Vulcanized fiber is one of the most important special fiber in China . China is one of the four countries in the world has the special fiber production . In China , it is produced from cotton linters as raw materials through alkaing , bleaching ,and zinc chloride treatment . The fiber is light and tensile with the hardness close to aluminum and weight as half of it . it has good mechanical processing performance and good insulation performance , with oil resistance , and can be processed in wide temperature range from -40ºC-100ºC. its superior performance quality its wide usage in machinery , textile , electronics, railway , aerospace insulation fiber products were made from mixed wood and cotton refining pulp through our unique manufacturing process and zinc chloride treatment . our vulcanized fiber products are of the top quality in all specifications .Specification :1. product color : red, brick red, white , grey , dark green , black, or made to order ;2.thickness : 0.45-10.0mm3.package: roll , sheets .
| Item | Unit | Insulating vulcanized fiber | Abrasive vulcanized fiber | Flame retardant vulcanized fiber | ||
| Thickness | mm | 0.4-1.6 | 0.5-1.6 | 0.4-1.6 | ||
| Thickness tolerance | % | ±5 | ±5 | ±5 | ||
| Density | g/m³ | 1.15-1.30 | 1.20-1.35 | 1.15-1.30 | ||
| Tensile strength length | KN/m³ | ≥7.5 | ≥9.5 | ≥7.5 | ||
| Tensile strength width | KN/m³ | ≥4.0 | ≥4.8 | ≥4.0 | ||
| Bending strength | Normal | Normal | Normal | |||
| Min dielectric strength | 0.4-0.9mm | KV/mm | ≥7.0 | ≥6.0 | ≥7.0 | |
| 1.0-2.0mm | ≥5.0 | ≥5.0 | ≥5.0 | |||
| Ply Adhesion | N/m | 200-400 | 350-500 | 200-400 | ||
| Moisture | % | 6.0-10.0 | 7.0-9.0 | 6.0-10.0 | ||
| Zinc chloride content | % | ≤0.2 | ≤0.2 | ≤0.2 | ||
| Water absorption | 0.4-0.9mm | % | ≤75 | ≤75 | ≤75 | |
| 1.0-2.0mm | ≤65 | ≤65 | ≤65 | |||
| Ash | % | ≤2.5 | ≤2.5 | ≤2.5 | ||
| Maximum temperature for usual use | ºC | 120 | 120 | 120 | ||
| UI 94 flame test | 94-hb | |||||
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