PE-Aluminum Adhesive Choices with DuPont™ Bynel®

PE-aluminum adhesive performance is one of the most important requirements for aluminum composite building panels to remain attractive and trouble-free after installation. Because delaminations can be a particularly unsightly and costly repair issue, panel manufacturers must take great care to assure long-term adhesion between the panel core material and outer metal layers.

Tailored DuPont™ Bynel® resins can be used in composite building panels to meet a range of PE-aluminum adhesive needs.

Tailored DuPont™ Bynel® resins can be used in composite building panels to meet a range of PE-aluminum adhesive needs.
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PE Aluminum Adhesive Placement Alternatives

DuPont offers several specially developed grades of Bynel® adhesive resin for use in laminating building panels. Bynel® resins have been proven effective in a variety of adhesive placement methods (prior to or simultaneous with the aluminum lamination step):

  • Coextrusion with the polymer core;
  • Lamination with a pre-made film of Bynel®
  • Extrusion coating onto the polymer core layer.
The panel manufacturer's choice of adhesive placement technology typically dictates an ideal processing temperature to maximize panel adhesion without damaging color or surface appearance. Bynel® resins are offered in high-performance grades that can be tailored to each manufacturer's processing requirements.

Related DuPont Polymers for Composite Panels

Related DuPont polymer offerings for aluminum composite building panels include:

  • Fusabond® HFFR coupling agents for efficient compounds incorporating high mineral filler loadings.
  • Elvaloy® AC HFFR core layer resins and compound technology for cost-effective alternatives to other conventional flame retardant compositions.