Use of cookies
In order to optimize and continuously improve our website, we utilize cookies. By continuing to use the website, you consent to the use of cookies. For more information on cookies, please refer to our Privacy Policy.

Knowledge Bank

WIOPEDIA - The WIOTEC® electroplating encyclopaedia

Knowledge from A - Z



Pigments are organic or inorganic colorants in platelet or powder form that cannot be dissolved. They are often of natural origin, but synthetic production is also possible. In their application, color considerations play the decisive role; there are colored pigments, black and white pigments, and colored and luster pigments. The so-called functional pigments do not represent actual colorants.

The fact that pigments appear colored at all depends on the interaction of the material with light:

  • White effect is due to non-selective light scattering.
  • Color effects are based on selective light absorption with light scattering.
  • Black effect comes from non-selective light absorption.
  • Luster pigments get their optical effect from the directional reflection of refractive transparent pigments or from metallic pigments. Interference phenomena on layers can also produce gloss effects.

Pigments are also used to color coating materials.

This might also interest you ...

Other popular topics that are often clicked on include information on plastic finishing, metal finishing, chrome plating, galvanising, laser engraving or even tin plating:

Any questions? We’ll gladly assist you ...

Any questions?
We’ll gladly assist you ...

WIOTEC® Ense GmbH & Co. KG
Auf den Geeren 9-11
59469 Ense-Höingen, Germany

WIOTEC® Arnsberg GmbH & Co. KG
Wagenbergstraße 55
59759 Arnsberg, Germany

+49 2938 97833-0
+49 2938 97833-20

From metal to precious metal
The company WIOTEC® is your specialist for surface finishing and metalworking. In our electroplating shop, which is managed according to the latest environmental standards, we are capable of finishing both small parts and long parts of up to six meters. This makes us one of the leading and most efficient decorative surface coaters in Europe.

Our most important resource is our employees - with their commitment, competence and experience. Together with them, we work out and develop individual and tailor-made solutions for our customers. From detailed consultation and planning to purchasing, mechanical and chemical pre-treatment, professional electroplating and supplementary services - WIOTEC®'s range of services leaves nothing to be desired.



Call us:

Stacks Image 128

Claudia Schäfer
+49 2938 97833-11

Or write to us:

Brochures, data sheets, etc.