G10/FR4 Glass Reinforced Laminate Tubes, Rods and Sheets
(Micarta) (High Pressure Laminates) G10/FR4 Glass
Reinforced Epoxy
(yellowish to light green)
G10/FR4 Technical Data Sheet
G10/FR4 Chemical Resistance Chart
The most versatile all-around laminate and composite, this grade
is a continuous glass woven fabric base impregnated with an epoxy resin binder.
It has extremely high mechanical strength, good dielectric loss properties, and
good electric strength properties, both wet and dry. NEMA grades G10 and
FR4 Glass-Cloth Reinforced Epoxy -- natural color is typically a yellowish to
light green. The most versatile all-around laminate grades are continuous glass
woven fabric impregnated with an epoxy resin binder. (Epoxy resins are among the
most versatile and widely used plastics in the electronics field, primarily
because water absorption is virtually nil, rendering it an outstanding
insulator. Beyond its electrical insulating properties, epoxy resins exhibit
superior adhesive properties and great dimensional stability -- shrinkage is
usually less than 1 percent.) G10/FR4 has extremely high mechanical strength,
good dielectric loss properties, and good electric strength properties, both wet
and dry. The main difference between NEMA Grades G10 and FR4 is that FR4 is a
fire retardant grade of G10. Therefore, FR4 can be safely substituted where G10
is called for, while G10 can never be substituted where FR4 is called for. (G10
certifies to Mil-I-24768/2 GEE; FR4 certifies to Mil--24768/27 GEE-F.) NEMA
grades G11 and FR5 Glass-Cloth Reinforced Epoxy -- natural color is typically
yellow green to amber. This grade is similar to G10/FR4 with the addition of a
higher operating temperature and some improved mechanical strength at elevated
temperatures
Grade NEMA FR-4 certs to MIL-I-24768/27 GEE-F, IPC 4101/21, IEC 60893-3 Type 2 EP GC 202
