Electro - Polishing can be simply described as the reverse of electro plating. In practice the work piece is connected anodically to a D.C power source and immersed in a special electrolyte. Current is applied and flows from the anodic work piece to the cathode removing material at a controlled rate.

During electro polishing metal removal takes place mostly at the peaks of the surface profile producing a smooth, reflective, chemically clean finish (see more under techinical - finishes).

The Kent polishing team can advise the customer on fabrication techniques and material choice to ensure the required finish is reached.

On site facilities include:

Electro - Polishing:
- Tank volume: 25,000 l.
- Twin rectifier system – 10,000 A.
- Air agitated rinse tank for large volume polishing
- Fully protected wash down.

Dip - Pickling:
- Tank volume: 19,000 l.
- Air agitated rinse tank.
- Fully protected wash down.

Passivation:
- Nitric dip tank and wash down.

Process

Preparation:
- Rinse
- Degrease

Pickle:
- Localised pickle
- Dip pickle
- Rinse
(Nitric passivation)

Electro polishing:
- Electro polish
- Rinse
- Nitric passivation
- Rinse
- Drying