Marlex® K306 medium-density polyethylene (MDPE) is a high molecular weight ethylene-hexene copolymer engineered for demanding geomembrane and sheet extrusion applications. It delivers outstanding environmental stress crack resistance (ESCR), excellent melt strength and a broad fusion range to support reliable fabrication and long-term field performance in critical containment systems.
Leveraging decades of polyethylene manufacturing expertise, CPChem produces Marlex® MDPE resins using advanced catalyst systems and rigorous process controls. This foundation delivers consistent molecular structure and dependable resin quality, enabling predictable extrusion behavior and consistent welded seam performance in geomembrane manufacturing.