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Bridgeville PA 15017
The aluminum coating is applied in a high vacuum. The 99.99 % pure aluminum is vaporized within a short period of time and is deposited on the plastic surface. The thickness of the coating is approx. 2.5 µm. This makes a shielding effect of 30-40 dB possible in the frequency range of 30 to 1000 MHz. The special aluminum coating is also characterized by good adhesion. To achieve an even better shielding effect, other coating thicknesses are available on request.
The non-conducting material used for plastic cases, for example ABS and PC, has advantages in voltage and contact protection compared with metal materials. It behaves like an insulator.
For devices that cause electromagnetic interference (see also attachment below) or whose operation is impaired by such interference, plastic cases without special measures offer only moderate protection.