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    Rigid Laminate Sheets

    UPGM203 GPO-3 Laminate
    Glass-Reinforced Polyester Insulation for Electrical Applications

    UPGM203 GPO-3 is a high-strength, glass-reinforced polyester laminate designed for electrical insulation, mechanical stability, and arc resistance. Commonly used in switchgear, motor control centres, busbar insulation, and industrial electrical enclosures, it delivers reliable performance in demanding thermal and electrical environments.

    Product Features

    • Available Thicknesses: 0.8mm, 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 4mm, 5mm, 6mm, 8mm, 10mm, 12mm, 16mm, 20mm, 25mm
      (These are standard thicknesses — custom thicknesses also available on request via the quote form )
    • Sheet Size: 2440 mm × 1220 mm
    • Temperature Class: F-Class (155 °C)
    • Available Colours: Red is available in all thicknesses. White GPO3 thickness availability may vary depending on supplier stock.
    • Typical Applications: Switchgear components, busbar supports, MCC panels, insulation barriers, transformer parts, and structural electrical insulation.
    • Supply Format: Available as full sheets, cut panels, or CNC machined parts to your drawings

    With excellent dielectric strength, low water absorption, and high tracking and erosion resistance, UPGM203 GPO-3 is an ideal choice for industrial electrical systems where thermal stability and mechanical reliability are essential. Custom machining and cut-to-size fabrication are available.

    Need machined or cut-to-size components? Explore our CNC Machining Services or browse other Rigid Laminate Sheets .

    For alternative materials, consider G10 Epoxy for broader temperature resistance or Epoxy Phenolic for enhanced mechanical strength.

    Compare GPO3 Glass with related laminates below or view the full selection guide .
    Not sure what laminate your project requires? Get a recommendation →

    COMPARE GPO-3 WITH OTHER ARC & SWITCHGEAR INSULATION MATERIALS
    Arc & switchgear insulation materials
    Compare materials designed for electrical safety, arc resistance and reliable performance in switchgear and panel applications.
    Material Temp Rating Primary Role Strengths Typical Applications
    GPO-3 Glass 155°C Switchgear insulation Arc and flame resistance Electrical enclosures, barriers, switchgear components
    G9 Melamine 140°C Arc-resistant insulation Arc resistance, dielectric strength Switchgear, electrical panels
    Type X Switchpanel 110°C Switchpanel laminate Rigid, machinable, insulating Panels, board components
    Not sure if GPO-3 is the right laminate?
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    Tell us your requirements and we’ll recommend the most suitable laminate, thickness, and format.
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    Looking for GPO3 panels for grain storage or agricultural applications? View rodent-resistant grain containment panel applications .