How to Make Homemade Thermal Grease

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Thermal grease is a compound that computer technicians use to help keep a computer processing unit cool. Air pockets form beneath heatsinks and video cards when they are installed in a processor; thermal grease fills the air pockets and increases thermal conductivity. Arctic Silver, Cool Laboratory and Shin-Etsu produce commercial thermal grease products, but you can make your own grease if you do not have a commercial product on hand. You should replace homemade thermal grease as soon as possible because the ingredients will break down and lessen its effectiveness.

Things You'll Need

  • No-grit toothpaste
  • Petroleum jelly
  • Bowl
  • Toothpick or spoon
  • Syringe
  • 5 grams diamond powder
  • 4 grams silicon grease
  • Zip-lock plastic bag
  • Dust mask

Toothpaste Thermal Grease

  • Put toothpaste and petroleum jelly in a small bowl. Use a ratio of 75 percent toothpaste to 25 percent petroleum jelly. Use no-grit toothpaste because grit will interfere with heat transfer.

  • Mix the toothpaste and petroleum jelly with a toothpick. If you are making a large amount of grease, mix the ingredients with a spoon.

  • Fill a syringe with the mixture for ease of application.

Diamond Powder Thermal Grease

  • Put on a dust mask. Diamond dust is extremely dangerous if you inhale it, so always where breathing protection when working with it.

  • Put the diamond dust and silicone grease in a plastic bag. Close the bag tightly.

  • Mix the ingredients thoroughly by mashing on the bag with your fingers. Mix the compound until it is gooey, almost runny, but still holds its shape.

  • Put the compound in a syringe for application and storage.

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References

  • Photo Credit HOT Technology and Food image by Christopher Meder from Fotolia.com
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