Alphacool Announces Apex 17 W/mk Thermal Grease

Alphacool Featured

Recently Alphacool announced its Apex thermal grease with a rated thermal conductivity of 17 W/mk. This is considerably higher than the average, and anything rated above 8.5 W/mk is generally considered high performance. Alphacool accomplishes this by utilizing “nano-particles” with lower thermal impedance. The Apex Thermal Grease will be available at Alphacool’s website for $15.62 and come in a four-gram syringe. Below is Alphacool’s press release, along with additional specifications.

Alphacool Apex 17 W/mk Thermal Grease

Alphacool introduces the new Apex thermal paste. With a thermal conductivity of 17 W/mk, it enters the circle of the most powerful thermal pastes on the market.

Alphacool Apex
Alphacool Apex

The main objective during development was, of course, to increase the thermal conductivity. However, points such as viscosity and durability should not be ignored. Alphacool was able to optimize the viscosity so that the Apex thermal paste is particularly suitable for high contact pressures and is still easy to process. The main ingredient of Apex Thermal Grease is a nano-powder with a very low thermal impedance. This makes it possible for electronic components to be cooled efficiently, thus extending their durability and improving their reliability.

The thermal paste is delivered in a 4g applicator with a screwable cap. The supplied amount is sufficient for several applications and can be stored in the applicator to protect it from drying out. The Apex 17 W/mk Thermal Grease will be available in the Alphacool online store (item number 1022240) from 06/16/2022.

Technical data
Thermal conductivity17 W/mk
Volatilization Rate (24H@200°C)%<0.5
Density (g/cc)3.5 (Test method ASTM D792)
Viscosity (mPa.s)35~220*103 (Test method ASTM D2196)
Continuous Using Temperature (°C)-40°C to 120°C
Thermal Impedance (°C in 2/W)0.10 +/- 0.1 (Test method ASTM D5470)
Max. working pressure (psi)40

-John Nester (Blaylock)

About John Nester 399 Articles
John started writing and reviewing PC components for in 2015, but his passion for PCs dates all the way back to the early 1980s. His first personal computer was a Commodore 64 with a cassette drive. As a dedicated member of the news team, he focuses his articles on new product releases and software updates. He reviews a wide variety of PC components including chassis, storage drives, keyboards, and more. John works in technology as a C.A.D. designer for a major automotive manufacturer. His other passions in life include motorcycles, hunting, guns, and football.

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Avatar of Evilsizer

Senior Forum Spammer

19,671 messages 238 likes

A bit behind but these "nano particles" what type are they? is it graphite nano-particles, i could see that helping increase the W/mk.

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Avatar of Blaylock

"That Backfired" Senior Member

8,043 messages 952 likes

I don't think they ever announced what the particle is made of. Graphite is a good of a guess as any.

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Avatar of Evilsizer

Senior Forum Spammer

19,671 messages 238 likes

Benching Team Leader

13,427 messages 2,575 likes

This press release says more about the product than the product pages on the official website ;) ... they have it in their store if anyone wishes to order/test

I haven't seen any significant difference between ~8W/mK and anything 11-14W/mK, so I'm not sure if it's even worth the order (1-2°C or something near, when results were about 90°C average). Liquid metal wasn't so much better to be worth all the problems with cleaning and possible reactions with various surfaces.
As long as it's interesting product then I simply don't expect it will magically reduce CPU/GPU temps. I bet that other brands will follow soon. Eventually it will replace worse solutions.

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