Kapton Tape for LED Lighting & Power Supplies
LED and power-supply boards live in heat: lead-free reflow peaks at 245–260°C. FUNSMT Kapton polyimide tape masks solder keep-outs, insulates transformer windings, and splices near ovens — rated for continuous 260°C service with clean, residue-free removal after the cycle.
Reflow solder masking that survives the profile
LED boards need precise keep-out zones — connectors, test points, and lens seats that must stay solder-free. Kapton tape holds its edge through the full lead-free profile (preheat, soak, 245–260°C peak) and peels clean afterward. One roll in 8–50 mm widths covers everything from fine-pitch masking to board-edge protection.
Transformer and inductor insulation in drivers
LED drivers and switch-mode power supplies wrap transformer windings and insulate high-voltage sections with polyimide tape for its dielectric strength and thermal endurance. Consistent thickness and clean unwind matter here — wrinkled or stretched tape creates weak spots in the insulation barrier.
High-temperature splicing and bundling
Near reflow ovens and curing stations, standard tapes soften and fail. Kapton splice tape joins high-temp process carriers, and Kapton bundling keeps wire harnesses and heat-sink assemblies tidy through thermal cycling — one material across masking, insulation, and splicing simplifies your approved-materials list.
Kapton Application FAQs
What temperature can Kapton tape withstand?
Polyimide (Kapton) tape handles continuous service around 260°C and short excursions higher, which covers lead-free reflow profiles peaking at 245–260°C. It leaves no adhesive residue when removed after the thermal cycle — the key reason it is specified for solder masking.
Where is Kapton tape used on LED lines?
Three main spots: masking LED solder pads and keep-out zones during wave/selective soldering; insulating transformer and inductor windings in LED drivers; and high-temperature splicing or bundling near reflow ovens. Widths from 8 mm for precision masking to 50+ mm for wrapping are typical.
Can Kapton tape be used for 3D printing or other high-heat uses?
Yes — its heat resistance and clean release make it popular for heated print beds and general high-temperature masking. For SMT-focused buyers, the same roll that masks a PCB can insulate a power-supply transformer.
How is Kapton different from regular high-temp tape?
True polyimide film keeps dielectric strength and dimensional stability across the full reflow cycle, while cheaper "high-temp" PET tapes soften above ~150°C and can leave residue. Check the film material — polyimide — not just the marketing claim.
Get Kapton tape matched to your process
Tell us your peak reflow temperature, masking widths, and insulation requirements — we will recommend the right polyimide thickness and width, and ship samples from our U.S. warehouse for process validation.
Request Samples / Get a Quote