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Glass Epoxy (G10, FR4) Characteristics
Epoxy resins are widely used in electronic applications because they are virtually impervious to moisture. As a thermoset material, glass epoxy has outstanding mechanical and electric strength as well as good dielectric properties.
Epoxy resins are a good choice of thermosets for fabricated components for many electrical and mechanical applications.
FR4 is the fire-retardant grade of G10 material.
These materials offer:
- Good dimensional stability
- Outstanding insulating and electrical properties
- Moisture-resistance
- Excellent flammability rating
- UL listed
See the charts below for G-10 and FR4 material properties.
Applications for G10, FR4 Thermosets
- Power generation components
- High-temperature applications
- Structural parts
- Printed circuit boards
Contact a Dielectric Manufacturing knowledge expert to discuss the use of G10 and FR4 epoxy resins for fabrication of your parts. Call 800-367-9122 or email sales@dielectricmfg.com.
We also are a distributor of glass epoxy material. Contact us about fulfilling your material needs and to get a quote.
G10 Glass Epoxy Material Properties
Dielectric Manufacturing, Richfield, Wisconsin USA dielectricmfg.com G10 Thermoset Industrial Laminate Material Properties Provided By Dielectric Manufacturing, Richfield, WisconsinProperties Tensile Strength 40,000 psi lengthwise 35,000 psi crosswise Comprehensive Strength 68,000 psi flatwise 35,000 psi edgewise Flexural Strength - .125" 55,000 psi lengthwise 45,000 psi crosswise Modulus of Elasticity - Flexural 2,700 kpsi lengthwise 2,200 kpsi crosswise IZOD Impact 7.0 ft-lb/in of notch lengthwise 5.5 ft-lb/in of notch crosswise Rockwell Hardness M scale 111 Specific Gravity 1.80 Bond Strength, in lbs. 2,000 Coefficient of Thermal Expansion cm/cm- ºCx10-5 0.9 Water Absorption 0.62" thick % per 24 hrs = 0.25 0.125" thick % per 24 hrs = 0.15 0.500" thick % per 24 hrs = 0.10 Dielectric Strength, volt/mil perpendicular to laminations: Step by Step 0.62" thick = 450 0.125" thick = 350 Dissipation Factor, condition A, 1 megacycle max 0.025 Dielectric Constant condition A, 1 megacycle max 5.2 Insulation Resistance, Megaohms at Condition C 200,000 Temp. Index 0.62" and over Electrical - ºC = 130 Mechanical - ºC = 140 Mil-1-24768 2 MIL - Type GEE
FR4 Glass Epoxy Material Properties
Dielectric Manufacturing, Richfield, Wisconsin USA: dielectricmfg.comProperties Tensile Strength 40,000 psi lengthwise 35,000 psi crosswise Comprehensive Strength 60,000 psi flatwise 35,000 psi edgewise Flexural Strength - .125" 55,000 psi lengthwise 45,000 psi crosswise Modulus of Elasticity - Flexural 2,700 kpsi lengthwise 2,200 kpsi crosswise IZOD Impact 7.0 ft-lb/in of notch lengthwise 5.5 ft-lb/in of notch crosswise Rockwell Hardness M scale 110 Specific Gravity 1.85 Bond Strength, in lbs. 2,000 Coefficient of Thermal Expansion cm/cm- ºCx10-5 1.0 Water Absorption 0.62" thick % per 24 hrs = 0.25 0.125" thick % per 24 hrs = 0.15 0.500" thick % per 24 hrs = 0.10 Dielectric Strength, volt/mil perpendicular to laminations: Step by Step 0.62" thick = 450 0.125" thick = 350 Dissipation Factor, condition A, 1 megacycle max 0.025 Dielectric Constant condition A, 1 megacycle max 5.2 Insulation Resistance, Megaohms at Condition C 200,000 Temp. Index 0.62" and over Electrical - ºC = 130 Mechanical - ºC = 140 Mil-1-24768 27 MIL - Type GEE-F
