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| PRE COMPRESSED PRESS BOARD |
- Made of intermittent board machine using highly pure unbleached softwood sulphate pulp
-
Wet board pressed and dried simultaneously to obtain a board of good dimensional stability, electrical & mechanical strength
- Widely used as insulating material in Power & Distribution Transformers, Capacitors in form of Winding Cylinders, Spacers, Key Way, Strips etc
- Ideal for manufacture of machined components such as redial and axial Spacers
- Available in thickness of 0.80 mm to 4 mm
| Typical Properties of the PCB |
| Specified Properties |
Units |
Typical Values
|
| Thickness Tolerance |
% |
+ / - 5 |
| Density |
g / cm^3 |
1.10 - 1.25 |
Tensile strength
Machine Direction >=
Cross Direction >= |
N / mm^2 |
90
50 |
Elongation
Machine Direction >=
Cross Direction >= |
% |
3.5
4.0 |
Shrinkage
Machine Direction <=
Cross Direction <=
Thickness Direction <= |
% |
1.0
1.4
6.0 |
| Moisture content |
% |
5 - 9 |
| Oil Absorbency >= |
% |
9 |
Electric Strength (In Oil)
0.8 – 1.0 mm <=
1.5 – 2.0 mm <=
3.0 – 4.0 mm <= |
KV/mm |
35
30
24 |
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