Conrad ctcm78 78wmk thermal silicone grease conrad 1361503 this high performance thermal compound is made from single component silicones with a balanced ratio of thermal conductivity to electrical insulation thanks to its viscosity the homogeneous and highly filled paste shows a very low tendency to flow while at the same time optimising surface contactin long term use the compound does not harden and shows no tendency to crack with only slight drying for optimum results the paste