Pyralux® GPL

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Pyralux® GPL low loss sheet adhesive


Pyralux® GPL low loss sheet adhesive is a proprietary B-staged modified epoxy adhesive. This stand-alone adhesive exhibit low loss characteristics for high performance applications, while retaining excellent mechanical resilience to facilitate high-yield circuit fabrication. Pyralux® GPL is primarily utilized to bond flexible inner layers or rigid cap layers in flexible and rigid-flex constructions.

Features & Benefits

  • Low loss modified epoxy composition
  • High thermal resistance to facilitate processing
  • Low resin flow mitigates squeeze out during multiple lamination cycles
  • Excellent bond strength affords high reliability

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 2.8 ASTM D2520 / IPC-TM-650 2.5.5.3
    Dielectric Strength (V/μm) 123 ASTM D149
    Loss Tangent (Df) 1MHz 0.0035 ASTM D2520 / IPC-TM-650 2.5.5.3
    Electrical / Insulation Surface Resistance (Ω) >1x10^15 IPC-TM-650 2.5.17
    Volume Resistivity (Ω・cm) >1x10^16 IPC-TM-650 2.5.17
    Environmental Moisture Absorption (%) < 0.4 IPC-TM-650 2.6.2
    Mechanical Elongation at Break (%) 222 IPC-TM-650 2.4.19
    Tensile Modulus (Gpa) 371 Mpa IPC-TM-650 2.4.19
    Safety Flammability (UL 94) Pass UL94

    Pyralux® GPL Product Properties

    Property Name Form Factor Package Adhesive Type Adhesive Thickness (μm) Adhesive Thickness (mil)
    GPL0015 Sheet adhesive Roll Epoxy 15.0 0.6
    GPL0025 Sheet adhesive Roll Epoxy 25.0 1.0
    GPL0030 Sheet adhesive Roll Epoxy 30.0 1.2