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CADX Services, Inc.
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10 Year Seal

FR4-02: Woven Fiberglass, Flame-Retardant

Physical Properties Values Units
Resin / Base Phenolic Paper -
Color Natural [Tan] -
Fungus Resistance Good -
Solvent Resistant Very Good -
Specific Gravity 1.40 -
Transparency Poor -
Water Absorption 0.45 %
Mechanical Properties Values Units
Compressive Strength 33 PSI x 10^3
Flexural Strength - Length 18 PSI x 10^3
Flexural Strength - Cross 18 PSI x 10^3
Flexural Modulus - Length 1.2 PSI x 10^6
Flexural Modulus - Cross 1.1 PSI x 10^6
Izod Impact - Length 0.5 Ft. lbs/In. notch
Laminate Bond Strength 1000 Lbs
Punching Temperature 120 °F
Rockwell Hardness 100 M Scale
Electrical Properties Values Units
Capacitance Drift Poor -
Dielectric Constant 1 MHz 4.2 D24/23
Dissipation Factor 1 MHz .031 D24/23
Dielectric Breakdown (Para) 60 KV
Dielectric Strength (Perp) 700 V/MIL
Resistivity Surface 5 Megohms x 10^4
Insulation Resistance (EIA Pattern) 0.5 Megohms x 10^6
Thermal Properties Values Units
Glass Transition 60 °C
Thermal Conductivity 1.8 (5)
Coefficient of Expansion - Length 1.2 In./In./C x 10^-5
Coefficient of Expansion - Cross 2.5 In./In./C x 10^-5
Underwriter Lab Rating Values Units
Flammability 94V-0 -
High Ampere Arc 100 Cycles
High Voltage Tracking 0.0 In./Min
Soldering Limits - 500F 25 Seconds
Soldering Limits - 525F 8 Seconds
Maximum Operating Temperature 105 °C

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