Flammspritzstrahl, Drahtflammspritzen mit Molybdaen

Electromagnetic Compatibility ( EMC )

The law on Electromagnetic Compatibility (EMC) of electric appliances forces all manufacturers to shield their power units and other sources that absorb electric radiation in order to avoid any influence on devices or on the environment caused by alternating fields. An especially effective method is Thermal Coating. Possible coating materials are zinc, tin, copper, silver, or aluminium. In the section “images” we have pictured coated plastic housings as well as a coated GRP-sample plate.nde Vorteile gegenüber anderen Methoden der Beschichtung bestehen:


The following advantages from other methods of coating are:

  • A very high absorption from 70 db to 95 db depending on the frequency caused by higher coating thicknesses and the lamellar structure of the layer.

  • Layers are solderable.

  • Nearly all metals can be applied on nearly all kinds of plastic.

  • One installation produces a very high coating output of max. 20m2/h at relatively low costs.

  • Existing moulds can be continued to use. The layer adapts itself to all geometrical shapes.


Thermal sprayed coatings have a considerably higher mechanical strength than vapour-deposited layers or electrically conducting lacquers due to freely selectable materials as well as their coat thickness.

Shielding effectiveness of different materials with different coating thicknesses. (to enlarge the images please click on them, also available as pdf-download in “downloads”")

Diagram of the electromagnetic compatibility at 0,5 MHz
0,5 MHz
Diagram of the electromagnetic compatibility at bei 10 MHz
10 MHz
Diagram of the electromagnetic compatibility at bei 100 MHz
100 MHz
Diagram of the electromagnetic compatibility at bei 500 MHz
500 MHz
Diagram of the electromagnetic compatibility at bei 1000 MHz
1000 MHz