
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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