Surface finish
EPD deposits ceramic or metal particles using electricity. It builds thick, uniform functional coatings.
What it is
EPD (Electrophoretic Deposition) uses an electric field to move charged ceramic or metal particles onto a part. The particles build a uniform layer, which is then dried or sintered. It is used for technical coatings like wear layers, insulation, and biomedical surfaces.
How it works
Prepare suspension
Charged particles are suspended in a liquid.
Apply field
The part and a counter-electrode create an electric field.
Deposit
Particles migrate and pack onto the surface.
Dry & sinter
The layer is dried and often sintered to bond.
Why choose it
Builds coatings other methods cannot.
Ceramic layers resist wear and heat.
Coats curves and porous parts.
Used in medical coatings.
Typical specs
| Specification | Typical range / value | Notes |
|---|---|---|
| Materials | Alumina, zirconia, hydroxyapatite, metals | |
| Thickness | 10 – 500 µm controllable | |
| Process | Electric-field deposition + sinter | |
| Base materials | Metal, ceramic, some polymers |
Best applications
Wear-resistant ceramic layers.
Implant and bone-like coatings.
Insulating or functional films.
Porous ceramic structures.
Materials
We apply EPD (Electrophoretic Deposition) to the materials below. Not sure if your material qualifies? Our engineers will confirm it for free.
Our solution
We use EPD to build ceramic and composite coatings on difficult shapes. We tune the suspension and sinter step to your performance need.
Design tips
Best for ceramic or composite layers.
High temp may limit base materials.
Validate with a sample coating.
FAQ