GP03 Polyester Glass Mat

Material Details

Grade:GPO3
Description: Polyester Glass. Polyester Glass Mat (PGM) (Not manufactured by The Attwater Group)
Comments:Attamat GPO3 is a PGM composite sheet produced from glass mat and polyester resin. The sheet is an equivalent of NEMA GPO3 (flame retardant and anti tracking grade.) GPO3 exhibits an excellent combination of high strength, good flame resistance, which makes the product an ideal choice in many applications.
Specifications:The closest NEMA equivalent to this specification is NEMA GPO3
Body Colour:Red (White on request)
Cover Colour:Red (White on request)
Finish:Mat
Size:2800 x 1200 other sizes available
Thickness Range: 2.0 - 80.0

Typical Applications

  • Busbar Supports
  • Chemical Resistance Components
  • Flame Retardant Applications
  • High Temperature Components
  • High Voltage (Oil submerged)
  • High Voltage Insulation
  • Insulating Bushes Spacers Sleeves
  • Mechanical Applications
  • Phase Barriers
  • Punched Components
  • Switchgear Link Bars
  • Switchgear Manufacture
  • Terminal Boards and Tag Strips
  • Track Resistance
  • Transformer Spacers

General Properties

Property Unit of measure Typical Value
Densityg/cm32.0
Water Absorptionmgmax. 55
Flammability Category (≥4mm) †--UL94V0
¥ Where relevant, the flammability test method is used solely to control and monitor consistency of production. Under no conditions should the results be considered in relation to fire hazards under actual conditions of use.

Electrical Properties

Property Unit of measure Typical Value
Breakdown Voltage (Edge Step by Step)kV75
Electric Strength (Flat)kV/mm12
Tracking IndexV600
IR (24hrs water immersed)M Ω500

Mechanical Properties

Property Unit of measure Typical Value
Flexural StrengthMPa150
Compressive Strength (perpendicular to laminations)MPa300
Tensile StrengthMPa100
Impact (Notched Charpy Method)kJ/m²40

Thermal Properties

Property Unit of measure Typical Value
Thermal Rating Continuous°C120
Coefficient Linear Expansion°C20

Disclaimer: The above values are based upon routine test data and do not form the basis of a supply contract. These products may be used in a diverse range of applications and whilst every effort is made to ensure the information in this data sheet is accurate, it must be stressed that it is the user’s responsibility to ensure suitability for the intended end use.