Gloss Black Polyimide Tape (K-650B)
Gloss Black Polyimide Tape | High-Temperature Masking, Electrical Insulation & Light Blocking
Gloss Black PI Film Tape with Silicone Adhesive for Reflow, Wave Soldering, Powder Coating, Repair, and Light-Shielding Applications
Gloss Black Polyimide Tape is made with an opaque black polyimide (PI) film backing coated with a high-temperature silicone pressure-sensitive adhesive (PSA).It is designed for demanding masking, insulation, and protection applications where heat resistance, dimensional stability, and black visual contrast are important.
Compared with standard amber polyimide tape, the gloss black finish offers stronger visual contrast on assemblies and fixtures, which can help improve masking visibility and inspection efficiency, while also suiting applications where light blocking or finish appearance matters.
Key Features & Benefits
- Opaque gloss black PI film for strong visual contrast and light-blocking performance
- High-temperature silicone adhesive for demanding thermal processes
- Suitable for reflow, wave soldering, powder coating, and other high-heat masking workflows
- Good electrical insulation and dimensional stability
- Clean converting support: custom widths, rolls, sheets, log rolls, and die-cut parts
- TDS documentation available upon request for relevant grades and batches
Typical Applications
Electronics & PCB Assembly
- Reflow soldering masking
- Wave soldering masking
- PCB repair and temporary thermal shielding
- Protection of selected areas during electronics assembly
See our PCB Solder Masking Guide.
Industrial High-Temperature Masking
- Powder coating masking
- Masking in high-temperature finishing workflows
- Fixture and tool area protection during heat exposure
See our Powder Coating Masking Guide.
Selected Electrical Insulation
- Coil and lead insulation
- Wire wrapping
- Selected motor and transformer local insulation
See our Electrical Insulation Guide.
Light-Blocking & Visual Identification
- Selected electronic assemblies
- Light shielding where black appearance is required
Engineering Insight: Common Failures to Avoid
Residue After Heat Exposure
- Possible causes: excessive dwell time, sensitive substrate surfaces, aged process conditions, aggressive removal after cooling
- Recommended practice: validate under your actual temperature-time profile; remove slowly at a low peel angle; test first on cosmetic, coated, or sensitive surfaces
Edge Lift During Reflow or Coating
- Possible causes: surface contamination, poor substrate wet-out, wrong tape thickness, insufficient application pressure
- Recommended practice: ensure the surface is clean and dry; select the proper thickness; apply firm pressure to improve contact before heat exposure
Wrong Finish Selection
- Gloss black gives stronger visual contrast and a brighter appearance, while matte black is usually the better choice when lower reflectivity matters. For optical or sensor-related assemblies, always validate the finish by sample before mass use.
Technical Specifications
| Item | K-650B-50 | K-650B-55 | K-650B-60 |
| Film thickness (mm) | 0.025 | 0.025 | 0.025 |
| Total thickness (mm) | 0.05 | 0.055 | 0.06 |
| Adhesion to steel (N/25mm) | 4.0 | 5.0 | 5.5 |
| Tensile strength (N/25mm) | 100 | 100 | 100 |
| Reference heat resistance (°C) | 260 | 260 | 260 |
| Elongation at break (%) | 45 | 45 | 45 |
Note: Heat resistance should always be evaluated against the actual process profile, including peak temperature, dwell time, substrate type, and removal condition. Continuous exposure and short-term exposure are not the same and should be verified during qualification.
Gloss vs Matte vs Amber Polyimide Tape
| Option | Best For | Considerations |
| Gloss Black | High visual contrast, clear masking visibility, strong black appearance, general light-blocking use | May reflect more than matte surfaces |
| Matte Black | Optical, sensor, and low-reflectivity applications | Lower visual “pop” than gloss |
| Amber PI Tape | General high-temperature masking and electrical insulation | Less visual contrast and less light blocking than black PI tape |
Quick Thickness Guidance
- 05mm: better conformability, tighter masking, easier fit on detailed surfaces
- 055–0.06mm: better handling, stronger feel, improved robustness during application and removal
Converting & Customization
- Custom widths and lengths
- Standard rolls, log rolls, jumbo rolls, sheets
- Die-cut dots, discs, strips, and custom shapes
- Optional liner formats for cleaner converting and application
- OEM / ODM support based on drawings or samples
Quality, Documentation & Traceability
We support qualification and purchasing review with:
Downloads
Available upon request:
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FAQ
What is gloss black polyimide tape used for?
What is the difference between gloss black and matte black polyimide tape?
What temperature can gloss black polyimide tape handle?
Will gloss black polyimide tape leave residue after heating?
Is gloss black polyimide tape suitable for optical or sensor applications?
Can this tape be supplied in die-cut or custom formats?
Ready to qualify Gloss Black Polyimide Tape on your production line?
Request a quote or samples with your required thickness, width, roll format, die-cut requirement, and operating temperature profile. Our team can recommend a suitable grade and converting format for your application.
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Troubleshooting – Common issues and solutions
