Epoxy Fiberglass 3240 FR4
Epoxy glass cloth laminated sheet is made from epoxy resin and glass cloth.It has high mechanical strength,electrical properties,good moisture resistance properties .
Epoxy glass cloth laminated sheet has widely range of applications , it is suitable for using as insulating structural parts in electric equipments ,such as electric generators ,motors.
Type including 3240A,3240B,G10,FR4.
Technical Data
|
Property
|
Test
Standard
|
Unit
|
3240A
|
3240B
|
G-10
|
FR-4
|
|
Density
|
GB/T1303.1-1998
|
g/cm3
|
1.9~2.0
|
1.9~2.0
|
1.9~2.0
|
1.9~2.0
|
|
Tensile
Strength
|
GB/T1303.1-1998
|
MPA
|
300
|
180
|
≥340
|
≥340
|
|
Dielectric Strength Perpendicular to Laminations (90±2℃ in Oil thickness 3mm)
|
GB/T1303.1-1998
|
MV/m
|
10.2
|
6.12
|
14.2
|
14.2
|
|
Breakdown Voltage parallel to laminations
(in
90±2°C transformer oil)
|
GB/T1303.1-1998
|
KV
|
≥35
|
≥25
|
≥50
|
≥50
|
|
Flame
Resistance
|
GB/T1303.1-1998
|
---
|
V-1
|
---
|
HB
|
V-0
|
|
Water
Absorption D24/23(thickness
2.0mm)
|
GB/T1303.1-1998
|
%
|
≤19
|
≤19
|
≤0.23
|
≤0.15
|
|
Impact Strength Parallel to Laminations (Notched
Charpy)
|
GB/T1303.1-1998
|
KJ/m2
|
33
|
26
|
33
|
33
|
|
Compression
Strength Vertical
|
GB/T1303.1-1998
|
MPA
|
350
|
210
|
---
|
---
|
|
Flexural Strength Perpendicular to Laminations
|
GB/T1303.1-1998
|
MPA
|
340
|
204
|
340
|
340
|