ARCTIC COOLING ACTCP00002B MX-4 4 g thermal paste

Premium carbon-microparticle compound

ARCTIC MX-4 is a non-conductive thermal paste formulated with carbon micro-particles for CPU, GPU and console cooling. The 4.0 g syringe provides enough material for multiple applications on desktop processors or graphics cards. Its metal-free composition eliminates the risk of electrical short circuits during installation. The compound is non-curing and non-bleeding, maintaining consistent performance over time.

8.5 W/mK conductivity with long-term stability

Thermal conductivity of 8.5 W/mK ensures efficient heat transfer from the die to the cooler base. Viscosity of 870 poise and density of 2.5 g/cm³ give the paste an ideal consistency that resists pump-out and drying. The manufacturer states the compound lasts beyond the service life of a typical gaming system without degradation. It handles sustained loads on mainstream CPUs and GPUs but is not rated for extreme sub-ambient or liquid-metal replacement scenarios.

Easy application for mainstream builds

The syringe design allows precise, controlled dispensing directly onto the heat spreader. No spreading tools or specialised skills are required, making it suitable for first-time builders. Non-capacitive and non-corrosive properties protect surrounding components if excess paste contacts the PCB. The 2019 edition packaging reduces material waste by approximately 40 % compared to previous versions. Buyers needing larger volumes for repeated servicing or industrial use should consider higher-capacity options.