Heat Sink Compounds

Heat Sink Compounds and Thermally Conductive Grease PolySi® G-MAN® Lubricants

PST-540 Heat Sink Compound

PolySi® G-MAN® Heat Sink Compounds, also known as Thermally Conductive Grease Compounds, are used to transfer heat away from electrical or electronic components or to heat other measuring devices. PST-540 Heat Sink Compound works by conducting heat away from the source and sending it to a well-ventilated area, or radiating it into the air. The heat sink grease fills voids or gaps between conducting surfaces. The better the transfer of heat between the two surfaces, the better the cooling.

Selecting a Heat Sink Compound or Thermally Conductive Grease

PolySi® G-MAN® Lubricants has silicone and non-silicone heat sink (thermal) grease options. The temperature range, viscosity, and cure rate will help determine the right heat sink compound.

Typical applications:

Electronics, computer equipment, ignition modules, power supplies, audio amplifiers, rectifiers, power resistors, transistor diodes, semi-conductor mounting devices, thermal joints, and ballast heat transfer mediums. For more information on applications, please see Industries and Applications.


PST heat sinks can be packaged in a manner that meets the needs of your application. Packaging options include drums, pails, gallons, cans, bottles, tubes, unit dose, grease packets, grease cartridges, syringes, and custom design options. Call today to discuss your specific application.