Current Product

VPI Mica Tape

VPI Mica Tape

Properties

VPI Mica tape is a kind of dry Mica paper tape, supported by Glass cloth, PET film or polyimide film and impregnated with high-property resin, compatible with epoxy system and unsaturated polyester system, it shows excellent electrical, mechanical properties, good integrity with long-operating life after coils wrapped and VPI treatment, widely used for VPI insulation in F-class DC and traction machines.
D050201A: Glass cloth/Mica; D050201B: PET (polyester, Mylar®) film/Mica; D050201C: PET (polyester, Mylar®) film/Mica/Glass cloth; D050201D: Polyimide (Kapton®) film/ Mica.

Data Form

Item Unit Value
D050201A D050201B D050201C D050201D
Normal thickness mm 0.14±0.02 0.14±0.02 0.14±0.02 0.10±0.02
Mica content g/m2 160±13 160±13 140±13 110±10
Glass cloth content g/m2 25±5 - 22±3 -
PET content g/m2 - 42±5 18±2 -
Polyimide Content g/m2 - - - 43±5
Resin content % 9±4 <8 9±4 5±3
Volatile content % <1.0 <1.0 <1.5 <1.0
Tensile strength N/10mm >80 >40 >80 >35
Breakdown Voltage KV/layer 1.5 6 3 5.5
Total weight g/m2 210±10 220±20 200±15 155±10
Thermo Class - F F F H C
Storage(5-20C) Month Six months

Application Notice

  • 1. When wrap, the ideal speed is 120~150r/min.
  • 2. When baking, original condition is 80~90℃/2h.
  • 3. After been impregnated 110℃ for 2~3h,then rise to fixed temperature at 10℃ an hour. Advisable temperature: 150~170℃/10~20h.

Specification

  • 1.Min Qty: 200kg each size in a lot
  • 2. Packing: In Carton
Note:The values noted in above technical specification are given only for our customers' reference and should not be used in writing specifications.
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