Thermal paste ARCTIC MX-4 (8 g) Edition 2019

The ARCTIC MX-4 (8 g) Edition 2019 is a high-performance thermal paste designed to improve heat transfer between a CPU or GPU and its heatsink. With a thermal conductivity of 8.5 W/m·K and a density of 2.5 g/cm³, this blue-and-white compound provides reliable, long-lasting thermal management for desktop and laptop cooling solutions. The product comes in an 8 g recyclable packaging bag introduced to reduce the environmental impact of packaging materials.

Advantages

MX-4 uses carbon micro-particles to achieve high thermal conductivity while avoiding metallic components, so it is electrically non-conductive and safe to apply near pins and contacts. The compound has an easy, spreadable consistency for straightforward application, and it maintains performance over time — ARCTIC specifies a service life of up to 8 years once applied. The updated recyclable packaging reduces packaging material CO2 footprint by approximately 40%.

Suitable for

• CPU and GPU cooling in desktop PCs
• System builders and PC enthusiasts, including overclocking setups
• Maintenance or re-application when replacing or reseating coolers

Key specifications

• Thermal conductivity: 8.5 W/m·K
• Weight: 8 g (0.008 kg)
• Density: 2.5 g/cm³
• Colour: Blue, White
• Manufacturer part number (MPN): ACTCP00008B
• EAN: 4895213701662
• Made in: Hong Kong

How to use

Clean both the CPU/GPU surface and the heatsink mating surface thoroughly to remove old thermal paste, dust and oils. Apply a small, pea-sized amount of MX-4 to the center of the CPU or follow the manufacturer-recommended pattern for your cooler. Mount the heatsink and tighten mounting hardware evenly to spread the paste and avoid air gaps. For best results, power on the system and monitor temperatures to confirm proper contact and thermal transfer.

Usage recommendations

Store the thermal paste in a cool, dry place away from direct sunlight. Reapply MX-4 when removing or replacing the cooler or if thermal performance degrades; ARCTIC rates the applied compound to last up to 8 years under normal conditions. Avoid contact with electrical contacts, although the non-metallic composition reduces risk of electrical conductivity.