The thermally and electrically conductive pastes are formulated with a high percentage of conductive powder of various nature, conveyed in synthetic oils / silicone. A fundamental characteristic of these pastes is the low volatility and high thermal stability at high temperatures, typical in these applications. Another important property is the high spreadability that allows effective coverage of the coupled surfaces with consequent reduction of the thermal resistance or electric. In most cases, these pastes are used in static applications but are available special conductive greases, usable in dynamic applications such as ball bearings subject to stray currents.