PI mica tape
Product Category:
Mica Tape
Keywords:
Yuefeng Mica
- Description
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- Commodity name: PI mica tape
Class H (200°C+) Oil Resistant High VoltageINSULATION TAPEPolyimide Film Mica Tape (PI Series)
Premium insulation tape combining high-quality Phlogopite/Muscovite mica paper with Polyimide (Kapton) film. Designed for traction motors and equipment operating in extreme environments up to 260°C.
- 🌡️
Extreme Temp: Continuous operation at 260°C.- 💧
Chemical Inert: Resistant to oil, solvents, and radiation.- ⚡
High Dielectric: > 6000V Breakdown Voltage per layer.Technical Specifications
Property Standard Value / Range Composition Polyimide Film + Mica Paper + Silicone Resin Thermal Class Class H (180°C) / Class C (200°C - 260°C) Total Thickness 0.08mm - 0.15mm (Nominal) Mica Content > 100 g/m² Dielectric Strength > 40 kV/mm Tensile Strength > 30 N/cm Standard Width 6mm, 10mm, 12mm, 15mm, 20mm (Slitting Available) Target Applications
🚅 Traction Motors
Main insulation for railway and electric vehicle motors requiring high thermal endurance.
🛢️ Submersible Pumps
Excellent oil and water resistance makes it ideal for oil rig pumps and underwater motors.
🚀 Aerospace
Lightweight, radiation-resistant insulation for critical aerospace and military components.
Frequently Asked Questions
What is PI mica tape used for?
PI mica tape (Polyimide film mica tape) is used for the insulation of high-voltage motors, traction motors, and special motors that operate in harsh environments (high temp, oil, radiation). It serves as the main ground insulation or turn-to-turn insulation.What is the temperature rating of PI mica tape?
It is typically rated as Class H (180°C) or Class C (200°C - 220°C). The polyimide film backing allows it to withstand short-term spikes up to 400°C without melting.What is the difference between PI mica tape and glass mica tape?
PI mica tape uses Polyimide film as reinforcement, making it thinner, smoother, and more resistant to radiation and chemicals than Glass cloth mica tape. It also has higher dielectric strength per millimeter.Is PI mica tape oil resistant?
Yes, excellent oil resistance is a key feature. It is widely used in submersible oil pumps and transformers where the insulation is in direct contact with mineral oils.Can I use it for fire-resistant cables?
Yes, primarily Phlogopite PI mica tape. It acts as a flame barrier, ensuring the circuit integrity even when the cable is exposed to direct fire (up to 750°C-1000°C).What widths are available?
We can slit the tape to any width from 5mm up to 1000mm. Common widths for motor winding are 10mm, 15mm, 20mm, and 25mm. Standard roll length is 30m or 50m.Is this tape suitable for VPI (Vacuum Pressure Impregnation)?
Standard PI film tape is not porous, so it impedes resin penetration. However, we offer specific VPI-compatible versions with perforated film or reduced resin content for better impregnation.What is the shelf life of PI mica tape?
When stored in a dry, cool environment (below 25°C), the shelf life is typically 6 to 12 months. It should be kept away from direct sunlight and moisture.Does it resist radiation?
Yes, Polyimide film has exceptional radiation resistance, making this tape suitable for nuclear power plants and aerospace applications.Can I get a free sample for testing?
Yes, we provide free sample rolls for testing. Please contact our sales team with your required width and specifications.
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Company Address: Wushi Industrial Park, Xingwang Road, Pingjiang High-tech Industrial Park, Wushi Town, Pingjiang County, Hunan Province
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