Thermal Paste CPU 1.8g
4.7Editor score
Includes application toolkit
Non-conductive safety
High durability formula
In this guide
Selecting the right thermal paste is crucial for maintaining optimal performance in your computer system. A high-quality heatsink compound ensures efficient heat transfer from the processor to the cooling solution, preventing overheating and thermal throttling during intensive tasks.
We evaluated ten leading products based on thermal conductivity, ease of application, durability, and safety features. Our analysis considers factors like electrical conductivity, longevity, and compatibility with various hardware components to provide a comprehensive comparison for builders and enthusiasts.
Each pick in this guide highlights specific strengths suited to different needs, from budget-friendly options to premium industrial-grade solutions. Please note that product availability and pricing may fluctuate over time, so always verify current details before making a final purchase decision.
Top 3 Picks for Best Heatsink Compound
ARCTIC MX-4
4.8Editor score
High thermal conductivity
Metal-free safe application
Lasts at least 8 years
Dow Corning 340
4.9Editor score
High dielectric strength
Non-flowing formula
Industrial grade reliability
Top 10 Best Heatsink Compound in 2026 Compared
The following table provides a side-by-side comparison of all ten products, highlighting their key specifications, ratings, and primary use cases to help you make an informed decision quickly.
ProductsSpecificationsEditor scorePrice
Editor's Choice
ARCTIC MX-4
Carbon microparticles
Metal-free non-conductive
Lasts 8 years
Easy to apply
4.8Editor score
Editor's Choice
Super Lube Silicone
High dielectric strength
Non-curing silicone
Resists hardening
Ideal for LEDs
4.8Editor score
Best Premium
Easycargo 200gr
1.42 W/m-k conductivity
Wide temp range
White silicone base
200 gram tube
4.8Editor score
Arctic Silver 5
99.9% pure silver
Ceramic particles
3.5g volume
Won't migrate
4.8Editor score
G107 20g Silver
3.17 W/m-k cond
Includes spatula
Non-corrosive
20 gram size
4.7Editor score
MYQ058-100g
5.8 W/m-k high
SGS certified
100 gram size
RoHS compliant
4.6Editor score
HY-510-100g
1.93 W/m-k cond
Non-conductive
Four 25g tubes
Stable performance
4.6Editor score
G104 100g
1.63 W/m-k cond
Includes spatula
Non-toxic
Xbox compatible
4.8Editor score
Dow Corning 340
210 V/mil strength
Non-flowing paste
142 gram size
Industrial grade
4.9Editor score
Thermal Paste CPU
Carbon microparticles
Includes toolkit
Non-conductive
Lasts 5 years
4.7Editor score
1. ARCTIC MX-4 – Best Overall Heatsink Compound
ARCTIC MX-4
4 gram tube size
Carbon microparticle base
8 year durability
Non-electrical conductive
ARCTIC MX-4 stands out as a top contender for general-purpose thermal paste needs with its reliable carbon microparticle formula. Rated highly by users for consistent quality and performance, it ensures efficient heat dissipation from CPU and GPU components without risk of short circuits.
Pros
- Extremely high thermal conductivity
- Safe metal-free formula
- Long lasting performance
- Easy to apply consistency
- Excellent value for money
Cons
- Small tube may not suit bulk needs
- Application tip may clog easily
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The standout quality of this compound is its durability; once applied, it can last up to eight years without needing reapplication. This makes it ideal for users who prefer a 'set it and forget it' approach to thermal management in their systems.
While the tube size is relatively small at four grams, this amount is generally sufficient for one or two standard CPU applications. The ease of application is also a significant advantage, as the paste spreads smoothly without requiring excessive pressure.
This product is recommended for builders seeking a balance of performance, safety, and longevity. If you need a reliable thermal compound that protects your hardware and maintains cooling efficiency over time, this is a strong choice.
Long-Lasting Durability
Unlike silicon compounds that dry out quickly, this paste maintains its consistency for years, reducing maintenance frequency for users.
Safe Application
The metal-free formula eliminates electrical conductivity risks, providing an added layer of protection for sensitive electronic components.
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2. Super Lube Silicone – Best for Electrical Insulation
Super Lube Silicone
3 oz volume
Silicone base formula
High dielectric strength
Non-curing formula
Super Lube Silicone Heat Sink Compound is engineered for applications where electrical insulation is paramount alongside thermal management. Its high dielectric strength makes it suitable for components where short circuits must be avoided at all costs.
Pros
- Superior electrical insulation
- Stable and flexible
- Resists hardening or drying
- Removable for disassembly
- Suitable for power diodes
Cons
- Thicker consistency may require spreading tool
- Price higher than budget options
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The compound remains flexible over time, resisting hardening or melting which is crucial for devices subject to thermal cycling. This stability ensures that the connection between heat sources and sinks remains effective throughout the component's lifespan.
While it is more expensive than typical consumer-grade pastes, the reliability and safety features justify the cost for industrial or specialized electrical applications. The ability to remove it easily also simplifies repairs or upgrades.
Users working with LEDs, power diodes, or sensitive electrical assemblies will find this product particularly beneficial. It provides a robust solution for thermal coupling where safety and stability are critical priorities.
Reliable Electrical Insulation
Features high dielectric strength to protect sensitive electronic components from potential short circuits during thermal transfer.
Stable Long-Term Performance
Non-curing silicone ensures the paste remains flexible and resists hardening or drying over extended periods of use.
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3. Easycargo 200gr – Best Value for Bulk Buyers
Easycargo 200gr
200 gram tube
White silicone carbon
1.42 W/m-k conductivity
Wide working temp
Easycargo offers a substantial 200-gram tube which makes it an excellent value for users managing multiple systems or requiring frequent reapplication. The white silicone carbon compound provides decent thermal conductivity for general cooling tasks.
Pros
- Large volume for multiple uses
- Suitable for various components
- Cost-effective per gram
- Wide temperature compatibility
- Easy application formula
Cons
- Moderate thermal conductivity value
- White color may stain dark surfaces
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This paste is versatile enough for use on CPUs, GPUs, LEDs, and various transistors, making it a universal option for many hardware interfaces. The wide operating temperature range ensures it performs reliably in both hot and cold environments.
While the thermal conductivity is lower than some premium options, the sheer volume and affordability make it a practical choice for budget-conscious buyers or less critical cooling needs. It remains a solid option for general heat dissipation tasks.
Consider this product if you need a large quantity of thermal paste without breaking the bank. It is particularly useful for workshops or users who build multiple PCs and need a reliable compound to have on hand.
Bulk Volume Value
The 200-gram size provides enough material for numerous applications, offering significant savings for frequent users.
Versatile Compatibility
Works effectively across a range of components including MOSFETs, transistors, and standard CPU interfaces.
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4. Arctic Silver 5 – Best for Enthusiasts
Arctic Silver 5
3.5 gram size
Ceramic and silver mix
Won't separate or bleed
Easy to apply
Arctic Silver 5 has long been a favorite among PC enthusiasts for its proven track record of enhancing thermal transfer. The combination of pure silver particles and ceramic particles ensures optimal physical contact between the heatsink and CPU core.
Pros
- 99.9% pure silver content
- Thermally enhanced ceramic
- Ensures best physical contact
- Stable physical properties
- Easy to remove
Cons
- Higher price point than budget
- Small size limits longevity
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The formula is designed to remain stable without separating, running, or migrating over time. This consistency is vital for maintaining performance levels without the need for frequent maintenance or reapplication intervals.
The small 3.5-gram tube is intended to last a long time due to the minimal amount required per application, yet some users may find it runs out quickly if used on multiple components. The ease of removal is also a plus for those who swap coolers often.
If you are building a high-performance system and prioritize proven thermal performance, this is a reliable choice. It balances safety with efficiency, making it a standard recommendation for serious hardware builds.
Premium Material Quality
Uses 99.9% pure micronized silver to ensure high thermal conductance and effective heat transfer.
Stable Formula
The unique particle shape and size prevent separation and migration, ensuring consistent cooling over time.
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5. G107 20g Silver – Best for General Use
G107 20g Silver
20 gram volume
Silver thermal grease
3.17 W/m-k conductivity
Includes spatula
G107 Silver Thermal Paste offers a solid performance profile with a decent thermal conductivity rating of over 3.17 W/m-k. It is designed to disperse heat effectively from CPUs and other high-performance components to their cooling sinks.
Pros
- High thermal conductivity
- Includes application tool
- Non-corrosive and safe
- Suitable for many components
- Good value for size
Cons
- Average performance compared to premium
- Packaging quality varies
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The inclusion of a thermal paste spatula in the package adds convenience for users who may not have the tools to apply the paste neatly. This small addition improves the user experience and helps ensure a clean installation.
With a 20-gram size, it offers more volume than typical standard tubes, making it suitable for users who need to service multiple devices or prefer having extra supply on hand. The non-corrosive nature ensures safety across various hardware types.
This product is a practical choice for general users who want reliable performance without needing to invest in high-end enthusiast pastes. It handles everyday thermal management tasks well and provides good value for money.
Convenient Packaging
Includes a dedicated thermal paste spatula to assist with clean and precise application on heat sinks.
Versatile Safety
Non-corrosive and non-electrical conductive properties protect sensitive components from potential damage during use.
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6. MYQ058-100g – High Thermal Conductivity Option
MYQ058-100g
100 gram size
Carbon and metal mix
5.8 W/m-k high cond
SGS certified
MYQ058-100g is formulated with high-performance graphite and metal powders to deliver a high thermal conductivity of 5.8 W/mK. This makes it a compelling option for users looking to maximize heat transfer efficiency without paying premium prices.
Pros
- High thermal conductivity rating
- Large volume for bulk use
- Certified safety standards
- Stable over time
- Wide temp compatibility
Cons
- Packaging quality inconsistent
- Less known brand name
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The large 100-gram tube ensures that you have plenty of paste for multiple builds or extensive maintenance tasks. Its SGS certification and RoHS compliance indicate that it meets specific safety and environmental standards.
While performance is strong, consistency in application can vary depending on the lot. However, the high conductivity and stable formula generally provide reliable cooling results across everyday and industrial environments.
Buyers focused on performance specifications will appreciate the high conductivity figure and large volume. It is a cost-effective way to get better thermal performance than typical silicone-based options.
Superior Conductivity
High-performance graphite and metal powders allow efficient transfer of heat away from critical CPU and GPU parts.
Certified Safety
SGS certification and RoHS compliance ensure the product meets recognized standards for safety and quality control.
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7. HY-510-100g – Best for Multi-User Kits
HY-510-100g
Four 25g tubes
Silicone grease base
1.93 W/m-k cond
Non-conductive
The HY-510 package includes four separate 25-gram tubes, making it ideal for distributing to multiple users or projects. This split packaging ensures that you can use fresh paste for each application without exposing the entire supply to air and contamination.
Pros
- Split packaging for multiple uses
- Non-conductive safety
- High durability
- Wide operating temp
- Cost-effective for bulk
Cons
- Lower conductivity than metal pastes
- Tube caps may leak if damaged
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With a thermal conductivity of 1.93 W/m-k, it provides effective heat dissipation for standard CPU and GPU cooling. The wide operating temperature range ensures it performs well in varied conditions, from cold starts to heavy load scenarios.
Users who prefer a non-conductive formula for added safety will find this product suitable for various PC components. Its mushy consistency allows for easy spreading and fills gaps between the heatsink and chip effectively.
This is a smart choice for families or small shops where multiple thermal applications are needed regularly. The separate tubes help maintain hygiene and ensure a clean application for every device.
Multi-Pack Convenience
The set of four tubes allows for organized distribution across multiple builds or users without waste.
Stable Performance
Low thermal resistance helps maintain stable cooling performance over time without compromising quality.
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8. G104 100g – Best for Xbox and Consoles
G104 100g
100 gram size
Silicone thermal grease
Includes spatula
Xbox compatible
G104 100g Heat Sink Compound is particularly noted for its compatibility with various devices including high power LEDs and gaming consoles like the Xbox. The large 100-gram tube is beneficial for those maintaining multiple units or consoles.
Pros
- Large volume for service needs
- Includes application tool
- Safe for consoles
- Non-corrosive formula
- Tasteless and non-toxic
Cons
- Lower thermal conductivity value
- May dry out if left open
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The non-corrosive and non-toxic nature of this silicone grease ensures it is safe to use around sensitive components without risk of damaging them over time. It disperses heat effectively while maintaining a stable physical state.
Included with the paste is a thermal spatula to aid in spreading, which is helpful for users performing repairs or upgrades on smaller electronics. This attention to accessory detail adds practical value to the purchase.
Ideal for hobbyists who service older hardware or gaming systems, this compound provides a reliable solution for thermal maintenance. The safety profile makes it a worry-free choice for delicate consumer electronics.
Console Safe
Specially suited for use with gaming consoles and high-power LEDs where safety and stability are essential.
Practical Kit
Comes with a thermal paste spatula to help users achieve a smooth and even application on heat sinks.
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9. Dow Corning 340 – Best Industrial Grade Compound
Dow Corning 340
142 gram volume
Non-flowing paste
210 V/mil strength
Industrial grade
Dow Corning 340 is a premium industrial-grade thermal compound designed for critical applications where electrical isolation is as important as heat transfer. With a high dielectric strength of 210 V/mil, it ensures excellent electrical insulation.
Pros
- Superior dielectric strength
- Non-flowing and non-curing
- High temperature stability
- Ideal for IGBTs
- Minimal bleed
Cons
- Higher cost than consumer pastes
- Low thermal conductivity rating
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The non-flowing formula ensures that the compound stays exactly where you apply it, preventing mess or short circuits in tight assemblies. This feature is particularly valuable in industrial equipment and high-performance compact electronics.
While its thermal conductivity rating is lower than some carbon-based pastes, its reliability and safety profile make it the preferred choice for engineers working with PCB assemblies and IGBTs. It handles high temperatures without degradation.
This product is best suited for professional or specialized use cases rather than standard PC building. If your priority is electrical safety and stability in demanding environments, this compound is unmatched.
High Dielectric Strength
Provides excellent electrical insulation to protect sensitive components from potential short circuits during operation.
Non-Flowing Formula
The paste stays where applied and does not flow, ensuring reliable coupling and preventing contamination in tight spaces.
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10. Thermal Paste CPU 1.8g – Best Budget Option
Thermal Paste CPU
Includes toolkit
1.8 gram size
Carbon microparticles
Lasts 5 years
Thermal Paste CPU offers a complete kit with application tools, making it an ideal budget choice for users who need a quick and easy solution. The carbon microparticle formula is designed to ensure high thermal conductivity for efficient heat dissipation.
Pros
- Includes cleaning tools
- Non-conductive safety
- Long lasting formula
- High conductivity claim
- Very affordable price
Cons
- Very small volume per tube
- Limited to single application
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Despite its small size, the paste is rated to last at least five years, meaning one tube can suffice for a single CPU install. The included tools help beginners apply the paste correctly without making a mess or damaging components.
The non-conductive and metal-free properties provide safety for standard PC builds. While the total volume is minimal, the ease of use and affordability make it a practical option for a single upgrade or repair.
This product is perfect for budget builds or quick maintenance tasks where cost is a primary concern. If you need a reliable paste with all necessary accessories included, this is a smart buy.
Complete Toolkit
Includes everything needed for application, ensuring a clean and professional installation without extra tools.
Longevity
Designed to last at least five years without needing reapplication, reducing maintenance requirements for users.
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Buying Guide – How to Choose the Best Heatsink Compound
Choosing the right heatsink compound depends on your specific hardware, safety requirements, and desired longevity. Understanding key factors like conductivity, electrical safety, and volume will help you select a paste that fits your needs.
Thermal Conductivity
Thermal conductivity measures how efficiently the paste transfers heat away from your processor. Higher values indicate better performance, especially for high-end CPUs and GPUs under load. Look for values above 3 W/m-K for general use and 5 W/m-K for demanding workloads.
Prioritize high conductivity when overclocking or using compact cooling systems where heat density is high.
Electrical Conductivity
Many pastes contain metallic particles that can conduct electricity if they spill onto circuitry. Non-conductive pastes are safer for beginners or complex motherboard setups. If you use a conductive paste, apply it carefully to avoid shorts.
Always choose non-conductive options for safety unless you are an experienced user managing liquid metal or silver-based compounds.
Durability and Longevity
A good thermal paste should remain effective for several years without drying out or cracking. Compounds that last eight years reduce the need for frequent maintenance. Check manufacturer claims on lifespan to ensure long-term stability.
Select pastes that promise years of performance if you plan to build systems meant to last a long time.
Volume and Packaging
Consider how much paste you need based on the number of processors or devices you plan to maintain. Small tubes suit single applications, while bulk tubes serve multiple builds. Also ensure the packaging prevents contamination and drying.
Buy larger volumes if you service many computers; buy smaller tubes for occasional use to avoid waste.
Application Consistency
The texture of the paste affects how easily it spreads across the surface of your processor. A consistent creamy texture ensures even coverage without air pockets. Thicker pastes may require more pressure to spread evenly.
Choose pastes known for smooth application to ensure optimal contact between the CPU and heatsink.
Temperature Range
Ensure the compound can handle the operating temperatures of your specific hardware. Extreme environments may require pastes with wider thermal stability. Standard pastes usually cover consumer ranges, but industrial options exist for specialized needs.
Check temperature ratings if you run your system in hot climates or under continuous heavy loads.
Cost and Value
Balance the price with the performance and volume offered. Premium pastes often cost more but provide better conductivity and longevity. Evaluate the cost per gram for better value when comparing bulk and small tubes.
Invest in higher-quality pastes for critical systems where thermal management impacts performance significantly.
Safety and Certifications
Look for products that meet safety standards such as RoHS compliance. This ensures the materials are safe and environmentally friendly. Certifications give confidence in the quality and reliability of the product you buy.
Always verify safety certifications when purchasing industrial or high-voltage rated compounds.
How to Use and Care for Your Heatsink Compound
Before applying new paste, clean the old thermal compound from the CPU and heatsink surface using isopropyl alcohol and a lint-free cloth. Ensure the surfaces are completely dry and free of debris to allow for maximum contact.
Apply a small drop of paste in the center of the CPU processor. Avoid spreading it manually unless using a tool, as the pressure from mounting the heatsink will naturally spread it. Use enough paste to cover the surface but not so much that it overflows.
Carefully mount the heatsink and secure it according to the manufacturer's instructions. This even pressure helps distribute the paste uniformly. Do not over-tighten the screws, as this can squeeze out too much paste and reduce effectiveness.
Frequently Asked Questions
How long does heatsink compound last?
Quality thermal paste can last between five to eight years before performance degrades. Some premium brands even guarantee longer lifespans. If your temperatures rise over time, it may be time to replace the compound.
Can I use thermal paste on a GPU?
Yes, many of the products listed are specifically designed for both CPU and GPU applications. Always check the product description for compatibility to ensure safe and effective thermal management for your graphics card.
Do I need a thermal paste spreader?
Not necessarily, as mounting the heatsink often spreads the paste adequately. However, a spreader can help if you are applying a very small amount or want extra uniformity. Many kits include a spatula for convenience.
Is conductive paste dangerous?
Metal-based conductive pastes can cause short circuits if they spill onto other components. They require careful application and are usually recommended for experienced users. Non-conductive options are safer for general use.
What is the best compound for beginners?
Non-conductive pastes like ARCTIC MX-4 or Super Lube are excellent for beginners due to their safety and ease of use. They reduce the risk of accidental electrical shorts during application.
Does brand matter for thermal paste?
Yes, reputable brands often provide more consistent quality and accurate performance claims. Trusted manufacturers invest in better testing and materials, ensuring you get the thermal performance advertised.
Final Thoughts on Choosing the Best Heatsink Compound
In summary, the best heatsink compound depends on your balance of safety, volume, and performance. Our top picks cover a range of needs from the reliable performance of ARCTIC MX-4 to the industrial safety of Dow Corning 340.
Prioritize non-conductive formulas if you are building new systems without extensive experience. For high-performance workloads, look for pastes with higher thermal conductivity ratings to ensure your system remains cool under pressure.
Remember that prices and availability change frequently so always verify the current pricing before purchase. Choose a product that fits your budget and technical requirements to keep your hardware running efficiently.