High heat resistant double sided polyimide adhesive tape uses PI film substrate coated silicone adhesive on both sides with release liners on top and bottom. Its core strength is extreme heat resistance: stable adhesion without degumming or residue at continuous 200℃, resisting 260℃ short reflow soldering – ordinary double-sided tape softens and fails around 150℃.
A flexible circuit manufacturer needed double-sided tape for FPC lamination passing 260℃ 30-second reflow. Our double-sided PI tape samples passed without bubbling, degumming or residue post-reflow with stable monthly consumption over 1,000 square meters. Our coating equipment controls adhesive thickness tolerance ±0.003mm for uniform bubble-free lamination. Standard total thickness 0.06~0.2mm, regular substrate thickness 0.025mm, single-side adhesive thickness 0.0175mm, double-side peel strength ≥6N/cm, overall breakdown ≥5kV. For distributors, this staple high-temperature material for electronics, lithium batteries and transformers delivers steady repeat orders with high technical barriers and low client churn post-validation.
Specification Parameters
|
Parameter Item |
Technical Index |
|
Total Thickness Range |
0.06～0.2mm |
|
Maximum Width |
500mm |
|
Regular Substrate Thickness |
0.025mm |
|
Temperature Resistance Class |
Class H (180℃)～Class C (220℃) |
|
Double-Sided Peel Strength |
≥6N/cm |
|
Breakdown Voltage |
≥5kV |
Application Fields
- Lamination bonding of flexible circuit boards
- Fixation and insulation of lithium battery tabs
- Component adhesion under high-temperature environments
- End fixation of transformer copper foil
- Coil fixing and insulation wrapping
Quality Control
Core QC focuses on adhesive uniformity and thermal stability. Adhesive thickness multi-point sampling per batch with tolerance locked within ±0.003mm. Mandatory 168-hour 200℃ aging test; batches with peel retention below 80% rejected. Holding power and residue testing eliminate degumming and residual glue after high-temperature exposure. Only prime substrate and silicone adhesive from major manufacturers used, no recycled raw materials. ISO9001 certified with batch retention for full traceability.
Packaging & Transportation
Rolled with standard rigid paper cores to maintain circular shape, each roll individually PE moisture sealed then packed into dedicated cartons. Transport away from direct sunlight and heat sources. Custom slitting from max 500mm down to 3mm minimum width with burr-free flat edges. Each package labeled with thickness, width, length, batch and production date. EXW and FOB terms supported with sufficient standard stock for fast delivery.
After-sales Service
Pre-sales specialists match thickness and adhesive system based on working temperature and bonded materials. Free sample rolls provided for process testing before bulk orders. Production progress photos and videos shared proactively; urgent orders prioritized. We respond within 8 hours and assign technicians to analyze root causes for degumming, residual glue or insufficient tack issues, delivering optimized solutions. Exclusive client files retain all parameters for seamless repeat orders.
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