-performance ethylene-hexene copolymer engineered for demanding pipe and tubing applications requiring excellent tensile elongation, outstanding resistance to slow crack growth and very good thermal stability. Its mechanical profile supports long-term durability and flexibility in irrigation systems.

Leveraging decades of polyethylene manufacturing expertise, CPChem produces Marlex® MDPE resins using advanced catalyst systems and rigorous process controls. This approach delivers consistent molecular structure and predictable extrusion performance for long service life in MDPE piping applications.

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Properties 

PropertyTypical ValueTest Method
Melt Index (190°C/2.16 kg)0.16 g/10 minASTM D1238
HLMI (190°C/21.6 kg)20.0 g/10 minASTM D1238
Density0.939 g/cm3ASTM D1505
Flexural Modulus (2% Secant)90,000 psiASTM D790
Tensile Strength at Yield2,800 psiASTM D638
ESCR (Cond. B, 100% Igepal, F50)>1,000 hASTM D1693

Key Characteristics of Marlex® HHM TR-392 MDPE 

  • Excellent tensile elongation 
  • Outstanding resistance to slow crack growth 
  • Very good thermal stability 

 

These MDPE resin properties make Marlex® HHM TR-392 PE a dependable choice for pipe and tubing applications requiring durability and long-term performance.

Contact our technical service team for processing recommendations

MDPE Resin for Irrigation Tubing

MDPE resins are engineered to bridge the performance gap between HDPE strength and LLDPE flexibility. Marlex® HHM TR-392 MDPE is optimized for pipe and tubing extrusion applications.

Pipe & Corrugated Extrusion

Non-exhaustive list of applications:

  • Irrigation tubing
  • Irrigation tape

 

These applications benefit from Marlex® HHM TR-392 MDPE’s ability to resist slow crack growth, maintain flexibility, and deliver dependable performance under continuous stress and outdoor exposure.

Contact our polyethylene specialists for processing support

Why Choose CPChem as Your MDPE Supplier

Proven Polyethylene Leadership

Leading polyethylene producer with decades of polymer science expertise

Advanced Catalyst Systems

Advanced catalyst and process technologies for engineered MDPE performance

R&D and Technical Service

Dedicated R&D and technical service teams supporting pipe extrusion applications

Proven Pipe Performance

Reliable global supply from ISO 9001–certified manufacturing facilities

Innovation and Sustainability

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