Are you an existing customer or do you want to contact us in a different matter? We look forward to hearing from you and will get back to you as soon as possible.

Alternatively, you may want to contact directly one of our locations or our holding company.

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Standorte Coatinc Bochum Coatinc Rhein-Main Coatinc Peine Coatinc Becker Saarlouis Coatinc Siegen Coatinc PreGa Coatinc24 Coatinc Würzburg Coatinc Ninove Coatinc NinoCoat Zinkpower Malacky Galvanizadora California California Galvanizing & Steel Structures Coatinc Alblasserdam Coatinc24 Amsterdam Coatinc Hop Coatinc De Meern Coatinc Groningen Coatinc Groningen Poedercoat Coatinc Mook Coatinc Prega NL Coatinc Roermond Coatinc Anox Zinkpower Promptus Zinkpower Ostrava Zinkpower Roudnice Marmara-Siegener Galvaniz Marmara-Siegener Galvaniz Marmara-Siegener Galvaniz Rezinal Verzinkerij Lenssen ESP Pulverbeschichtung ESP Pulverbeschichtung

If you wish to talk to our management team, please get in touch with one of our points of contact, who will take care of any request which goes beyond pure surface finishing.


The Coatinc Company Holding GmbH
Steinstraße 5
57072 Siegen, Germany
Phone: +49 271 43478
Fax: +49 271 46869

Your contact person
Diana Posner


The Coatinc Company Holding GmbH
Steinstraße 5
57072 Siegen, Germany
Phone: +49 271 43478
Fax: +49 271 46869

Your contact person:
Petra Böhmer

Contact Holding company

The Coatinc Company Holding GmbH

Carolinenglückstraße 6-10
44793 Bochum, Germany
Phone: +49 234 52905-0
Fax: +49 234 52905-15

Your contact person:
Silke Sandmeier

Surface technology

Surface technology aims to make surfaces usable for specific application purposes through coating. Surfaces need to fulfil the requirements expected of them, such as wear and corrosion resistance, strength, optics, shine, colour, etc. This is where the type of layer and coating are crucial, as well as the materials.

Substrate properties

Substrate properties are described by their bonding states between the elementary components and their spatial structure and distribution (saturated bonding states). Bonding states (valances) are differentiated:

  • main valences: ionic, covelent and metal bonding;
  • semi-valences: e.g. electrostatic interaction, the basic properties are defined by the type of chemical bonding.

Characteristics of metal bonding

There is a strong force between the metal ions (+) and the ‘free’ electrons (also known as electron gas or electron gas cloud). The so-called metal grid occurs. This is distinguished by high resistance, good ductility, extremely good conductibility for heat and electricity as well as partially high melting and evaporation temperatures.

Each processing procedure leads to changes in structure and texture. Consequences of this are changes in the electrochemical potential, solidification/hardening or also changes to the surface profile for example changes to the electromechanical potential, right up to negative values and susceptibility to corrosion resulting from this. Mechanical tensions partially develop as a result of solidification/hardening of the surface zone which, for example, can lead to insufficient adherence between surface and coat in a coating.

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