This Garolite sheet can be used to make fuel cell end plates. This Garolite grade is the flame-retardant version of G-10 Garolite, offering excellent strength, low water absorption, and good electrical insulating qualities in dry and humid conditions. The material is fiberglass-cloth with a flame-retardant epoxy resin. It meets MIL-I-24768/27 and UL 94V0 for flame retardance.

These sheets are unmachined and generally come in a black, blue, or tan color.

Thickness Tolerance

At 1/16" ±0.008"
At 1/8" ±0.012"
At 1/4" ±0.022"
At 3/8" ±0.038"

Width and Length Tolerances ±1/4"

Plate Physical Properties
Plate Grade	G-10/FR4 Garolite (smooth finish)
Nominal Density	0.069 lbs./cu. in.
Hardness	Rockwell M110-M115
Compressive Strength	35,000 - 66,000 psi
Flexural Strength	45,000 - 60,000 psi
Tensile Strength	35,000 - 50,000 psi (Excellent)
Impact Strength	5.5 - 12 ft.-lbs./in. (Excellent)
Dielectric Strength	350 - 800 volts/mil.
Water Absorption	0.1 - 0.15%
Maximum Temperature	265°F (129.5°C)
Other Plate Properties
Machine	Use carbide tooling