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White syringe with grey cap labelled ARCTIC MX-4 45g thermal paste

ARCTIC COOLING

ARCTIC COOLING MX-4 ACTCP00024A thermal paste 45g 8.5 W/mK

SKU CH-HJ0N-8H9EE MPN ACTCP00024A

Carbon-based thermal paste with 8.5 W/mK conductivity in a 45 g syringe for CPU and GPU heat transfer

  • Volume / Net Weight45g
  • Thermal Conductivity8.5 W/mK
  • SpecificationsThermal Conductivity: 8.5 W/(mK) Viscosity: 870 poise Densit
  • FeaturesAMAZON #1 BESTSELLER: The MX-4 convinces everyone with its u

Weight 45 g

Struck-through versions exist but are not stocked here.

  • High thermal conductivity of 8.5 W/mK for efficient heat transfer
  • Carbon micro-particle composition fills microscopic gaps on CPU and GPU surfaces
  • Easy application consistency suits beginners and experienced builders alike
  • 45 g syringe with resealable cap allows multiple uses over time
  • Electrically non-conductive formula eliminates risk of short circuits

ARCTIC MX-4 45g Carbon Thermal Paste

The ARCTIC MX-4 is a carbon-based thermal compound designed to fill microscopic gaps between a processor and heatsink. With a thermal conductivity of 8.5 W/mK, it transfers heat efficiently for CPUs and GPUs in desktops, laptops and game consoles. The 45g syringe includes a resealable cap for multiple applications over time.

Upgrade from basic silicone or stock paste

Builders replacing generic silicone grease or dried-out factory compound will see lower temperatures under load. The carbon micro-particle formula eliminates the curing time required by some metal-based pastes. The jump is worth it when thermal limits throttle performance or when fan noise becomes excessive during sustained workloads.

Simple syringe application for beginners

The 870 poise viscosity allows smooth spreading without running, making it easy to apply a pea-sized dot or thin line. Common mistakes include using too much paste, which can spill onto the socket, or leaving air pockets by lifting the cooler after seating. The resealable cap prevents the compound from drying out between uses.

Highlights

  • High thermal conductivity of 8.5 W/mK for efficient heat transfer
  • Carbon micro-particle composition fills microscopic gaps on CPU and GPU surfaces
  • Easy application consistency suits beginners and experienced builders alike
  • 45 g syringe with resealable cap allows multiple uses over time
  • Electrically non-conductive formula eliminates risk of short circuits

Specifications

BrandARCTIC COOLING
SeriesMX-4
ModelACTCP00024A
Volume / Net Weight45g
Thermal Conductivity8.5 W/mK
SpecificationsThermal Conductivity: 8.5 W/(mK)
Viscosity: 870 poise
Density: 2.50 g/cm³
Volume Resistivity: 3.8 x 1013 O-cm
FeaturesAMAZON #1 BESTSELLER: The MX-4 convinces everyone with its usual quality and performance, that have always distinguished it
EXCELLENT PERFORMANCE: Composed of carbon micro-particles which lead to an extremely high thermal conductivity. It guarantees that heat generated from the CPU or GPU is dissipated efficiently
HIGH PERFORMANCE: With excellent temperature reduction performance, the MX-4 is ideal for CPU and GPU cooling, and other applications between power semiconductor components and heatsinks
SAFE APPLICATION: The MX-4 is metal-free and non-electrical conductive which eliminates
Shipping weight1.36 kg
Package size198 × 38 × 25 mm

Other versions of this model

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Questions about this item

What size syringe and weight does the 45g MX-4 paste come in?

The product is supplied as a 45 gram syringe with a resealable cap for storage between uses.

How do I apply the carbon-based MX-4 paste without trapping air bubbles?

Dispense a small amount onto the centre of the CPU heatspreader, then mount the cooler straight down; the 870 poise viscosity spreads evenly under pressure without manual spreading.

How often should the MX-4 thermal compound be replaced on a CPU or GPU?

The carbon micro-particle formula is non-drying and rated for at least eight years, so replacement is only needed if the cooler is removed or temperatures rise unexpectedly.

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