Electrically conductive dynamic sealing element, its manufacturing method and sealing system

A dynamic sealing element configured to establish a mobile and electrically conductive contact between a first member and a second member, at least one of which is a mobile member movable in a linear, oscillating and/or rotary motion, the dynamic sealing element comprising:

• a sealing body comprising an electrically conductive polymer composite, at least on an outer surface of the sealing body intended to face the at least one mobile member;
• an interlayer comprising a first sublayer of titanium directly contacting said outer surface, and a second sublayer directly contacting the first sublayer;
• and
• a coating layer-directly contacting the second sublayer,
• wherein the coating layer is made of a coating composition which is based on a titanium-doped diamond-like carbon, and which has a fixed concentration of titanium atoms of between 5% and 50%, inclusively, and
• wherein the second sublayer is a gradient layer of titanium-doped diamond-like carbon having a varying concentration of titanium atoms decreasing across a thickness of the second sublayer, which concentration varies from 100% at a first interface with the first sublayer to said fixed concentration at a second interface with the coating layer.