Product ParameterProduct DetailsRegular thickness: 0.5～100mm Regular size: 1020×2040mmProduct FeaturesCompared with general insulating materials, the outstanding advantages of Flexible mica boards are: Excellent high temperature resistance and insulation performance, the breakdown voltage still maintains 15kV/mm under the use environment of temperature 500-1000℃; Superior mechanical properties, Flexible mica board has good tensile properties; Stable chemical properties, excellent acid and alkali resistance and aging resistance; Excellent environmental performance, does not contain toxic and harmful components, and does not produce toxic gases at high temperatures; Excellent processing performance, can be processed into various shapes without delamination. Packing: Generally 50kg is a pack, sealed with plastic film, and then packed in carton. When exporting, use fumigation-free trays and pack them according to less than 1000kg per tray, or use iron boxes for protection.| No. | Item | Unit |
| Testing Method |
| 1 | Bending strength | MPa | ≥340 | GB/T 1303.4-2009
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| 2 | apparent flexural modulus | MPa |
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| 3 | Tensile Strength | MPa |
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| 4 | Parallel layer impact strength (simply supported beam method, notched) | kj/m2 | ≥33 | |
| 5 | Vertical layer-wise electrical strength (90C±2C, in 25# transformer oil, 20s step-up, O 25mm/ O 75mm cylindrical electrode system) | kV/mm | ≥11.4 | |
| 6 | Parallel Layer Breakdown Voltage (90°C±2°C, 25# transformer oil, 20s step-up, medium 130mm/O 130mm flat electrode system) | kV | ≥35 | |
| 7 | Dielectric Loss Factor（1MHz） | —— |
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| 8 | Insulation resistance after immersion in water | MQ | ≥5×104 | |
| 9 | Tracking Resistance Index（PTI 600） | —— |
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| 10 | Density | g/cm3 |
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| 11 | Water Absorption | mg | ≤27 |
