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Glass / Mica / PET Film Tape is a lamination of uncalcined muscovite mica paper with PET film one side and glass cloth on the other, making it a three layer high-performing mica tape. What makes this tape truly special is its unique blend of high tensile-strength imparted by glass cloth, strong electrical-resistance borrowed from the PET film, and superior thermal-endurance brought about by the use of best-quality mica there is. These tapes can withstand the rigorous overhang taping operation through sharp bends and curves without loosing their insulation value. They can be supplied in two different insulation classes. Class H insulation uses only the high thermal-grade silicone resin or modified polyester resin as a binder, whereas Class F insulation uses an epoxy resin as a binder.
Less space constraints give way to a thicker insulation for the coil overhangs. An additional fourth layer of PET film may also be laminated on the glass cloth side. This PGMP Tape has an increased dielectric value, better tensile-strength and provides a seamless mica tape-lapping on the coils.
APPLICATIONOverhang Insulation of the coils / bars in HT motors and generators due to its high thermal, dielectric and mechanical values.
PGMP wrappers are used for ground-insulation in HT motors and generators as well.
Superior flexibility and high mechanical-strength, renders our GMP / PGMP tapes hand as well as machine-taping compatible.
AVAILABILITYTape roll / Folium /Wrapper:
Length : 25 – 200 m
Width : 15 – 1000 mm
12 months at ≤ 20 °C
| Properties | Test Method | Unit | Value | Value | Value | Value |
|---|---|---|---|---|---|---|
| Nominal Thickness | IEC 60371 – 2 | mm | 0.1±0.01 | 0.13±0.01 | 0.16±0.02 | 0.2±0.02 |
| Total Substance | IEC 60371 – 2 | g/m² | 145±10 | 190±15 | 240±20 | 300±25 |
| Mica Paper | IEC 60371 – 2 | g/m² | 80±5 | 120±9 | 160±12 | 200±15 |
| Glass Content | IEC 60371 – 2 | g/m² | 33±2 | 33±2 | 23±2 | 23±2 |
| PET Film | IEC 60371 – 2 | g/m² | 17±2 | 17±2 | 32±2 | 32±2 |
| Resin Content | IEC 60371 – 2 | g/m² | 15±2 | 20±3 | 25±5 | 30±5 |
| Tensile Strength | IEC 60371 – 2 | N/cm | ≥ 150 | ≥ 120 | ≥ 120 | ≥ 120 |
| Breakdown Voltage | IEC 60243 – 1 | Kv | > 4 | > 6 | > 6 | > 6 |
| Volatile Contents | IEC 60371 – 2 | % | ≤ 0.5 | ≤ 0.5 | ≤ 0.5 | ≤ 0.5 |
Data is based on tests performed by Ruby Mica. Users are advised to verify and ensure suitability for Intended applications. The above product can be tailored according to your desired specifications.
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Giridih, Jharkhand 
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