G-10/FR-4 Epoxy

G-10/FR-4 is a thermosetting industrial laminate consisting of a continuous filament glass cloth material with an epoxy resin binder. This product, first introduced in the 1950's, has characteristics of high strength, excellent electrical properties and chemical resistance. These properties are maintained not only at room temperature but also under humid or moist conditions.

Today what is called G-10 is actually FR-4, the flame retardant version of G-10. The material FR-4 can usually be used where G-10 is specified, however G-10 should not be used where FR-4 is specified.

Both G-10 and FR-4 are rated at 285 degree F continuous operating temperature. Because they are thermosets, no melting will occur with these grades, however charring will be observed after extended periods above the temperature rating. FR-4 has a flammability rating of 94 V-0.

With these outstanding characteristics, it is easy to understand why G-10/FR-4 is such a versatile material and is used in a wide variety of applications.

High dielectric strength

Radiation resistant

High tensile strength

Low cold flow or creep

Chemically resistant

High flexural strength

Dimensional stability

Low moisture absorption

Low dissipation factor

High impact strength

Cryogenic serviceability

Electrical equipment	Solder Frames
Aerospace conditions	Test fixtures
Rocket cases	Medical diagnostic
Antenna insulators	Circuit board holders
Test boards	Terminal boards
End plates	Underwater conditions
Cryogenic insulation

Rod: .062" to 4.500"
Sheet: .005" to 3.000"
Tubing: .187" I.D. to 6.00" I.D., wall thickness, 0.62" to 1.50"
Standard Color: Green. Special order, black, red, blue, yellow, with minimum ordering quantities.