The thermal conductivity coefficient of 5.0W/m.k thermal conductive mud has good heat transfer and high insulation properties. It also has the advantages of high temperature non oil separation, non drying, non solidification, non melting, odorless and non-toxic, non corrosive material, high and low temperature resistance, water resistance, ozone resistance, weather aging resistance, good thixotropy, moderate viscosity, easy use, and simple coating or sealing process