Thermal paste Polartherm X-8 40 g — high-performance thermal compound for CPUs, GPUs and heatsinks

Polartherm X-8 40 g is a high-performance thermal paste formulated to improve heat transfer between CPUs, GPUs and heatsinks. Packaged in a 40 g tube, the compound is intended for desktop processors, laptop chips, graphics cards and custom cooling assemblies where effective thermal conductivity is required to lower junction temperatures and maintain stable operation under load.

Advantages

Polartherm X-8 offers a balanced viscosity that facilitates easy application and good surface contact without excessive running. The compound is engineered for stable thermal performance, helping to reduce operating temperatures when replacing aged or degraded thermal interface materials. With a non-curing formulation, it maintains consistent thermal conductivity over extended use and is compatible with typical metal heatsink bases and integrated cooler surfaces.

Suitable for

• Desktop CPU installation and reapplication
• Laptop CPU and GPU maintenance and repair
• Graphics card GPU thermal interface replacement
• Custom cooling loops and heatsink assembly
• Overclocking setups that require improved heat transfer

Key specifications

• Net weight: 40 g tube for multiple applications
• Form: paste/thermal compound
• Thermal performance: high-conductivity formulation suitable for CPU/GPU heat dissipation
• Viscosity: medium to high viscosity for controlled spread and reduced run-off
• Compatibility: suitable for metal and most heatsink contact surfaces
• Stability: non-curing composition designed for long-term thermal consistency

How to use

Clean both surfaces thoroughly before application: remove old thermal paste with isopropyl alcohol and a lint-free cloth, then allow surfaces to dry. Apply a small, pea-sized or line amount of Polartherm X-8 to the center of the processor or chip, depending on the heatspreader size. Mount the heatsink or cooler evenly and secure according to the manufacturer’s instructions to spread the paste into a thin, continuous layer. For GPUs and unusual surfaces, adjust the paste quantity to ensure full coverage without overflow.

Usage recommendations

Use Polartherm X-8 in well-ventilated areas and avoid contact with electrical contacts or exposed circuitry. When replacing thermal paste, check mounting pressure and re-torque fasteners after a short run-in period. Store the tube capped at room temperature away from direct sunlight to maintain consistency.