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.
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
| 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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