Pyralux® LF

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Pyralux® LF acrylic based coverlay


Pyralux® LF acrylic-based coveraly features Kapton® polyimide film, coated on one side with a proprietary B-staged modified acrylic adhesive. This coverlay can be used to encapsulate etched details in flexible and rigid-flex multilayer constructions for environmental protection and electrical insulation.

Features & Benefits

  • Excellent bond strength affords high reliability
  • High thermal resistance to facilitate processing
  • Able to withstand multiple lamination cycles
  • No refrigeration required for storage

Applications

  • Protects flexible circuitry with durable polyimide coverlay
  • Replaces traditional coverlay constructions with simplified lamination
  • Withstands soldering, reflow, and harsh processing conditions

Pyralux® LF Technical Documents

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    Pyralux® LF Product Series Properties

    Property Group Property Name Value Test Method
    Dielectric Dielectric Constant (Dk) 10GHz 3.1 ASTM D2520 / IPC-TM-650 2.5.5.3
    Dielectric Constant (Dk) 1MHz 3.6 ASTM D2520 / IPC-TM-650 2.5.5.3
    Loss Tangent (Df) 10GHz 0.015 ASTM D2520 / IPC-TM-650 2.5.5.3
    Loss Tangent (Df) 1MHz 0.02 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

    Pyralux® LF Product Properties

    Property Name Form Factor Package Adhesive Type Coverlay Color Dielectric Thickness (μm) Dielectric Thickness (mil) Adhesive Thickness (μm) Adhesive Thickness (mil)
    LF7013 Coverlay Roll Acrylic Amber 13.0 0.50 25.0 1.0
    LF0110 Coverlay Roll Acrylic Amber 25.0 1.00 25.0 1.0
    LF0120 Coverlay Roll Acrylic Amber 51.0 2.00 25.0 1.0
    LF0130 Coverlay Roll Acrylic Amber 76.0 3.00 25.0 1.0
    LF0150 Coverlay Roll Acrylic Amber 127.0 5.00 25.0 1.0
    LF7034 Coverlay Roll Acrylic Amber 25.0 1.00 38.0 1.5
    LF7082 Coverlay Roll Acrylic Amber 13.0 0.50 51.0 2.0
    LF0210 Coverlay Roll Acrylic Amber 25.0 1.00 51.0 2.0
    LF0220 Coverlay Roll Acrylic Amber 51.0 2.00 51.0 2.0
    LF0230 Coverlay Roll Acrylic Amber 76.0 3.00 51.0 2.0
    LF0250 Coverlay Roll Acrylic Amber 127.0 5.00 51.0 2.0
    LF0310 Coverlay Roll Acrylic Amber 25.0 1.00 76.0 3.0
    LF7001 Coverlay Roll Acrylic Amber 13.0 0.50 13.0 0.5
    LF1510 Coverlay Roll Acrylic Amber 25.0 1.00 13.0 0.5