Glass Epoxy (G10, FR4)

 In Thermoset Plastics

How Can We Help?

Table of Contents
< Back
You are here:
Print

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.

These materials offer:here to help 200

  • 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.

G10 Glass Epoxy Material Properties

Properties   
Tensile Strength40,000 psi lengthwise35,000 psi crosswise
Comprehensive Strength68,000 psi flatwise35,000 psi edgewise
Flexural Strength - .125"55,000 psi lengthwise45,000 psi crosswise
Modulus of Elasticity - Flexural2,700 kpsi lengthwise2,200 kpsi crosswise
IZOD Impact7.0 ft-lb/in of notch lengthwise5.5 ft-lb/in of notch crosswise
Rockwell Hardness M scale111
Specific Gravity1.80
Bond Strength, in lbs.2,000
Coefficient of Thermal Expansion cm/cm- ºCx10-50.9
Water Absorption0.62" thick % per 24 hrs = 0.250.125" thick % per 24 hrs = 0.150.500" thick % per 24 hrs = 0.10
Dielectric Strength, volt/mil perpendicular to laminations: Step by Step 0.62" thick = 4500.125" thick = 350
Dissipation Factor, condition A, 1 megacycle max0.025
Dielectric Constant condition A, 1 megacycle max5.2
Insulation Resistance, Megaohms at Condition C200,000
Temp. Index 0.62" and overElectrical - ºC = 130Mechanical - ºC = 140
Mil-1-247682
MIL - TypeGEE

Dielectric Manufacturing, Richfield, Wisconsin USA dielectricmfg.com

G10 Thermoset Industrial Laminate Material Properties Provided By Dielectric Manufacturing, Richfield, Wisconsin

FR4 Glass Epoxy Material Properties

Properties   
Tensile Strength40,000 psi lengthwise35,000 psi crosswise
Comprehensive Strength60,000 psi flatwise35,000 psi edgewise
Flexural Strength - .125"55,000 psi lengthwise45,000 psi crosswise
Modulus of Elasticity - Flexural2,700 kpsi lengthwise2,200 kpsi crosswise
IZOD Impact7.0 ft-lb/in of notch lengthwise5.5 ft-lb/in of notch crosswise
Rockwell Hardness M scale110
Specific Gravity1.85
Bond Strength, in lbs.2,000
Coefficient of Thermal Expansion cm/cm- ºCx10-51.0
Water Absorption0.62" thick % per 24 hrs = 0.250.125" thick % per 24 hrs = 0.150.500" thick % per 24 hrs = 0.10
Dielectric Strength, volt/mil perpendicular to laminations: Step by Step 0.62" thick = 4500.125" thick = 350
Dissipation Factor, condition A, 1 megacycle max0.025
Dielectric Constant condition A, 1 megacycle max5.2
Insulation Resistance, Megaohms at Condition C200,000
Temp. Index 0.62" and overElectrical - ºC = 130Mechanical - ºC = 140
Mil-1-2476827
MIL - TypeGEE-F

Dielectric Manufacturing, Richfield, Wisconsin USA: dielectricmfg.com

Get a Quote

Previous Glass Cloth Phenolic Resin (G3)
Next Glass Epoxy (G11)