Heat Conducting Paste is used in temperature measuring instruments which are mounted on a thermowell, a protective metal enclosure (See Article on Thermowells). The heat conducting paste ensures good heat conducting between the thermowell and the sensor. This is important as poor conducting can result in inaccurate readings.
The heat conducting pastes are designed to withstand very high temperatures without solidifying. The pastes can bond with metal, ceramics, glass and a range of other materials. These pastes also possess excellent electrical insulation properties.