Pyralux® GPL

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Pyralux® GPL coverlay


Pyralux® GPL coverlay is a halogen free coverlay. Pyralux® GPL coverlay composites are constructed of amber Kapton® polyimide film, coated on one side with adhesive. Pyralux® GPL coverlay is designed to encapsulate etched details in flexible and rigid-flex multilayer circuits, providing environmental protection and electrical insulation while delivering high performance. Compatible with Pyralux® all-polyimide laminates with excellent process yield.

Features & Benefits

  • Low Dk and Df
  • Green material with Halogen free and RoHS compliant
  • Excellent peel strength
  • Excellent heat resistance

Pyralux® GPL Technical Documents

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    Pyralux® GPL Product Series Properties

    Property Group Property Name Value Test Method
    Dielectric Dielectric Constant (Dk) 10GHz 3 ASTM D2520 / IPC-TM-650 2.5.5.3
    Dielectric Strength (V/μm) 220 ASTM D149
    Loss Tangent (Df) 10GHz 0.006 ASTM D2520 / IPC-TM-650 2.5.5.3
    Electrical / Insulation Surface Resistance (Ω) >1x10^14 IPC-TM-650 2.5.17
    Volume Resistivity (Ω・cm) >1x10^15 IPC-TM-650 2.5.17
    Environmental Moisture Absorption (%) < 0.8 IPC-TM-650 2.6.2
    Mechanical Elongation at Break (%) 12-35 IPC-TM-650 2.4.19
    Tensile Modulus (Gpa) 2.5 - 3.1 IPC-TM-650 2.4.19
    Safety Flammability (UL 94) Pass (VTM-O) UL94

    Pyralux® GPL Product Properties

    Property Name Form Factor Package Adhesive Type Coverlay Color Dielectric Thickness (μm) Dielectric Thickness (mil) Adhesive Thickness (μm) Adhesive Thickness (mil)
    GPL1215 Coverlay Roll Adhesive-less all polyimide Amber 12.5 0.50 15.0 0.6
    GPL1220 Coverlay Roll Epoxy Amber 12.5 0.50 20.0 0.8
    GPL1225 Coverlay Roll Epoxy Amber 12.5 0.50 25.0 1.0
    GPL-B1215 Coverlay Roll Epoxy Black 12.5 0.50 15.0 0.6
    GPL-B1220 Coverlay Roll Epoxy Black 12.5 0.50 20.0 0.8
    GPL-B1225_N Coverlay Roll Epoxy Black 12.5 0.50 25.0 1.0