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 | â¥7.5 | â¥9.5 | â¥7.5 |
Tensile strength width | KN/m³ | â¥4.0 | â¥4.8 | â¥4.0 |
Bending strength | | Normal | Normal | Normal |
Min dielectric strength | 0.4-0.9mm | KV/mm | â¥7.0 | â¥6.0 | â¥7.0 |
| 1.0-2.0mm | | â¥5.0 | â¥5.0 | â¥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 | % | â¤0.2 | â¤0.2 | â¤0.2 |
Water absorption | 0.4-0.9mm | % | â¤75 | â¤75 | â¤75 |
| 1.0-2.0mm | | â¤65 | â¤65 | â¤65 |
Ash | % | â¤2.5 | â¤2.5 | â¤2.5 |
Maximum temperature for usual use | ºC | 120 | 120 | 120 |
UI 94 flame test | | | | 94-hb |