Heat Sink Compound - Silicone

Thermal paste for electrical applications

Part # Name Size Units
Per Case
1977-DP Silicone Heat Sink Compound 4 oz 24
Packaging Order minimum case quantity only. Extra shipping fees may apply.
Order from an authorized distributor
Silicone Heat Sink Compound sink draws heat away when applied to a component. Heatsink compound is also called thermal grease, thermal paste thermal compound, CPU grease, heat paste, heat sink paste, and thermal interface material.

Used with thermocouple wells, thermistors, and calrods, or wherever efficient cooling is required.  Ideal for electrical applications

Features & Benefits

  • Thermal conductivity – 0.70 W/m-K
  • Functional temperature Range - 67°F to 401°F (-55°C to 205°C)
  • Easy application
  • Will not harden and crack
  • Non-ozone depleting


How do I figure out the shelf life of heat sink compound?
On the tubes, a little lot # is stamped into the seal on the end. For a jar it is printed on the label. That is the date of manufacture.

Instructions on insterpreting the lot #:
  • First 2 digits are the month (1=January - 12=December)
  • Third digit represents the year (1=2021, 2=2022, etc.)
The expiration date is 5 years after the DOM.
My thermal paste seems like it's getting dried out. Can I re-solvate it?

Try adding VMP naphtha (a common paint thinner) to the compound at approximately 1 part VMP to 100 parts compound. Mix thoroughly to get it back to the consistency required. This is mostly by “eyeball” so you may need a little less or a little more, depending on how dry the material is.

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