Polartherm X10 Thermal Paste (40g)

Keep your high-performance system cool and stable with Polartherm X10 40g thermal paste. This large 40g package offers excellent value and is designed for experienced mainstream PC users, system integrators, and frequent builders. Born from German innovation, X10 features an improved high-viscosity formula for excellent thermal conductivity and outstanding long-term durability, resisting the pump-out effect common with high-heat components. Furthermore, application is made easy with the included tools.
Discover Polartherm X10 40g
Experience the next level of cooling with the X10 thermal compound. Its advanced silicone-based formula contains a higher concentration of aluminum and zinc oxide powder compared to the X-8, resulting in very high thermal conductivity suitable for processors with TDPs over 70 watts. Consequently, this makes Polartherm X10 40g ideal for demanding CPUs like Intel® Core™ i7/i9 & Core™ Ultra 7/9 series, as well as AMD Ryzen™ 7 & 9 series processors.

A significant advantage of X10 is its long-term stability due to its relatively high viscosity. This formulation minimizes the “pump-out effect,” where paste is gradually squeezed out from between the CPU/GPU heat spreader and the cooler base due to thermal cycling. This ensures consistent, reliable cooling performance over time, especially critical for high-heat components. Moreover, despite its viscosity, application is user-friendly with the included PT Spatula and Applicator, allowing for thin, even layers using various methods. Explore compatible high-performance CPU coolers here.
Optimized for diverse applications including CPUs, GPUs, notebooks, and ICs, Polartherm X10 40g excels in both air and water-cooled systems. Its non-electrically conductive nature (0 pS/m) guarantees safety during application. This generous 40g size provides exceptional value, containing enough paste for approximately 70-80 typical CPU applications, making it perfect for system builders or users maintaining multiple machines. Find other PC maintenance supplies.
Polartherm X10 (40g) Specifications
- Product Name: Polartherm X10 Thermal Paste
- Package Size: 40g
- Item Number / EAN: PT-X10-040 / 4260711990946
- Keyphrase Focus: Polartherm X10 40g
- Operating Temperature: -50°C to +150°C
- Density: 2.6 g/cm³
- Color: Grey
- Base: Silicone Based (with Aluminum & Zinc Oxide)
- Electrical Conductivity: 0 pS/m (Non-conductive)
- Viscosity: High (Value not specified)
- Thermal Conductivity: Very High (Surpasses X-8; Value W/mK not specified)
- Application Count (40g): Approx. 70-80 CPU applications
- Included Accessories: 1x PT Spatula, 1x Applicator
- Recommended For: CPUs (Intel Core i7/i9/Ultra 7/9, AMD Ryzen 7/9), GPUs, Notebooks, ICs (TDP > 70W)
Common Questions
Target Audience
Polartherm X10 40g is targeted towards experienced PC users, system integrators, IT professionals, and enthusiasts who perform frequent builds or maintenance. It’s ideal for those working with high-performance, high-TDP processors (like Core i7/i9/Ultra, Ryzen 7/9) and graphics cards, demanding reliable, long-lasting thermal transfer and benefiting from a larger quantity of paste.
Key Reasons to Choose
Choose Polartherm X10 40g for its excellent price-performance ratio combined with high durability and suitability for demanding components. Key reasons include its high-viscosity formula that ensures long-term stability by resisting pump-out, its very high thermal conductivity (surpassing X-8), and the large 40g quantity offering great value for multiple applications. The included tools and non-conductive properties add to its ease of use and safety.
What are the Pros?
- Very High Thermal Conductivity: Excellent heat transfer for demanding components (surpasses X-8).
- High Durability & Stability: High viscosity resists pump-out effect effectively.
- Large 40g Quantity: Excellent value, enough for 70-80 CPU applications.
- Easy Application: Includes spatula and applicator tools.
- Non-Electrically Conductive: Safe for use near sensitive components (0 pS/m).
- Great Price-Performance Ratio: High performance and quantity for the cost.
- Optimized for High-TDP CPUs/GPUs: Suitable for Intel Core i7/i9/Ultra & AMD Ryzen 7/9 series.
What are the Cons?
- Specific Performance Metrics Missing: Exact Thermal Conductivity (W/mK) and viscosity values are not provided.
- Silicone-Based: While effective, some niche users might seek non-silicone options.
- Requires Tools for Best Application: While easy, using the tools is recommended due to higher viscosity.
Our Verdict
Overall, the Polartherm X10 40g thermal paste is an outstanding choice for experienced builders and professionals needing a reliable, high-performance thermal compound in a larger quantity. Its formulation delivers excellent thermal transfer suitable for high-TDP processors and GPUs, while its high viscosity ensures impressive long-term stability against the pump-out effect. The generous 40g size provides exceptional value for multiple builds or frequent maintenance. Therefore, if you need a dependable, safe, and cost-effective thermal paste for demanding applications, the Polartherm X10 40g is highly recommended.


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