Ultra-thin double sided PET tape is a multi-layer adhesive material built with a dimensionally stable polyester film core and coated on both sides with high-tack acrylic adhesive. Designed for narrow bonding perimeters, this tape delivers high dielectric breakdown strength, strong resistance to battery electrolytes, and reliable anti-lifting performance in optical and power electronic assemblies.
Structural Profile and Physical Characteristics
Precision mounting in compact electronics requires a thin bondline that holds its shape under continuous mechanical stress. The rigid PET carrier stops the tape from stretching or pulling out of shape during automated unwind and high-speed pick-and-place processing. This thin structure prevents edge distortion, glue stringing, and thickness variations across large laminations.
- Total thickness options span from 0.01 mm to 0.205 mm, keeping internal housing gaps as thin as possible.
- 180° Peel strength reaches 15 N/25mm or higher on stainless steel, stopping parts from separating under physical shock.
- Working temperature limits range from minus 40°C up to 150°C without cracking the backing or breaking down the glue.
- High initial tack (tested by standard steel ball methods) creates immediate surface anchorage under light application pressure.
- High dielectric strength allows the film layer to act as an electrical insulator inside crowded battery module spaces.
Optical Lens Mounts and Touch Panel Assembly
Laminating camera lenses, sensor glass, and display panels onto frames requires strict thickness control to keep lenses aligned and block out dust. Thick foam tapes add extra height and can shift under shear stress. Double sided PET tape provides a flat, rigid bondline that maintains exact focal distances.
In touch panel manufacturing, clear PET film tape offers over 90% light transmission, preventing haze or visual distortion across the screen. The non-compressible film core resists side impact during drop tests, keeping moisture and dust from entering along the edges. During rotary die-cutting, the tough PET center snaps cleanly under shear force, preventing squeezed-out glue from spoiling optical sensors or screen borders.
Battery Pack Insulation and Cell Stacking
Electric vehicle battery systems and consumer power packs expose adhesive joints to heat cycles, constant vibration, and active chemicals. Double coated polyester tape works as a functional insulator between pouch cells, battery cans, and cooling plates.
- Strong solvent resistance keeps the adhesive from softening or dissolving when exposed to electrolyte fluids, cooling agents, and industrial cleaners.
- High shear holding power locks cell positions in place under continuous static loads, preventing friction and wear between battery terminals.
- Flame-retardant properties meet standard safety rules, stopping localized heat from spreading across cells.
- Low outgassing prevents organic vapors from settling on sensitive circuit boards or electronic controls.
Because the PET backing is ultra-thin, heat generated during charging and discharging transfers straight through to cooling channels, lowering total thermal resistance across the battery assembly.
Engineered for precision electronic assemblies and demanding industrial conversions, double sided PET film tape delivers reliable anchorage, dimensional stability, and thermal endurance across narrow-gap bonding applications.
