Thermoset sheet material that consists of polyester resin with glass reinforcement
GPO-3 is a glass reinforced thermoset polyester sheet material. GPO-3 is strong, stiff, dimensionally stable, and impact resistant. The material also has excellent electrical properties including flame, arc, and track resistance. It is widely used for electrical insulating applications. GPO-3 is also used for mechanical applications where strength, stiffness, dimensional stability, and relatively low cost are required.
Tech Tip– Like many glass reinforced thermoset sheet materials, GPO-3 is somewhat abrasive on tooling during machining operations.
Shop for GPO-3 Thermoset
36 in x 72 in – 48 in x 96 in
0.031 in – 2.0 in
Length, width, thickness, and diameter tolerances vary by size, by manufacturer, brand, and grade. Custom sizes available upon request.
GPO-3 Thermoset Properties
Typical properties OF GPO-3 THERMOSET
|Tensile strength (CW)
||8,000 - 11,000
|Flexural strength (CW)
||18,000 - 25,000
||30,000 - 35,000
|Izod impact (notched, CW)
||ft-lbs/in of notch
||8.0 - 9.5
|Water absorption (immersion 24 hours)
Values may vary according to brand name. Please ask your Curbell Plastics representative for more specific information about an individual brand.
Need more information about this material? Use our interactive plastic properties table