Polyimide Tape 4mm x 33m for Heat Insulation
Polyimide Tape 4mm x 33m
Polyimide Tape 4mm x 33m is a heat resistant PI film adhesive tape designed for electrical insulation, PCB protection, motor winding, and industrial high temperature processing. It combines narrow-width handling, silicone adhesive stability, dielectric insulation, and controlled clean removal in suitable masking applications. This 4 mm × 33 m specification is suitable for precision wrapping, component insulation, and OEM industrial supply projects.
What is Polyimide Tape 4mm x 33m?
Polyimide Tape 4mm x 33m is a pressure-sensitive tape made from polyimide (PI) film backing coated with silicone adhesive for demanding electrical and industrial applications. It is commonly used where heat resistance, electrical insulation, narrow-width application, and process stability are required. Compared with general insulation tapes, this PI film adhesive tape is more suitable for electric motor insulation, PCB circuit protection, transformer wrapping, high voltage insulation areas, and precision industrial applications requiring heat-resistant dielectric materials.
Polyimide Tape Model List
Product Introduction

Core Advantages
- Narrow 4 mm width
Designed for precision wrapping, component insulation, edge masking, and small-area protection in industrial and electronic applications. - Polyimide film backing
Offers heat resistance, dielectric insulation, and dimensional stability for motors, transformers, PCB assemblies, and electrical equipment. - Silicone adhesive system
Supports stable adhesion during elevated-temperature processing and controlled clean removal in suitable masking applications. - 33 m industrial roll length
Suitable for workshop use, maintenance applications, industrial assembly lines, and repeated insulation or masking operations. - OEM and jumbo roll support
Available for jumbo roll supply, wholesale converting, slitting, die cutting, and custom industrial packaging.
Typical Applications
- Electric motor insulation wrapping
- PCB board circuit protection
- Transformer insulation and masking
- High voltage dielectric protection
- 3D printer and circuit area insulation
- Heat press insulation layer protection
- Narrow-area solder masking
- Custom industrial insulation parts
Product Advantages
- Suitable for high temperature electrical insulation environments
- Narrow width supports precise industrial application
- Good dielectric performance and dimensional stability
- Suitable for masking, wrapping, and insulation
- Supports jumbo roll wholesale and OEM converting
- Suitable for industrial use, maintenance, and bulk supply


Customized Service
1. Size Customization
- Width customization
- Length customization
- Roll diameter customization
- Core size customization
2. Material / Structure Options
- Different PI film thickness selections
- Release liner option
- Single roll, log roll, or sheet format
- Custom die-cut insulation parts
3. Packaging Customization
- Label customization
- OPP bag
- PVC box
- Carton
- Custom export packaging
4. Supply Capability
- Jumbo roll supply
- Log roll supply
- Precision slitting service
- OEM / ODM converting support
FAQ — Polyimide Tape 4mm x 33m

Q1 | What is Polyimide Tape 4mm x 33m used for?
It is mainly used for electric motor insulation, PCB protection, transformer wrapping, high voltage dielectric areas, and narrow-width industrial masking or insulation applications.
Q2 | Is 4 mm width suitable for precision applications?
Yes. The 4 mm width is suitable for small-area wrapping, edge masking, component insulation, and other precision industrial processes requiring narrow tape formats.
Q3 | Can it be used for electric motor insulation?
Yes. Polyimide film tape is widely used in electric motor insulation because of its heat resistance, dielectric properties, and dimensional stability.
Q4 | Is it suitable for PCB board and circuit protection?
Yes. It can be used for PCB masking, circuit protection, soldering process protection, and temporary insulation in electronics manufacturing.
Q5 | What adhesive system is used?
This product uses silicone adhesive, which is suitable for elevated temperature insulation, masking, and industrial protection applications.
Q6 | Do you support jumbo roll or wholesale supply?
Yes. JIAOTAOTAO supports jumbo roll supply, wholesale converting, slitting, custom widths, and OEM industrial packaging.
Q7 | Is it suitable for high voltage insulation areas?
Yes. Polyimide film material is commonly used in dielectric insulation applications where heat resistance and electrical insulation are required.
Q8 | Can you provide custom sizes or die-cut parts?
Yes. Width, length, core size, roll diameter, and die-cut insulation formats can be customized according to project requirements.
Q9 | Are samples and bulk supply available?
Yes. Sample support and industrial bulk supply are available. Please contact JIAOTAOTAO through the inquiry page for specification confirmation and quotation.
Need help choosing the right industrial tape?
Send us your application details, including temperature, surface material, size, quantity and current problem. Our team will help recommend a suitable tape material or custom die-cut solution.
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