Mica Products>Moulding Mica Sheets

Moulding Mica Sheets

Moulding mica sheet is made of mica splitting. Mica splittings bound with various adhesive ( resin ) and form rigid sheet after heat-pressed.

Hot moulding mica sheets keep rigid at room temperature, but can be formed to any desired shape at temperature of 110±5℃(5250) 130±5℃(5252) after being treated for 15 minutes. It is applied in electrical machinery and appliances of class B, F, H, as insulation parts. Low resin content moulding mica sheet is suitable for traction motors and hoist motors, or as insulation parts of electrical machinery with higher rotating speed.

Index
Unit
5231
5236
5250
5252
Thickness range
mm
0.15 - 1.20
0.15 - 1.20
0.15 - 1.20
0.20 - 0.30
Mica content
%
75 ~ 85
85 ~ 92
75 ~ 85
75 ~ 85
Resin
shellac
shellac
silicone
maleic
Resin content
%
15 ~ 25
8 ~ 15
15 ~ 25
15 ~ 25
Dielectric strength
kV/mm
≥35 (0.15mm-0.25mm)
≥30 (0.30mm-0.50mm)
≥25 (0.60mm-1.20mm)
Standard
-
JB/T7099-93
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