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Marlex® HMN TR-945 - HMN TR-945G Polyethylene (HDPE)

Employees working at CPChem Cedar Bayou

Marlex® HMN TR-945 high-density polyethylene (HDPE) is a high‑modulus rotational molding grade engineered for large, thick‑section parts that demand exceptional structural stiffness, toughness and long‑term durability. It provides a strong balance of mechanical strength and environmental resistance, making it well suited for large storage tanks, ductwork and other high‑modulus rotationally molded components.

Designed for demanding rotational molding environments, Marlex® HMN TR-945 PE supports uniform wall thickness, reliable powder flow and consistent part quality in large hollow parts. Its high‑modulus profile enables manufacturers to produce components that maintain shape, rigidity and performance under prolonged loading and challenging service conditions.

Produced using CPChem’s proprietary MarTECH® loop slurry process and advanced catalyst technologies, Marlex® HDPE resins deliver uniform molecular structure, consistent powder quality and dependable performance for rotational molding applications.

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Properties 

PropertyTypical ValueTest Method
Melt Index (190°C/2.16 kg)6.0 g/10 minASTM D1238
Density0.945 g/cm3ASTM D1505
ARM Impact, 1/8″ (−40°C)68 ft·lbARM Impact
ARM Impact, 1/4″ (−40°C)165 ft·lbARM Impact
UV Rating> UV-20ASTM D2565, Cycle 1
ESCR (Cond. A, 100% Igepal, F50)70 hASTM D1693

Key Characteristics of Marlex® HMN TR-945 HDPE 

  • Wide process windows 
  • Good impact strength 
  • Good flow combined with fair ESCR 
  • High modulus 
  • Durability 

 

These HDPE resin properties make Marlex® HMN TR-945 PE a dependable choice for rotational molding applications that require rigidity, durability and long‑term performance in large structural components.

Contact our technical service team for processing recommendations

HDPE Resin for Rotational Molding

HDPE resins are engineered for both rigid and flexible processing methods. Marlex® HMN TR-945 PE is optimized for rotational molding applications.

Rigid Applications

Non-exhaustive list of applications:

  • Large tanks and other high modulus parts
  • Ductwork

 

These applications benefit from Marlex® HMN TR-945 PE’s ability to maintain wall integrity, resist cracking and deliver consistent long‑term performance in demanding rotational molding applications.

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 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

Innovation and Sustainability

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