GPO-3

GPO-3 Product Guide

Overview

GPO-3 is a reinforced thermoset polyester resin blended with fiber glass. GPO-3 is the industry standard for plastic used in electrical applications due to its highly flame retardant qualities, arc, and track resistance. GPO-3 is UL® recognized material offering ease of fabrication, low conductivity, dimesional stability, good UV resistance, and good property retention at elevated temperatures. It is typically used in high-voltage appliance insulators, tool handles, power distribution parts, conduit snakes, hand rails, and operating rods.

Common Brand/Trade Names

Glastic®, Haysite®, Glass Polyester

Other Resources

Weight Calculator

Products

GPO-3 Sheet/Plate

Applications

Phase & End Barriers
Antenna Bases
Standoff & Strain Insulators
Bus Bar Supports
Mounting Panels in Switch Gears


Physical Properties GPO-3
Density	0.065 lb/in3
Tensile Strength	9 ksi
Elongation at Break Percentage	4.5%
Flexural Strength	18 ksi
Flexural Modulus	1,500 ksi
Compressive Strength	30 ksi
Izod Impact (notched)	8 ft-lb/in
Hardness, Barcol	62
Coefficient of Linear Thermal Expansion	0.000042 x 10^-5 /K
Heat Deflection Temp. at 26.4 ksi	200 °F
Water Absorption %, 24hrs	0.2%