Construction Masonry MaterialsCoating additives
Most paints, pastes and coatings contain color pigments that turn the isolating binder property into an electroconductive one. The challenge was to develop an insulating coating with good coloristic properties, as many electronic engineering applications require this to prevent short-circuiting.
Electric current conduction only occurs if the current can flow through the complete surface or volume via interconnected conductive particles (percolation). Conductivity can be reduced if the individual particles are covered with an insulating layer (similar to the rubber cover of an electric cable). We developed an inorganic additive for converting conductive pigmented coatings into electrical insulating ones through spacer technology. Thanks to a shell of insulating nanoparticles that prevent the pigments from percolation, electrically insulating pigmented coatings can be achieved.