Effective Thermal Coupler Grease, Thermally Conductive, For Power Transistors, Diodes, Semiconductors, Thermal Joints & Coupler Grease 04, 1.5 Grams Brand: Atom Adhesives Type: Adhesives Color/Finish: White Application: Effective thermal coupler for any heat sink device, CPU to heat sink. / Automotive temperature-sensing devices / Temperature sensors / Applied to the base and mounting studs of transistor, diodes and silicone controlled rectifiers / Power transistors / Diodes, semiconductors / Thermal Joints / For any device where efficient cooling is required.