Co-extruded elastomer profiles consist of a conductive elastomer and a non-conductive elastomer. Both materials are extruded at the same time. In addition to having a high level of EMIAptitude d'un appareil ou d'un système électrique ou électronique, à fonctionner dans son environnement de façon satisfaisante, sans produire lui-même des perturbations électromagnétiques gênantes pour tout ce qui se trouve dans cet environnement et ne pas être non plus perturbé par les autres équipements électrique ou électronique qui l’entourent. More protection, they also offer a high level of protection against environmental influences. These co-extruded gaskets offer the advantage of being able to save a large part of the conductive particles. Only a small part of the profile is electrically conductive. This product variant represents a very economical alternative to the previously seen conductive particle-loaded silicone gaskets. Large profiles are the big winners of this new technology. The loaded silicone partially covers the joint section, which allows for a very flexible gasket. The addition of conductive loads usually always leads to an increase in hardness and a decrease in tensile strength. We thus obtain bi-material gasket with a more interesting mechanical behavior than pure loaded silicone (better flexibility and therefore better level of IP sealing).