StarTech.com
StarTech 20g Tube CPU Thermal Paste Grease Compound (HEATGREASE20) | Heatsinks
Bottom line: The StarTech.com StarTech 20g Tube CPU Thermal Paste Grease Compound ($8.99 on Amazon as of 2026-10-06): 20g tube covers dozens of CPU reseats, not the single use a bundled syringe allows; main trade-off: 1.066 W/m-K trails high-end pastes aimed at overclocking and delidded chips.
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*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.
Pros & Cons
Pros
- ✓ 20g tube covers dozens of CPU reseats, not the single use a bundled syringe allows
- ✓ Ceramic-based formula is electrically non-conductive, safe near pins and exposed traces
- ✓ Rated above 1.066 W/m-K thermal conductivity for standard desktop cooling loads
- ✓ Manufacturer publishes an MSDS in StarTech.com's support section for the compound
Cons
- ✗ 1.066 W/m-K trails high-end pastes aimed at overclocking and delidded chips
- ✗ Ceramic-silicone paste is thicker than liquid metal, needing firmer spread pressure
- ✗ Tube format lacks the applicator spatula many competing kits bundle in
- ✗ 20g is overkill and may dry out before use for a single one-off build
Manufacturer description
The StarTech.com HEATGREASE20 is a 20g tube of ceramic-based thermal compound built for anyone who reseats coolers often enough that a 1g syringe feels like a joke. It bonds the CPU die or heat spreader to the heatsink base, filling the microscopic surface imperfections that otherwise trap insulating air pockets between the two metal faces. Rated at more than 1.066 W/m-K thermal conductivity, it targets everyday desktop, workstation, and retro-build duty rather than extreme overclocking. The ceramic-and-silicone formula is electrically non-conductive, which matters when you are working…
SpecPicks Verdict
SpecPicks scored StarTech.com StarTech 20g Tube CPU Thermal Paste Grease Compound using a rating × review-volume × price-fit model applied to published specs and reviews across the retro cpu coolers & fans category. StarTech.com's retro cpu coolers & fans lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for retro cpu coolers & fans of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Frequently Asked Questions
How many CPUs can a 20g tube of HEATGREASE20 cover?
StarTech.com rates the 20g tube for a large number of CPU installations across typical home or business computers. Exact count depends on your die size and application method, but it is sized for repeat fleet or workshop use rather than one build.
Is this thermal paste electrically conductive?
No. HEATGREASE20 is a ceramic-based compound containing silicone and is electrically non-conductive, so it is safe to use around electronics, socket pins, and surrounding motherboard components.
What is the thermal conductivity of StarTech HEATGREASE20?
More than 1.066 W/m-K per StarTech.com's specification. That suits stock and mild-overclock desktop cooling; competitive-overclocking builds typically reach for a higher-conductivity compound.
Can I use this on GPUs, chipsets, or retro hardware instead of a CPU?
Yes. StarTech.com describes it as suitable for any light application requiring a good thermal bond between two surfaces, which covers older CPUs, chipsets, and heatsink reseats on vintage systems.
Where can I find safety data for this compound?
StarTech.com publishes the Material Safety Data Sheet for HEATGREASE20 in its support section. Check the manufacturer listing for current documentation, packaging details, and any warranty terms.
Key Features
- Improves the heat transfer between a CPU and heatsink to keep the CPU running cooler
- Effectively fills surface imperfections on CPU to prevent air pockets and help heat transfer
- Ceramic-based compound that is electrically non-conductive, for safe use around electronics
- Ceramic-based compound containing silicone
- Thermal conductivity of more than 1.066 W/m-K
- Item Package Dimension: 5.74L x 3.22W x 0.98H inches
Full Specifications
| Brand | StarTech.com |
|---|---|
| Model | HEATGREASE20 |
| Weight | 20g |
| Wattage | 1.07 watts |
| Material | Silicone |
| Part Number | HEATGREASE20 |
| Material Type | Silicone |
| Cooling Method | Water |
| Item Type Name | HEATGREASE20 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Compatible Devices | Desktop |
| Included Components | 1 - Tube of Silicone Heat Grease Compound |
| Power Connector Type | 4-Pin |
| Warranty Description | 2 year warranty |
| Item Package Dimension | 5.74L x 3.22W x 0.98H inches |
| Item Dimensions L x W x H | 0.7"L x 2.8"W x 0.7"H |
| Global Trade Identification Number | 00065030844826 |
Ready to buy?
StarTech 20g Tube CPU Thermal Paste Grease Compound (HEATGREASE20) | Heatsinks is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.
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