Dielectric Powder Coating for EVs and ESS
High-voltage systems fail at the weak points: a thin spot on a busbar bend, a pinhole on a battery tray weld, a bare edge on a cold plate. Wright Coating Technologies applies functional epoxy dielectric powder coatings that put a uniform, pinhole-free insulating layer exactly where EV and energy storage components need it, at the film thickness your spec calls for, verified part by part.
We run multiple qualified dielectric and companion powder grades in different colors, covering thin-film edge protection through heavy-build busbar insulation. We work with OEMs and Tier 1 suppliers from first prototype through PPAP and full production, out of our Kalamazoo, Michigan plant. Six coating lines, ISO 9001:2015 registered since 1997, coating parts since 1979.
The Wright Advantage
Performance confirmed. 100% production hipot testing available, so parts ship with dielectric performance proven, not assumed.
The Wright process. An integrated two-coat powder coating line that builds the film in one pass through the plant and reduces pinhole failures.
Coating where you need it. Creative masking and selective powder removal keep ground paths, contact pads, and threads bare, with clean transition lines.
The experience you need. We run many dielectric powders across many industries and part geometries, so picking the grade that wins on your part is a call we have made before.
The Wright input. Bring us the part early and we will weigh in on product features and powder selection, so the part is designed for successful dielectric coating instead of coated around a problem.
Applications
- Battery enclosures, covers, lids, side plates, and structural trays
- Cooling tubes, chill plates, and cold plates
- Busbars, connectors, and power distribution units
- Inverter EMI shields, module covers, and brackets with masked ground contacts
- Coils, stators, rotors, and motor windings
- Sensors and sensing assemblies
- Stationary ESS and BESS cabinet frames, rack rails, and module enclosures
We coat EV battery components and alternative energy assemblies on the same lines that run our fluidized-bed nylon coating work, so dielectric programs get automotive process discipline by default.
Start with the print
Send us the drawing, the substrate, and the test voltage, or just the problem if you do not have a spec yet. Our engineering team comes back with a coating recommendation, masking plan, and quote. Use the Request a Quote form or call (269) 344-8195, Monday through Friday, 7:00 AM to 4:00 PM EST.
