Battery cells, power boards and high-voltage modules need insulation that survives heat, voltage stress and abuse — a thin generic film punctures or ignites exactly when it matters.
Application-matched insulation die-cuts: high-temperature PI films, flame-retardant PET, aramid paper and mica-composite barriers, die-cut with burr-free edges that will not puncture through.
Not sure which grade fits? Send us your application — our engineer replies with a selection proposal within 24 hours.
Precision die-cut electrical insulation films and fire barriers — PI (Kapton-class), PET, aramid paper and composite barrier materials for batteries, PCBs and power modules.
Insulation parts fail silently and catastrophically. That is why every ROTADIE insulation die-cut is produced with burr control and edge quality as a first-class spec, not an afterthought. For battery projects we supply aramid and composite barriers with thermal-abuse test documentation from the material mill, so your certification path stays short.
| Film types | PI, PET, PP, aramid paper, mica composite |
|---|---|
| Thickness range | 0.025 – 0.5 mm |
| Dielectric strength | 2 – 8 kV/mm (per material) |
| Flame rating | UL94 VTM-0 / V-0 options |
| Temperature range | -60°C to +260°C (PI) |
| Cutting tolerance | ±0.15 mm typical |
| Adhesive lamination | Optional, high-temp grades |
| MOQ | 1 prototype run |
Specification values are typical reference values. Final values are subject to the grade datasheet and test report.
① Define the application — describe the device, the function of the part and the environment it works in.
② Send the drawing — DXF / PDF / STEP, or a dimensioned sketch with tolerances marked.
③ Confirm quantities — prototype quantity and estimated annual volume.
④ Review the proposal — we reply with material options, unit price and tooling cost within 24 hours.
⑤ Sample & validate — typical parts sampled in 3–5 working days (quoted per drawing), then mass production after your approval.
Custom die-cut double-sided adhesive gaskets and pads — 3M, Nitto, tesa and equivalent tapes converted to your exact drawing with tight tolerance, from prototype to mass production.
Custom die-cut foam gaskets and cushions from PORON urethane, EVA, EPDM and silicone foam — dust sealing, water sealing, drop protection and compression set control.
Die-cut EMI/EMC gaskets and shielding materials — electrically conductive foam, conductive fabric, copper/aluminum foil laminates — for enclosure sealing and board-level shielding.
A practical selection guide: surface energy, temperature range, thickness and die-cut format — how engineers should specify double-sided tape before requesting a die-cut quote.
Compression set is the number-one silent killer of foam seals. What it is, how to read the datasheet, and which foam families keep their seal force long-term.
A board-level and enclosure-level design guide for EMI gaskets: how seam geometry, compression force and contact resistance determine whether your EMC test passes.
Engineer reply within 48 hours — free sampling support.
