Materials G10/FR4  (Mil-I-24768/27) 

G10/FR4 Product Description

G10/ FR4, is a laminate sheet comprised of a flame retardant epoxy resin and a woven fiberglass substrate. This grade qualifies to NEMA FR4 and MIL-I-24768/27

Typical Applications

This material has high mechanical strength and excellent electrical insulating qualities in both dry and humid conditions. These attributes along with good fabricating characteristics allow this grade to be used in a wide variety of electrical and mechanical applications.

G10-FR4 for Medical Industry

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Typical Properties Typical Value Units
Physical Data
Specific Gravity 1.85
Water Absorption-.125″ < 0.1 %
Temperature Index 140 \ 284 °C \ °F
Rockwell Hardness 110 M scale
Bond Strength > 2,200 \ 1,000 LBS \ kgs
Flexural Strength-LW-A-.125″ > 65,000 \ 448 PSI \ MPa
Flexural Strength-CW-A-.125″ > 50,000 \ 345 PSI \ MPa
Izod Impact Strength-LW > 10 ft-lbs/in
Izod Impact Strength-CW > 8 ft-lbs/in
Compressive Strength-Flatwise > 60,000 \ 415 PSI \ MPa
Electrical Data
Dielectric Breakdown-A > 50 kV
Dielectric Breakdown-D48/50 > 50 kV
Permittivity-A 4.8
Permativity-D24/23 4.8
Dissipation Factor-A 0.017
Dissipation Factor-D24/23 0.018

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