susie@jxgreentape.com
Black Kapton Tape is a polyimide masking and protection tape with a black surface treatment that offers the same high-temperature resistance, electrical insulation and dimensional stability as standard PI tapes while improving light/heat absorption and visual contrast for masking applications. Typical uses include high-temperature masking for reflow, powder coating and anodizing, circuit repair and thermal protection during device refurbishment, 3D-printer bed and fixture masking, coil and transformer winding insulation, and as a heat-resistant reinforcement or splice material in composite processes. For vacuum bagging and primary vacuum seals, specialized sealant tapes are normally preferred; polyimide tape is best presented as a heat-resistant reinforcement or splice/patch option and should be validated for any critical sealing or long-term outdoor exposure.
Black Kapton Tape, also known as black polyimide tape or black PI tape, is a premium high-temperature adhesive solution featuring an opaque black polyimide film backing coated with silicone pressure-sensitive adhesive. This versatile tape is renowned for its exceptional thermal stability, electrical insulation, light shielding, and durability, making it indispensable in industries such as electronics, aerospace, automotive, and manufacturing.
The black polyimide substrate, typically 0.025mm (1 mil) thick, combined with silicone adhesive, results in a total thickness of approximately 0.06mm (2.5 mil), with customizable options ranging from 0.025mm to 0.125mm. The temperature range typically reaches ~260°C continuously, and up to ~280°C for short periods, depending on the material and adhesive formulation. Compliant with RoHS and REACH standards, our black Kapton tape offers no-residue removal, excellent chemical resistance to solvents, acids, and oils, and is available in widths from 3mm to 500mm, with standard roll lengths of 33m to 66m on a 3-inch core. As an experienced black polyimide tape supplier, we ensure superior performance with optional PET fluorine release liners for easy die-cutting and application, and variants loaded with conductive carbons for ESD protection.
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Item NO. |
Film Thickness（MM） |
Total Thickness |
Adhesion to Steel（N/25mm） |
Tensile Strenth（kg/25mm） |
Heat Resistance（℃） |
Elongation at Break（%） |
|
J-630B |
0.025 |
0.05 |
4 |
10 |
260 |
45 |
|
J-630B |
0.025 |
0.055 |
5 |
10 |
260 |
45 |
|
J-630B |
0.025 |
0.06 |
5.5 |
10 |
260 |
45 |
|
|
|
|
|
|
|
|
· High-Temperature Resistance: Endures extreme conditions from -269°C to 260°C continuously, with short-term tolerance up to 280°C, ideal for high-heat environments without compromising integrity.
· Excellent Electrical Insulation: Provides high dielectric strength and insulation, preventing short circuits and electrical damage in high-voltage applications.
· Light Shielding and Aesthetics: Opaque black coloring blocks up to 100% of low light and 70% of strong light, offering good shielding, low reflectivity, and a uniform matte appearance for enhanced aesthetics.
· Strong Adhesion and Durability: Silicone adhesive ensures robust bonding, no residue upon removal, corrosion resistance, and mechanical stability with high tensile strength.
· Chemical and Environmental Resistance: With excellent resistance to most chemicals, oils, and solvents (depending on concentration and exposure time). In highly corrosive environments, compatibility testing is recommended.
· Customizable and Versatile: Available in various thicknesses, widths, and with optional conductive additives for ESD protection; supports die-cutting for precise shapes and easy application.
· Electronics and Circuit Board Assembly: Used for masking during reflow soldering, protecting components, and insulating PCBs to prevent residue and ensure reliability in high-temperature processes.
· Aerospace and Automotive: Serves as heat shields, wire harness insulation, and protective barriers in engines, spacecraft, and vehicles, resisting extreme temperatures, chemicals, and vibrations.
· Electrical Insulation and Coil Wrapping: Essential for insulating motors, transformers, capacitors, and coils, providing dielectric protection and bundling in high-heat electrical devices.
· 3D Printing and Mobile Device Repair: Acts as a build surface adhesive for 3D printers to prevent warping; protects circuit boards during screen repairs with heat resistance and insulation.
· Industrial Masking and Powder Coating: Protects surfaces during high-temperature spraying, powder coating, electroplating, and SMT processes, with easy removal and no residue.
· Vacuum Bagging and Splicing: Used for sealing vacuum bags in composites manufacturing and splicing silicone-coated papers/films, offering reinforcement and high-strength adhesion.
As a black Kapton tape manufacturer, we focus on material consistency, process control, and application-driven customization, specializing in producing high-quality black polyimide tape and black PI tape for demanding industrial applications. Our products are engineered with precision, offering OEM and ODM services to meet your specific needs.
A1:Black Kapton Tape offers superior high-temperature resistance, with a continuous operating temperature up to 260°C and short-term exposure up to 280°C. This makes it ideal for demanding applications such as PCB reflow soldering, powder coating, anodizing, and thermal protection during device refurbishment. The black polyimide film enhances visual contrast for masking, and its silicone adhesive ensures strong bonding without residue after removal, even in high-temperature environments.
A2:Black Kapton Tape is not designed for primary vacuum sealing. While it offers low outgassing and is suitable for temporary reinforcement or fixing in vacuum environments, it is better suited for tasks such as component masking or reinforcement in applications like composite manufacturing. For permanent vacuum sealing, specialized sealing tapes that are specifically designed for such environments should be used.
A3:Black Kapton Tape is highly effective in electrical insulation due to its high dielectric strength and excellent resistance to heat. It is widely used in applications such as motor insulation, transformer winding, and electrical cables where both high temperature and electrical isolation are required. With a continuous temperature tolerance of up to 260°C, it maintains its insulating properties under high voltage conditions, making it a reliable choice for high-performance electrical systems.
A4:Black Kapton Tape is ideal for many industrial applications, but long-term outdoor exposure and UV radiation may cause degradation. It is not recommended for permanent outdoor use unless it is in a protected environment or under controlled conditions. For applications that involve exposure to UV light or harsh weather, using a UV-resistant alternative or applying a protective coating over the tape is advised to prevent potential degradation over time.
Black Kapton Tape: Choosing Matte or Gloss for Optical & Display Assemblies
