Mica Products > Mica Foil

Mica Foil

Mica foil is made of mica splittings, which is bonded together with backing material of glass cloth ( or polyester film, polyimide film ). Mica foil is hot moulding, of good moisture resistance. It is used as insulation in motors and electrical appliances of B, F and H class, as tube, slot lining and pole insulation.

Index
Unit
5834-1 Epoxy PET film
5840-1 Epoxy PI film
841-1 Epoxy PET film
5850 Silicone glass
Material
-
glass mica foil
glass mica foil
glass mica foil
mica foil
Thickness
mm
0.15, 0.17, 0.20
0.15, 0.17, 0.20
0.15, 0.17, 0.20
0.15, 0.20, 0.25, 0.30
Mica content ≥
%
30
30
30
50
Binder conent
%
25 ~ 35
25 ~ 35
25 ~ 35
15 ~ 30
Volatile content ≤
%
1.0
Dielectric strength ≥
kV/mm
45
45
45
16
Can be formed to tube at 110±5℃ after 15min.
Can be formed to tube at
Plasticity
-
130±5℃ after 15min.
Temperature class ≥
130
155
155
180
Test method
-
JB/T901-1995