Exxelor PE 1040 polymer resin is a maleic anhydride functionalized high density polyethylene, produced by reactive extrusion. It has been primarily designed to act as a coupling agent in filled polyethylene compounds, or as a coupling agent or tie layer in multilayer polyethylene systems to ensure compatibility and improve adhesion of the different layers.

This grade is designed to:
- Function as a coupling agent between reinforcing materials such as natural and mineral fillers and high density polyethylene to improve mechanical properties.
- Achieve compatibility and adhesion between high density polyethylene and polyamide.
- Function as a tie layer in multilayer tank systems with high density polyethylene and a barrier layer.