Thermal Paste SilentiumPC Polartherm X-8, 10 g syringe — CPU/GPU thermal compound

SilentiumPC Polartherm X-8 is a 10 g thermal compound supplied in a syringe for precise application between processors and heatsinks. Engineered for CPU and GPU cooling, this thermal paste fills microscopic surface irregularities to improve heat transfer and contribute to lower operating temperatures. The syringe format allows controlled, repeatable dispensing for initial assembly or maintenance when replacing or upgrading cooling solutions.

Advantages

Polartherm X-8 offers consistent thermal conductivity and a non-curing formulation that maintains performance over repeated thermal cycles. The syringe delivery provides accurate dosing and neat application, reducing waste and simplifying spread on contact surfaces. The compound is electrically non-conductive, minimizing the risk when working near sensitive components, and is formulated to resist pump-out and drying under typical PC operating conditions.

Suitable for

• Applying thermal interface material between CPU and heatsink during PC builds
• Reapplying thermal paste on desktop GPUs and laptop processors during maintenance
• Upgrading aftermarket coolers where precise, even compound application is required
• General system cooling optimization and thermal repasting after prolonged use

Key specifications

• Form: viscous thermal compound supplied in a 10 g syringe
• Intended use: thermal interface for CPUs and GPUs
• Electrical properties: non-conductive composition
• Behaviour: non-curing formulation designed to resist drying and pump-out
• Application temperature range: suitable for typical PC operating temperatures

How to use

Clean both surfaces (processor heat spreader and cooler base) with isopropyl alcohol and a lint-free cloth to remove old compound and contaminants. Apply a small, controlled amount of Polartherm X-8 from the syringe to the center of the processor or use a thin line/dot method appropriate for your CPU/GPU layout. Mount the heatsink or cooler evenly and apply steady pressure to spread the compound; avoid repeatedly removing and reseating the cooler once assembled. If more coverage is needed, remove the cooler, clean surfaces, and reapply a conservative amount.

Usage recommendations

Store the syringe capped in a cool, dry place to preserve consistency. For best thermal results, allow the system to complete several thermal cycles after installation and monitor temperatures. Reapply when changing coolers, after several years of use, or if thermal performance degrades.