Arctic
Arctic MX-6 Thermal Paste
Paste · 4 g
7.9
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Arctic MX-4 Thermal Paste (4 g)
A metal-free, non-conductive paste in a 4 g syringe, long sold as an affordable everyday choice.
- Paste
- 4 g
PCPR score
7.8
Good
Best price we’ve seen
$10.99Nov 9
Checked recently. Confirm at the retailer.
R1
The short version
MX-4 is Arctic's long-running metal-free thermal paste, listed here in a 4 g syringe and offered from 2 to 45 grams. Arctic says it is not electrically conductive, spreads easily and resists drying, quoting a 2.50 g/cm³ density, 31,600 poise viscosity and a -50 to 150 °C continuous range. It suits everyday CPU and GPU repastes, although Arctic's newer MX-6 sits above it and no W/mK figure is listed on the page.
Pros
- Metal-free and not electrically conductive per Arctic
- 4 g syringe covers several applications
- Sold in sizes from 2 to 45 grams
- Resealable packaging, with Arctic's authenticity check
Cons
- No W/mK figure listed on the product page
- Arctic's newer MX-6 is positioned above it
- No independent temperature test was read in this pass
Best for
- Everyday CPU and GPU repastes
- First-time builders who want a forgiving paste
J3
Full specifications
Core
- Type
- Paste
- Quantity
- 4 g
Features
- Electrically conductive
- No
Compatibility notes
- Metal-free and not electrically conductive per Arctic, so it avoids the short-circuit risk of liquid metal.
- Arctic quotes a continuous use range of -50 to 150 degrees Celsius.
P1
Where to buy
Official store
Seen Nov 9, 2026
$10.99
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- See it at Micro Center
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AV1
Video reviews
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R9
Common questions
Is MX-4 electrically conductive?
No. Arctic says MX-4 is metal-free and not electrically conductive, so it avoids the short-circuit risk of liquid metal.
How does MX-4 relate to Arctic's MX-6?
MX-4 is the older formula that Arctic still sells, while MX-6 is the newer paste positioned above it in the range.
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