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173 Glidden Road Brampton, Ontario, Canada, L6W 3L9
Tel: (905) 452-0552
Fax: (905) 452-8217
Toll: 1-800-361-1698

Electrical Insulation • Plastics • Stamping • Machining • Fabricating

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Products & Materials


GPO1, GPO-2, GPO-3, HST-11, EMD

Glass Polyester is a Fiberglass-reinforced Polyester Resin Laminate commonly used in Mechanical applications, and is one of the most commonly used Electrical Insulation materials. It comes in a number of forms, including Glastic Sheet, Glastic Channels, Glastic Angles, the Glastic Standoff Insulator, Rod, Tube, and Film. It is also available in a variety of sizes and thicknesses.

GRT Genesis stocks a large volume of Glass Polyester and Insulator types, which are some of the Standard Electrical Insulation materials for Electrical Applications. Such applications include Transformers, Switchgears, and Generators.  Easily machined, readily available, and affordably priced, Glastic Standoff Insulation has a number of desirable Mechanical and Electrical properties.


  • Glass Polyesters are also used in the same wide variety of critical applications, where cost-effective resin systems are combined with random-glass matte for a range of desirable such as high Track Resistance
  • Continous Filament Pultrusions and BMC’s offer unlimited design potential
  • GPO-3 Red stocked in 36" x 72" up to 4" thick and 48" x 96" up to 2" thick
  • GPO-3 White - stocked - .125" thick and .250" thick in 48" x 96" sheets
  • GRT also stocks grades SG 200 and FHT, as well as specialty grades exceeding 200C and a variety of grades for thermal and environmental applications.

Popular Glass Polyester Electrical Insulation Materials:

•    Motor Wedges
•    Mounting Panels
•    Structural Supports
•    Standoff Insulators
•    Switchgear Arc Barriers
•    Circuit Breaker Insulation
•    Transformer Core and Winding Insulation
•    Glastic Sheet, Glastic Channels, Glastic Angles and Glastic Standoff Insulator

GRT Genesis, carries Glass Polyester and Glastic Standoff Insulator products Manufactured by Glastic Corporation and Haysite Inc. For more information about any of our Electrical Insulation products, or specific information about our Glastic Sheet, Glastic Channels, Glastic Angles or Glastic Standoff Insulator offerings, give us a call today! Toll Free: 1800.361.1698 one of our representatives will be happy to assist you in finding the right match for your business.

For more details click here to visit our Material Specification Library Page (Size Charts and Spec Sheets).