the partial repair prodcedure

The Selectron process, colloquially known as tampon plating, is a special galvanic process in which layers are partially deposited. Selectron is particularly suitable for repairing minor damages to specific areas.

The optimal repair procedure for small damages

Selectron is a repair process for repairing surfaces. The electrochemical application of metal allows surfaces to be partially coated. Small damage such as pores or partial imperfections and wear points are systematically sealed using the Selectron process. After selectronizing, the component has a smooth and sealed surface once more.

For larger imperfections, there is also the possibility of spot welding, which we can also offer you. In the case of severe signs of wear, we recommend a repair hard chrome plating of the entire component instead of partial repair. Learn more about the procedure and advantages of Regeneration here.

Damage before the Selectron process:

Impact area before repair with Selectron

Sealed surface after the Selectron process:

Impact area was repaired using the Selectron tampon plating process and is no longer visible

Would you like technical advice?
We are looking forward to your inquiry!

How the Selektron method works

Graphite anodes are used for the Selectron process/tampon plating. These are wrapped with cotton wool and soaked in an electrolyte. The anode is connected to a rectifier and switched positive. The component to be coated represents the cathode and is negatively connected. Finally, the anode soaked in the electrolyte is used to systematically seal the partial imperfection on the component. The process of tampon plating consists of pre-treatment (cleaning), activation (pickling) and metal deposition . The deposited metallic material is finally ground and leveled.

Depending on the surface, various metallic electrolytes are suitable for filling the imperfections. In most cases copper electrolytes are used. However, nickel and cobalt electrolytes are also used to seal small pores. The size of the components is of secondary importance for the Selectron process and must be checked individually for feasibility.

Express service

For orders with increased deadline pressure, you have the option of using our express service. This is agreed upon in direct consultation with our production control and charged via a surcharge.

Initial sampling

Before starting more complex series, we offer you an initial sampling at discounted rates. Here you can convince yourself of the quality of our processing. In addition, together we ideally coordinate our production processes.

Tips for delivery

For optimum quality and short lead times in our production, the delivery condition of the components is one of the decisive factors. Here you will find helpful tips for the delivery of your components.

Betz-Chrom – your partner for strong parts

In the sense of a trustful partnership, you will receive highly qualified technical advice from us that is tailored to your needs. We combine 70 years of experience in surface technology with an innovative and inquisitive corporate culture. Our quality awareness, our occupational health and safety management as well as our measures for environmental protection and energy saving are audited and certified according to DIN standards. As an on-schedule partner with high quality level, we constantly aim to find the optimal process solution for you.