Polyimide Tape With Acrylic Adhesive
Polyimide Tape With Acrylic Adhesive is manufactured by OPALUS PACK for electronics insulation, label bonding, and component holding where an acrylic adhesive system is preferred over silicone adhesive. This tape is built with a polyimide film backing and acrylic pressure sensitive adhesive to support long-term holding, stable peel adhesion, and lower silicone transfer concern in production. It is a practical choice for moderate high-temperature use where clean surface interaction and bonding reliability matter more than extreme heat-release performance.
- Backing Material: Polyimide film
- Adhesive System: Acrylic pressure sensitive adhesive
- Color: Amber / brown, black optional
- Typical Thickness: 0.05 – 0.08 mm
- Width Range: 3 mm – 500 mm
- Supply Format: Roll, log roll, or die-cut parts
Product Overview
This acrylic polyimide tape is designed for factories that need more than short-term masking performance. In many electronics lines, the tape is left in place for insulation, identification, holding, or surface protection. In these cases, the adhesive must keep contact after heat exposure, handling, and storage instead of only releasing cleanly after a high-temperature process.
The acrylic adhesive system gives this product a different working profile from silicone adhesive polyimide tape. Silicone adhesive is often chosen for higher-temperature masking and easier thermal release. Acrylic adhesive is more often selected when the application needs stronger long-term holding, good surface wetting, and reduced silicone-related contamination risk.
In OPALUS PACK sample testing on clean stainless steel, peel adhesion increased by about 12-18% after 24-72 hours of dwell time. This adhesion aging behavior is important for label bonding, insulation wrapping, and electronic component fixing because the bond continues to develop after the tape is applied. Actual results can vary with surface energy, surface cleanliness, pressure, temperature, and removal timing.
Benefits
- Supports long-term bonding stability after dwell time
- Helps reduce silicone transfer concern in sensitive assemblies
- Provides stable peel adhesion on clean metal and coated surfaces
- Performs well in moderate high-temperature applications
- Improves label and barcode bonding reliability
- Suitable for insulation parts that remain in place after assembly
How does acrylic adhesive behave after the tape is applied?
Acrylic adhesive does not always show its final bond strength immediately. After pressure is applied, the adhesive slowly wets into fine surface texture, which can improve peel adhesion over time. This is why dwell time matters. In practical use, a tape that feels only moderately strong at first can become more stable after several hours or days, especially on stainless steel, aluminum, glass, and some engineering plastics. For low-surface-energy plastics, oily surfaces, or textured coatings, trial testing is still recommended before production use.
TDS
| Item | Typical Value |
|---|---|
| Backing Material | Polyimide film |
| Adhesive Type | Acrylic pressure sensitive adhesive |
| Total Thickness | 0.05 – 0.08 mm |
| Peel Adhesion on Stainless Steel | 2.5 – 4.0 N/25mm after 24h dwell |
| Observed Adhesion Aging | Approx. 12 – 18% increase after 24 – 72h dwell on clean SS |
| Tensile Strength | >= 115 N/25mm |
| Elongation at Break | >= 40% |
| Dielectric Strength | >= 6.0 kV |
| Short-term Temperature Resistance | Up to 180 C |
| Long-term Service Temperature | 150 C typical |
| Residue Observation | Low residue under controlled removal conditions |
| Outgassing Observation | Application testing recommended for enclosed electronic assemblies |
Applications
- Electrical insulation wrapping for coils, wires, and connectors
- Label and barcode bonding on electronic parts
- Component holding during assembly and inspection
- PCB edge protection where silicone transfer is a concern
- Film cover protection on metal or plastic substrates
- Insulation bonding in moderate heat process environments
What is the main difference from silicone adhesive polyimide tape?
The main difference is the selection priority. Silicone adhesive tape is usually better when the job requires higher heat resistance and clean release after a short masking cycle. Polyimide tape with acrylic adhesive is better suited when the tape must stay bonded, support insulation, or hold labels and components over time. It is also useful when silicone transfer could affect printing, coating, bonding, or later assembly steps. For buyers comparing both options, the decision should be based on heat level, dwell time, removal requirement, and the surface process after tape use.
FAQ
Can this tape replace silicone adhesive polyimide tape?
Not in every case. It is better for long-term holding and lower silicone transfer concern, while silicone adhesive is usually preferred for higher-temperature release masking. Q2: Is it suitable for label bonding?
Yes. The acrylic adhesive system is commonly used where labels, barcodes, or insulation films need stable adhesion after dwell time. Q3: Will it leave residue after heating?
Residue depends on temperature, dwell time, surface type, and removal angle. Testing under real process conditions is recommended. Q4: What surfaces should be tested first?
Low-surface-energy plastics, rough coatings, oily metals, and painted surfaces should be tested before mass production.