Vulcanised Fibre |
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Vulcanized Fibre is a material manufactured by gelatinizing several piles of high purity cellulose papers. It has extremely high internal bond strength and mechanically excellent punching, forming, machining and many other unique properties. |
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Vulcanized Fibre has the following general properties:-
- Combination of high mechanical strength and dielectric properties.
- Exceptional strength/weight ratio.
- High arc quenching properties both in air and oil.
- Good resistance to wear, fatigue and impact.
- Excellent anti-static and ageing properties.
- Freedom from harmful chemicals, which enables it to be used in direct contact with metals without corrosive effect.
- It is unaffected by organic solvents, petrol's, oils and greases.
- Specifications – BS.6091/Type B, IEC 667/Type B DIN. 7737,ASTM-D-710
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| Property |
Thickness mm (in) |
Units |
Value |
| Density (Min.) |
0.38 (0.015)
1.6 (0.062) |
g/cm3 |
1.15 |
Tensile strength (typical) MD
CD |
1.6 (0.062) |
psl
kgf/mm2
psl
kgf/mm2 |
13,500
9.5
7,500
5.3 |
Flexural strength (min) MD
CD |
1.6 (0.062) |
psl
kgf/mm2
psl
kgf/mm2 |
20,000
14.1
13,000
9.2 |
Compressive strength flatwise
(typical) |
1.6 (0.062) |
psi
kgf/mm2 |
35,000
24.6 |
Impact strength Izod, MD
Edgewise (typical) CD |
1.6 (0.062) |
kgf-ft-lbs/in
cm/cm
kgf-ft-lbs/in
cm/cm |
2.3
12.5
1.8
9.8 |
Hardness, Rockwell R Scale
(typical) |
1.6 (0.062) |
Division |
70 |
Bursting strength, Mullen
(typical) |
0.38 (0.015) |
psi
kgf/cm2 |
300
21.1 |
| Dielectric strength (typical) |
0.38 (0.015)
1.6 (0.062) |
volts/mil
kV/mm |
175
6.9 |
| Arc Resistance (typical) |
1.6 (0.062) |
seconds |
100 |
| Water absorption (Max) |
1.6 (0.062) |
%/2hrs
%/24hrs |
52
66 |
Grey
Ash content (max) Red
Black |
|
% |
1.0
5.0
1.0 |
| Zinc Chloride content (Max) |
|
% |
0.05 |
UL94 Flame Class
All Colours |
Above 0.76
(above 0.03) |
|
94HB |
| BA.2757 Thermal Classification |
|
|
Class ‘A’
(105 C) |
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