Polyimide Tape for SMT Masking & Electrical Insulation
Polyimide film tape engineered for high-temperature PCB masking, motor coil insulation, battery pack protection and die-cut converting. Available with silicone or acrylic adhesive, slit widths from 3 mm, MOQ from 50 rolls, with samples prepared within 24 hours by an ISO 9001 / 14001 / 45001 certified manufacturer.
What Polyimide Tape Is, and Why Engineers Use It
A thin, heat-stable insulation tape for processes where ordinary PET or PVC tapes lose dimensional control.
Polyimide tape is built from amber polyimide film coated with pressure-sensitive adhesive. The film carries the thermal and dielectric workload, while the adhesive is selected for process needs such as clean high-temperature masking, coil wrapping, battery insulation or die-cut placement.
For electrical assemblies, it is commonly specified where Class H insulation behavior, thin profile and high dielectric resistance are required. For manufacturing processes, it protects selected areas during soldering, powder coating, plating or heat exposure, then removes according to the adhesive grade and dwell condition.
ChenTao manufacturing fit
ChenTao can supply finished rolls, narrow slit widths, log rolls, linered formats and die-cut shapes, allowing the same material family to move from engineering sample to production-line procurement.
Where ChenTao Polyimide Tape Fits
Four common industrial use cases for heat resistance, clean masking and compact electrical insulation.
SMT & Wave Solder Masking
Masks gold fingers, connectors and selected PCB areas during soldering or localized heat exposure.
Motor Coil & Magnet Wire Insulation
Provides thin phase insulation, end-turn bundling and thermal stability in compact electrical windings.
Battery Pack Insulation
Used as a thin insulating barrier around cells, tabs, busbar areas and temperature-sensitive pack structures.
Powder Coating & Plating Masking
Protects edges, holes and contact points where clean, heat-resistant temporary coverage is required.
Full Technical Datasheet (TDS)
Conservative typical values based on ChenTao ranges and public mid-market polyimide tape specifications. Final limits should be confirmed by ChenTao production testing.
| Property | Test Method | Unit | Value |
|---|---|---|---|
| Backing material | Material ID | - | Polyimide film, amber or black options |
| Adhesive system | Material ID | - | Silicone standard; acrylic / linered / low-outgassing options |
| Total thickness | ASTM D3652 | mm | 0.055 / 0.063 / 0.089 / 0.10 (±0.01 target) |
| Backing thickness | ASTM D3652 | mm | 0.025 / 0.050 standard film gauges |
| Tensile strength | ASTM D3759 | N/cm | ≥40 typical, grade dependent |
| Elongation at break | ASTM D3759 | % | ≥35 typical |
| Adhesion to steel | ASTM D3330 | N/cm | 2.2-3.3 for standard silicone grades |
| Dielectric strength | ASTM D1000 | kV | ≥6.0 on 1 mil film tape; ≥10.0 available on 2 mil film tape |
| Temperature rating | IEC 60454 / IEC 60085 | °C | 180 continuous electrical insulation / 260 short-term process exposure |
| Operating range | Internal QA | °C | -73 to 260, depending on adhesive and dwell condition |
| Color options | Visual | - | Amber standard; black and custom colors on request |
| Shelf life | Internal QA | months | 12 minimum when sealed at 23°C / 50% RH |
Values are typical, not specification limits. Refer to the downloadable TDS PDF for full tolerance windows.
Polyimide vs Polyester vs PTFE-Coated Glass vs Acetate Cloth
Use this table to select the tape family before final adhesive and thickness qualification.
| Property | ChenTao Polyimide Tape | Polyester Tape | PTFE-Coated Glass Tape | Acetate Cloth Tape |
|---|---|---|---|---|
| Max continuous temp | 180°C insulation / 260°C process | 130-155°C | 200°C+ | 130-155°C |
| Dielectric strength | ≥6 kV standard | Good | Fair | Good |
| Conformability | Good | Good | Fair | Excellent |
| Hand tearable | No | No | No | Yes |
| Relative cost | $$$ | $$ | $$$$ | $$ |
| Best fit | SMT masking, coil insulation, battery barriers | General insulation and wrapping | Release surface and high heat process aid | Motor winding with hand-tear workflow |
Customization Options
Send thickness, width, adhesive, liner and application details so ChenTao can match the tape to your production process.
Width, Length & Slit Tolerance
Chemistry & Handling
Private Label & Logistics
Engineering Scenario - SMT Masking for PCB Assembly
A typical process-control framework for specifying polyimide tape in electronics production.
How ChenTao's polyimide tape is engineered into SMT masking production
Electronics engineers usually need a thin tape that masks contacts and connectors during soldering, holds position during heat exposure, and removes according to the process window without leaving unacceptable residue.
ChenTao matches film thickness, adhesive type, roll width and liner choice to the assembly process. For repeat production, narrow slitting or die-cut shapes can reduce hand trimming while batch QA reports keep peel, dielectric and thickness checks traceable.
Samples, quoting and batch documentation are kept practical so engineers can move from lab validation to repeat purchasing with fewer specification gaps.
Certifications & Material Compliance
Click any card to request the document package. ChenTao will email the requested file set within 24 hours.
Frequently Asked Questions
Engineers Also Specified
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