TG-106HV is a silicone base opaque grey heat sink grease compound, which is applied to the base and mounting studs of transistor and diodes to provide a positive heat sink seal. This facilitates heat transfer away from electrical/electronic components and into heat sinks, thereby increasing the overall efficiency and performance of the device. 

TG-106HV is grease like silicone material, heavily filled with efficient heat conductive aluminum oxide and a binding agent, this combination promotes high thermal conductivity, high temperature stability, and the lowest amount of bleed and evaporation.