Thermal paste Polartherm X-8 10 g — high thermal conductivity, low viscosity

Polartherm X-8 10 g thermal paste is formulated for efficient heat transfer between electronic components and heatsinks. With high thermal conductivity and low viscosity, this compound promotes thin, even wetting of contact surfaces to reduce thermal resistance and improve cooling performance for CPUs, GPUs and power modules. The 10 g syringe provides enough paste for multiple assemblies, upgrades or repairs and is suitable for both system builders and technicians working on cooling maintenance.

Advantages

Polartherm X-8 combines high thermal conductivity with a low-viscosity formulation to enable easy, precise application and consistent thermal contact. The low-viscosity texture helps create a thin, uniform layer that fills microscopic surface imperfections without requiring excessive pressure. The paste is non-curing and remains stable over time, allowing for rework and component replacement without hardening or significant drying.

Suitable for

• CPU and GPU cooling in desktop computers and workstations
• Thermal interface between power modules, MOSFETs and heatsinks
• Custom builds, upgrades and system repairs
• Electronics maintenance where improved heat dissipation is required

Key specifications

• Net weight: 10 g syringe
• Thermal conductivity: high (performance-oriented compound)
• Viscosity: low — easy spreading and thin layer formation
• State: paste, non-curing compound
• Compatibility: metal and ceramic heatsinks, soldered and socketed components
• Operating temperature range: suitable for typical electronic cooling environments

How to use

Clean both mating surfaces with isopropyl alcohol and a lint-free cloth to remove old paste, dust and oils. Apply a small, pea-sized amount of Polartherm X-8 to the center of the component heat spreader or chip. Mount the heatsink and apply even pressure to spread the paste into a thin layer; avoid excessive movement that could create air pockets. After installation, verify seating and thermal interface by monitoring temperatures under load and adjust if necessary.

Usage recommendations

For best results, use a minimal amount and let the low-viscosity paste form a uniform contact layer. Reapply whenever you remove the heatsink or when thermal performance degrades. Store the syringe in a cool, dry place and keep the cap closed to prevent contamination.