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Marlex® HHM TR-418Q Medium-Density Polyethylene (MDPE)

Performance Pipe Employee Checking Pipe Gauge

Marlex® HHM TR-418Q medium-density polyethylene (MDPE) is a high-performance ethylene-hexene copolymer designed for demanding pressure pipe applications. It provides long-term hoop strength, outstanding resistance to slow crack growth, and built-in UV stabilization for outdoor performance in energy, oil field and industrial piping systems.

Building on decades of polyethylene manufacturing expertise, CPChem produces Marlex® MDPE resins using advanced catalyst technologies and stringent quality controls. This foundation delivers consistent resin quality and reliable pressure pipe performance across demanding service conditions.

Connect with our PE product experts 

Product Information
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Contacts

Kyle Miller

Polyethylene Sales | US & Canada

Americas

832-813-4372

Email

Nikki Dickerson

Polyethylene Sales | LATAM

Americas

Email

Chevron Phillips Chemical Company LP

General

Americas

+1-832-813-4100

Norman Chua

China Country Manager / North Asia Polymers Manager

Asia

Email

Jack Wee

South Asia Polymers Sales Managers

Asia

Email

Chevron Phillips Chemicals Asia Pte Ltd

Asia Region Polymer sales

Asia

Email

Low Wah Chye

ASEAN Polymers Sales Manager

Asia

Email

Chevron Phillips Chemicals International N.V.

Europe, Middle East, Africa

+32-0-2-689-12-11

John Van Gansberghe

Polymers Sales

Europe, Middle East, Africa

+32-0-2-689-12-43

Email

Properties 

PropertyTypical ValueTest Method
Melt Index (190°C/2.16 kg)0.20 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
PENT Slow Crack Growth>2,000 hASTM F1473

Key Characteristics of Marlex® HHM TR-418Q MDPE 

  • Good long-term hoop strength 
  • UV stabilizer for good outdoor storage life 
  • Outstanding resistance to slow crack growth 

 

These MDPE resin properties make Marlex® HHM TR-418Q 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 Pressure Pipe

MDPE resins are engineered for semi-rigid pressure pipe and infrastructure applications. Marlex® HHM TR-418Q MDPE is optimized for pressure pipe extrusion.

Pipe & Corrugated Extrusion

Non-exhaustive list of applications:

  • Energy piping systems
  • Oil field pipe
  • Industrial pipe

 

These applications benefit from Marlex® HHM TR-418Q MDPE’s ability to deliver long-term pressure resistance, slow crack growth performance, and dependable service life.

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 Technologies

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