Designed with both performance and convenience in mind, X-8 thermal compound is the perfect choice for everyday users, gamers and DIY PC builders alike. X-8 features a silicone oil-based carrier mixed with aluminum and zinc oxide powder. Created to enhance thermal performance in CPU and GPU cooling, X-8 is ideal for use in both air and liquid cooling systems. The well-balanced formula provides very good thermal conductivity and good resistance that makes application easy, while still offering the durability needed to resist the pump-out effect.

The pump-out effect occurs when thermal paste is gradually squeezed out between the heat spreader and the CPU cooler’s base plate due to deformation from temperature changes under load. Materials like silicon and copper have different thermal expansion rates, which makes the effect more pronounced, especially with a copper cooler on a graphics chip. At lower temperatures, the pump-out effect is less severe, making X-8, with its low viscosity, ideal for CPUs with lower heat output. Signs that the thermal paste needs replacing include rising CPU temperatures and reduced clock speeds.

• Direct Application: Apply the paste directly to the CPU without a spatula or applicator. Once the cooler is mounted, the pressure will evenly distribute the paste, filling in microscopic gaps.
• Spatula Method: Use the included spatula to spread the compound across the CPU surface. The cooler will compress the paste, ensuring full coverage even in the smallest areas.
• Applicator Method: Squeeze the paste directly onto the CPU heat spreader using the provided applicator, ensuring a thin, even layer. The cooler pressure will then fill any remaining gaps.

• Packaging Sizes to Fit Any Project

  Polartherm pastes come in several capacities ranging from 2g to 40g, making it ideal for individual upgrades or system integrators. When used on an Intel Core Ultra or AMD Rzyen CPU the capacity is sufficient for the following number of applications:

  • 2g = 3-4 applications
    
  • 5g = 8-10 applications
    
  • 10g = 18-20 applications
    
  • 40g = 70-80 applications

  • Technical Specification

     

    Operating temperature:
    Density:
    Color:
    Silicone based:
    Electrically conductive:

     

    -50 to +150°C
    2.6g/cm3
    Grey
    Yes
    No