GPO-3 thermosetting insulation material properties

GPO-3 is a glass reinforced thermoset polyester sheet. GPO-3 is strong, stiff, dimensionally stable and impact resistant. The material also has excellent electrical properties, including fire, arc and tracking resistance. It is widely used in electrical insulation applications. GPO-3 is also used in mechanical applications requiring strength, stiffness, dimensional stability and relatively low cost.

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GPO-3 sheets offer an excellent combination of high strength, flame retardancy and low smoke production. It is commonly manufactured into interphase and end barriers and switchgear; GPO-3 is also popular in transportation and marine applications where a safe and economical material is required. In fact, ThyssenKrupp Engineering Plastics supplies “transit-grade” GPO materials designed specifically for New York City’s transportation system. It is now also used in many other cities for third rail covers and other applications.

Color: white, black, red

 

Dimensions: 36" x 72" – 48" x 96"

Thickness: 0.031 inches – 2.0 inches

maximum. Length: 96”

maximum. Width: 60”

 

NOTE: Length, width, thickness and diameter tolerances vary by size, manufacturer, brand and grade. Custom sizes available upon request.

 

Solid and stiff

Impact resistance

Excellent electrical properties

Good flame and smoke characteristics

Dimensional stability

 

1,000 minutes of orbital resistance

High dielectric strength (electrical insulation)

High flame retardancy

High strength (8,000 psi tensile strength)

Low smoke and smoke toxicity

UL® Recognized

NEMA rating

 

 

GPO-3 thermosets are widely used in:

Insulators for electromechanical equipment

Electrical insulation structure: GPO-3 is used to manufacture isolation boards, isolation covers, support structures, etc. for electrical equipment, providing good electrical insulation performance.

Motor and transformer components: Due to its good insulation properties and mechanical strength, GPO-3 is often used in the manufacture of partitions, terminal boards, support structures, etc. for motors and transformers.

Control cabinets and electrical boxes: Used to manufacture enclosures and support structures for electrical equipment, providing good insulation and mechanical support.

Cable Support Systems: GPO-3 materials are often used to create cable support and insulation structures to ensure cables are supported and isolated inside equipment.

Fuses and Circuit Breakers: GPO-3 is used to manufacture insulating components of fuses and circuit breakers that provide safe insulating isolation in electrical circuits.

Thermal Insulation: Due to its heat resistance, GPO-3 is also used in the manufacture of some thermal insulation components, such as insulating supports for high-temperature electrical equipment.

Electronic components: GPO-3 materials are widely used in some electronic components, such as casings of electronic equipment, isolation boards, etc.

Thermal insulation materials in high-temperature environments: Due to its good high-temperature resistance, GPO-3 can also be used in some occasions that require heat insulation.

 

Electrical insulation properties:

 

Insulation Rating: GPO-3 typically has a UL94 V-0 flame retardant rating.

Dielectric strength: Typically between 20-30 kV/mm.

 

Mechanical behavior:

Tensile strength: Typical value is ≥ 140 MPa.

Bending strength: usually above ≥ 270 MPa.

Thermal performance:

Thermal Temperature Resistance: GPO-3 is generally able to withstand higher temperatures with sustained use, typically between 120°C and 155°C, depending on thickness and manufacturer.

 

Chemical stability:

Chemical Resistance: GPO-3 generally has good resistance to some chemicals, solvents and oils.

 

Flame retardancy:

UL94 rating: GPO-3 usually complies with the UL94 V-0 flame retardant rating, which means it has better flame retardant performance in the flame test.

 

Dimensional stability:

Coefficient of Thermal Expansion: GPO-3 has a relatively low coefficient of thermal expansion, resulting in small dimensional changes.

 

Moisture absorption:

Moisture Absorption Rate: Typically less than 1%.

 

Surface properties:

Surface texture: Smooth or textured surface.