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ARCTIC MX-4 (4g) Carbon-Based Thermal Compound, Non-Electricity Conductive, Non-Capacitive

  • Non-conductive
  • Non-capacitive
  • Carbon microparticles-based
  • Does not degrade like metal or silicon compounds
  • 4g syringe
This product qualifies for the Iron Egg guarantee. We'll match any qualifying competitor's price.
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The ARCTIC MX-4 is a new thermal compound that guarantees exceptional heat dissipation from components and maintains the needed stability to push your computer system to its maximum. The ARCTIC MX-4 continues to be overclocker’s ultimate choice when choosing thermal compound.

  • newegg Exceptional Performance The ARCTIC MX-4 is composed of carbon micro-particles that lead to an extremely high thermal conductivity. It guarantees quick and efficient dissipation of heat from the CPU or GPU.
  • newegg Safe and Easy Application The ARCTIC MX-4 is a metal-free and non-electrically conductive compound that eliminates the risks of short circuit and provides protection to your computer. Also the application is very easy as the consistency is just ideal for application on chips.
  • newegg Great Value With its competitive pricing, the ARCTIC MX-4 is the perfect performance thermal compound on the market.

Learn more about the ARCTIC COOLING AC-MX4


Arctic Cooling MX-4


Thermal Conductivity (W/mk): 8.5

Viscosity (poise): 870

Density (g/cm3): 2.5

Net Weight: 4g

The ARCTIC MX-4 is a premium-grade thermal paste with exceptional performance and ease of application. It is an electrically non-conductive paste that is applied between CPU/GPU and designated coolers to transfer the dissipated heat from the components to the heat sink. Since the ARCTIC MX-4 is a metal-free compound, it eliminates the risks of causing short circuit and in turn adding more protection to your computer.

The new formula in the ARCTIC MX-4 features optimal thermal conductivity and low thermal resistance. These characteristics effectively dissipate the emitted heat from the core components.

The consistency of the ARCTIC MX-4 is designed for simple application. Its texture is just thin enough to spread onto components using fingers without creating much mess.


Non-Capacitive, Non-Electricity-Conductive, Carbon-Micro particle Based Thermal Compound

Non-Curing, Non-Corrosive, Non-Bleeding, Excellent for CPU/GPU/Electronics/Lighting Cooling

Low Thermal Resistance/High Thermal Conductivity Dissipating Heat Efficiently

Will Not Short/Damage Delicate Circuitry Like Silver/Metallic-Based Compound

High Viscosity, Easy-Application Syringe, Superb Durability - 4g Syringe Retail Package

Manufacturer Warranty

6 years limited
6 years limited

Quick Info


  • Limited Warranty period (parts): 6 years
  • Limited Warranty period (labor): 6 years

Customer Reviews of the ARCTIC COOLING AC-MX4

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  • Anonymous
  • 3/30/2015 7:39:46 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsMX-4 Carbon-based thermal compound

Pros: This was my first time (gasp) trying this product, and it didn't disappoint me. I've tried just about everything except peanut butter (no, some silly sots have really tried it), and I always stick to Arctic compounds, though I didn't intend it as a pun. I used a bit less than a full, round pea-sized dot in the middle of our new FX-8350; using more is simply wasteful and this goop is too expensive to waste any of it. Within an hour the temps settled down and the chip ran evenly, nice and cool (though to be fair, it also helps to have an H100i cooling block running on the chip). Seriously, this surpassed the older paste I've used for so long, AS-5. After I removed the water pump/cooler, I was pleasantly surprised that the carbon-based MX-4 didn't run, but spread out more evenly than AS-5 did. It's a bit thicker, but for me it's easier to apply.

Cons: If carbon-based life-forms are so intelligent, then why isn't MX-4 less expensive so that we users don't complain about the cost so much? Arctic can pay their own bills, rent, etc...after all, it does keep those expensive chips from frying, and isn't that worth what this is, and does for us?

Other Thoughts: When this is reduced or includes free shipping, just order it, don't worry about it, don't hesitate just get some; your processor will thank you. (unfortunately, I'm not a paid spokesman for Arctic...

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  • Jason H.
  • 3/27/2015 9:06:01 AM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsWorks as intended

Pros: - Easy to apply and clean off if needed.
- Non-conductive!
- Perfect viscosity to evenly spread of rice-drop for even application.

Cons: None

Other Thoughts: Dropped my temps nice and low using a water-cooling block.

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  • Ricardo B.
  • 3/21/2015 11:07:36 PM
  • Tech Level: Somewhat High
  • Ownership: less than 1 day
  • Verified Owner

5 out of 5 eggsGreat TIM

Pros: Used this in combination with my Cooler Master Hyper 212 Evo and I went from 40-50C idle/85-95C under load down to 25-30C idle/40-45C under load. Great product for sure!

Cons: None.

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  • Tom N.
  • 3/21/2015 9:20:40 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsGreat Thermal Compound!

Pros: This is some of the best rated compound on the market and for anyone out there planing on getting this stuff buy it quick because it sells out fast and is out for about a month. Most other sites sell the same product for about $30-$40 for the same amount of compound.

Cons: None

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  • Nash L.
  • 3/13/2015 12:50:10 AM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsGood paste

Pros: Went on smoothly with no problems and did not have any air bubbles in the stream.

Cons: None

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  • Chris M.
  • 2/27/2015 2:20:34 PM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsExcellent Paste

Pros: Excellent temperatures
No cure time
Easy application

Cons: Somewhat pricey

Other Thoughts: Great thermal paste, highly recommended for anyone who works with computers. With Corsair H100i and i5 4690K at stock clocks, idle temperatures were roughly 30C and Cinebench load temperatures were 55C.

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  • Kevin P.
  • 2/3/2015 12:25:08 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsGreat Thermal Paste

Pros: I have replaced my Arctic Silver 5 with this and I am extremely please with it. It does seem to keep my computer a bit cooler but I cannot say with certainty because i changed my heat sink as well. All I can say with certainty is that my computer is running at an idle of 27C in a room that is ~24 C (75 F)

Cons: Nothing really

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  • Anonymous
  • 2/1/2015 9:45:27 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsworks well

Pros: Works great, spreads nicely.

A tube of the this will build many systems.

Cons: none

Other Thoughts: Dropped a current machine 11 degrees after using this to replace the oem TIM.

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  • Stanley S.
  • 1/20/2015 5:20:05 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggs

Pros: the only compound i use

non capacitive or conductive

cleans up very easily

tons of applications for 4g

no curing time

Cons: none

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  • Peter P.
  • 1/15/2015 2:28:58 PM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsGreat Thermal compound.

Pros: Well I used up the entire tube without problems. Heat transfers well under load. Would definitely recommend for custom builds, or even replacing stock thermal paste on a GPU or CPU.

Cons: None

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