Electrically dissipative coating

By friction and separation of two touching materials (triboelectric charging) or by the influence of an electric field on a body (influence) electrostatic charges can arise. If these charges are not discharged in a controlled manner, interference with electronic devices and display errors with measuring devices can occur. In order to avoid this scenario, Rhenotherm has developed an electrically dissipative coating.

According to EN 13463-1, it can be assumed that electrostatic charging is avoided if the surface resistance is <= 10 9 ohms.

The coating Rhenolub MK I RB 30 HD is a electrically dissipative coating which has a resistance value of 10³ Ohm  up to 10² Ohm can achieve.

By friction and separation of two touching materials (triboelectric charging) or by the influence of an electric field on a body (influence) electrostatic charges can arise.

Due to this property, there is a risk of electrostatic charging. If such charged materials discharge by sparking, they can explode explosive atmospheres, as z. B. solvents / air mixtures, dust / air mixtures, explode.

In such applications, the uncoated elastomers can not be used. To be able to use the advantages of the elastomers for these areas as well, Rhenotherm has one electrically dissipative coating 

As a result, their conductivity is significantly increased or their electrical resistance is significantly reduced. By this measure, the electrical volume resistance of z. B. NBR can be reduced from 10 11 ohms to <10 2 ohms. The elastomers become electrically conductive. If they are grounded, electrostatic charging can be reliably prevented. In addition to reducing the volume resistance, the use of another special additive makes it possible to verify the homogeneity of the coating using UV light.