20 Best Non Conductive Thermal Paste [2024]

Are you looking for the best non conductive thermal paste? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling non conductive thermal paste.

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# Preview Product
1 ARCTIC MX-4 (4 g) - Premium Performance Thermal Paste for all processors (CPU, GPU - PC, PS4, XBOX),... ARCTIC MX-4 (4 g) - Premium Performance Thermal Paste for all processors (CPU, GPU - PC, PS4,...
2 ARCTIC MX-4 (incl. Spatula, 4 g) - Premium Performance Thermal Paste for all processors (CPU, GPU -... ARCTIC MX-4 (incl. Spatula, 4 g) - Premium Performance Thermal Paste for all processors (CPU, GPU...
3 Noctua NT-H1 3.5g, Pro-Grade Thermal Compound Paste (3.5g) Noctua NT-H1 3.5g, Pro-Grade Thermal Compound Paste (3.5g)
4 ARCTIC MX-4 (20 g) - Premium Performance Thermal Paste for All Processors (CPU, GPU - PC), Very high... ARCTIC MX-4 (20 g) - Premium Performance Thermal Paste for All Processors (CPU, GPU - PC), Very...
5 ARCTIC MX-4 (8 g) - Premium Performance Thermal Paste for All Processors (CPU, GPU - PC), Very high... ARCTIC MX-4 (8 g) - Premium Performance Thermal Paste for All Processors (CPU, GPU - PC), Very...
6 Thermal Grizzly Kryonaut The High Performance Thermal Paste for Cooling All Processors, Graphics... Thermal Grizzly Kryonaut The High Performance Thermal Paste for Cooling All Processors, Graphics...
7 Corsair TM30 Performance Thermal Paste | Ultra-Low Thermal Impedance CPU/GPU | 3 Grams|w/applicator Corsair TM30 Performance Thermal Paste | Ultra-Low Thermal Impedance CPU/GPU | 3 Grams|w/applicator
8 GENNEL G104 100 Grams Thermal Conductive Paste, Silicone Thermal Compound Grease, Heatsink Paste for... GENNEL G104 100 Grams Thermal Conductive Paste, Silicone Thermal Compound Grease, Heatsink Paste...
9 GENNEL 100gram Silver Silicone Thermal Conductive Compound Grease Paste For GPU CPU IC LED Ovens... GENNEL 100gram Silver Silicone Thermal Conductive Compound Grease Paste For GPU CPU IC LED Ovens...
10 ARCTIC MX-5 (2 g) - Ultimate Performance Thermal Paste for All Processors (CPU, GPU - PC, PS4,... ARCTIC MX-5 (2 g) - Ultimate Performance Thermal Paste for All Processors (CPU, GPU - PC, PS4,...
11 GENNEL G104 100Grams Tube White Thermal Grease Paste, Thermal Compound Heatsink Paste for PC CPU... GENNEL G104 100Grams Tube White Thermal Grease Paste, Thermal Compound Heatsink Paste for PC CPU...
12 Noctua NT-H2 3.5g, Pro-Grade Thermal Compound Paste incl. 3 Cleaning Wipes (3.5g) Noctua NT-H2 3.5g, Pro-Grade Thermal Compound Paste incl. 3 Cleaning Wipes (3.5g)
13 GENNEL G2 20g High Performance Thermal Paste, Heatsink Paste, Thermal Compound Grease for CPU... GENNEL G2 20g High Performance Thermal Paste, Heatsink Paste, Thermal Compound Grease for CPU...
14 Noctua NT-H1 10g, Pro-Grade Thermal Compound Paste (10g) Noctua NT-H1 10g, Pro-Grade Thermal Compound Paste (10g)
15 HY-510-25g Thermal Conductivity: 1.93W/m-k Thermal Paste, Carbon Based High Performance, Heatsink... HY-510-25g Thermal Conductivity: >1.93W/m-k Thermal Paste, Carbon Based High Performance,...
16 ARCTIC MX-2 (4 g) - Performance Thermal Paste for all processors (CPU, GPU - PC, PS4, XBOX), high... ARCTIC MX-2 (4 g) - Performance Thermal Paste for all processors (CPU, GPU - PC, PS4, XBOX), high...
17 Thermal Paste, SYY 2 Grams CPU Paste Thermal Compound Paste Heatsink for IC/Processor/CPU/All... Thermal Paste, SYY 2 Grams CPU Paste Thermal Compound Paste Heatsink for IC/Processor/CPU/All...
18 GENNEL G108 100g High Performance Thermal Paste, CPU Heatsink Paste, Thermal Compound, Carbon Based... GENNEL G108 100g High Performance Thermal Paste, CPU Heatsink Paste, Thermal Compound, Carbon...
19 GENNEL G106 100Grams Gold Thermal Paste, Heatsink Paste, Thermal Conductive Compound Grease for GPU... GENNEL G106 100Grams Gold Thermal Paste, Heatsink Paste, Thermal Conductive Compound Grease for...
20 GowizDream High Performance Thermal Paste (3g) for Cooling All Processors (CPU, GPU - PC, PS4,... GowizDream High Performance Thermal Paste (3g) for Cooling All Processors (CPU, GPU - PC, PS4,...
SaleBestseller No. 1
ARCTIC MX-4 (4 g) - Premium Performance Thermal Paste for all processors (CPU, GPU - PC, PS4, XBOX),...
  • WELL PROVEN QUALITY: The design of our thermal paste packagings has changed several times, the formula of the composition has remained unchanged, so...
  • EXCELLENT PERFORMANCE: ARCTIC MX-4 thermal paste is made of carbon microparticles, guaranteeing extremely high thermal conductivity. This ensures that...
  • SAFE APPLICATION: The MX-4 is metal-free and non-electrical conductive which eliminates any risks of causing short circuit, adding more protection to...
  • HIGH DURABILITY: In contrast to metal and silicon thermal compound, the MX-4 does not compromise over time. Once applied, you do not need to apply it...
  • EASY TO APPLY: With an ideal consistency, the MX-4 is very easy to use, even for beginners
Bestseller No. 2
ARCTIC MX-4 (incl. Spatula, 4 g) - Premium Performance Thermal Paste for all processors (CPU, GPU -...
  • WELL PROVEN QUALITY: The design of our thermal paste packagings has changed several times, the formula of the composition has remained unchanged, so...
  • EXCELLENT PERFORMANCE: ARCTIC MX-4 thermal paste is made of carbon microparticles, guaranteeing extremely high thermal conductivity. This ensures that...
  • SAFE APPLICATION: The MX-4 is metal-free and non-electrical conductive which eliminates any risks of causing short circuit, adding more protection to...
  • HIGH DURABILITY: In contrast to metal and silicon thermal compound, the MX-4 does not compromise over time. Once applied, you do not need to apply it...
  • EASY TO APPLY: With an ideal consistency, the MX-4 is very easy to use, even for beginners
Bestseller No. 3
Noctua NT-H1 3.5g, Pro-Grade Thermal Compound Paste (3.5g)
  • Renowned premium-grade thermal compound for optimal heat-transfer from the CPU or GPU to the heatsink; more than 150 awards and recommendations
  • Easy to apply (no need to spread before heatsink installation) and easy to clean with dry paper towel or tissue (no cleaning alcohol required)
  • Not electrically conductive and non-corroding thermal grease: no risk of short-circuits and safe to use with all types of heatsinks
  • Trusted Noctua quality with excellent long-term stability: recommended storage time up to 3 years, recommended usage time on the CPU up to 5 years
  • 3.5g pack for around 3-20 applications (depending on CPU size, e.g. ~3 applications for TR4, ~15 for AM4 or LGA1700, ~20 for LGA1200)
SaleBestseller No. 4
ARCTIC MX-4 (20 g) - Premium Performance Thermal Paste for All Processors (CPU, GPU - PC), Very high...
  • WELL PROVEN QUALITY: The design of our thermal paste packagings has changed several times, the formula of the composition has remained unchanged, so...
  • EXCELLENT PERFORMANCE: ARCTIC MX-4 thermal paste is made of carbon microparticles, guaranteeing extremely high thermal conductivity. This ensures that...
  • SAFE APPLICATION: The MX-4 is metal-free and non-electrical conductive which eliminates any risks of causing short circuit, adding more protection to...
  • 100 % ORIGINAL THROUGH AUTHENTICITY CHECK: Through our Authenticity Check, it is possible to verify the authenticity of every single product
  • EASY TO APPLY: With an ideal consistency, the MX-4 is very easy to use, even for beginners
Bestseller No. 5
ARCTIC MX-4 (8 g) - Premium Performance Thermal Paste for All Processors (CPU, GPU - PC), Very high...
  • WELL PROVEN QUALITY: The design of our thermal paste packagings has changed several times, the formula of the composition has remained unchanged, so...
  • EXCELLENT PERFORMANCE: ARCTIC MX-4 thermal paste is made of carbon microparticles, guaranteeing extremely high thermal conductivity. This ensures that...
  • SAFE APPLICATION: The MX-4 is metal-free and non-electrical conductive which eliminates any risks of causing short circuit, adding more protection to...
  • 100 % ORIGINAL THROUGH AUTHENTICITY CHECK: Through our Authenticity Check, it is possible to verify the authenticity of every single product
  • EASY TO APPLY: With an ideal consistency, the MX-4 is very easy to use, even for beginners
SaleBestseller No. 6
Thermal Grizzly Kryonaut The High Performance Thermal Paste for Cooling All Processors, Graphics...
  • EXTREMELY high thermal conductivity of 12.5KW achieved with even smaller particles, is perfect for even the most demanding configurations and can also...
  • THERMAL COMPOUND PASTE EASY TO USE - Thanks to a specially constructed syringe and a spatula for spreading thermal grease included. It guarantees a...
  • LONG ACTION - Provides long-lasting effect, thanks to its characteristic and specialized structure, Kryonaut thermal paste does not dry out even at...
  • SURPRISING EFFECTS - Already at the first use of this thermal solution, you may experience a drop in temperature, which will reduce the loudness of...
  • NUMBER 1 ON THE MARKET - Confirmed by many tests, the most popular choice meets the highest quality standards not only of standard computer users but...
Bestseller No. 7
Corsair TM30 Performance Thermal Paste | Ultra-Low Thermal Impedance CPU/GPU | 3 Grams|w/applicator
  • Enthusiast CPU Thermal Compound: Premium Zinc Oxide based thermal compound for optimal thermal performance.
  • Cools your CPU and GPU: Install new, or replace existing thermal compound on your CPU and GPU to improve heat transfer and lower temperatures.
  • Improved CPU Cooling: Ultra-low thermal impedance lowers CPU temperatures vs common thermal paste.
  • Installation Made Easy: An included application stencil and spreader take the guesswork out of applying XTM50 to your CPU cooler.
  • Filling the Gap: XTM50’s low-viscosity allows it to easily fill microscopic abrasions and channels for peak thermal transfer.
Bestseller No. 8
GENNEL G104 100 Grams Thermal Conductive Paste, Silicone Thermal Compound Grease, Heatsink Paste for...
  • Helps disperse the heat from CPU to heatsink effectively.
  • Suitable for: CPU, GPU ,heatsink, ovens, chipset, Xbox, High power LED and other components.
  • High temperature resistance, Non-Electrical Conductive, Non-toxic,Non-corrosive,Tasteless.
  • Thermal Conductivity: >1.63W/m-k , Thermal Resistance: <0.249°C-in2/W. , Net Weight: 100gram
  • Package Includes : 1 x GENNEL G104 100g White thermal grease paste, 1 x Thermal paste spatula
SaleBestseller No. 9
GENNEL 100gram Silver Silicone Thermal Conductive Compound Grease Paste For GPU CPU IC LED Ovens...
  • Helps disperse the heat from CPU to heatsink effectively.
  • Suitable for: CPU, GPU ,heatsink, ovens, chipset, Xbox, High power LED and other components.
  • High Performance! High temperature resistance, Non-Electrical Conductive, Non-toxic, Non-corrosive.
  • Thermal Conductivity: >3.17W/m-k , Net Weight: 100gram
  • Package Includes : 1 x GENNEL G107 100g Silver thermal grease paste, 1 x Thermal paste spatula
SaleBestseller No. 10
ARCTIC MX-5 (2 g) - Ultimate Performance Thermal Paste for All Processors (CPU, GPU - PC, PS4,...
  • EXTRA THIN BONDLINE: Perfect filling of micro-pores leads to lower thermal resistance - and may lead to stronger adhesion. Please refer to...
  • MULTIPLE VARIANTS: ARCTIC MX-5 is available in sizes ranging from 2 to 50 grams. Resealable packaging prevents the paste from drying out....
  • SAFE TO USE: ARCTIC MX-5 is completely metal-free, eliminating the risk of short circuits, discharges and corrosion damage to the radiator bottom
  • EASY APPLICATION: Thanks to its viscosity, MX-5 is easy to apply. It spreads evenly and allows for a very thin layer regardless of the application...
  • VERSATILE USES: Can be used on CPUs, GPUs and power semiconductor components. Thanks to its excellent properties, the ARCTIC MX-5 can be used in many...
Bestseller No. 11
GENNEL G104 100Grams Tube White Thermal Grease Paste, Thermal Compound Heatsink Paste for PC CPU...
  • Working principle: Fill the gap between heating element and the cooling device. Increase the contact area, so as to achieve the soundest effect of...
  • Non-Electrical Conductive, High temperature resistance, Non-toxic, Non-corrosive.
  • Suitable for: CPU, GPU ,heatsink, ovens, chipset, Xbox, High power LED and other components.
  • Thermal Conductivity: >1.63W/m-k, Thermal Resistance: <0.249°C-in2/W, Net Weight: 100grams
  • Package Includes: 1 x GENNEL G104 100g White thermal grease paste, 1 x Thermal paste spatula
Bestseller No. 12
Noctua NT-H2 3.5g, Pro-Grade Thermal Compound Paste incl. 3 Cleaning Wipes (3.5g)
  • Premium-grade thermal compound for optimal heat-transfer from the CPU or GPU to the heatsink; second generation of Noctua’s award-winning NT-H1
  • Easy to apply (no need to spread before heatsink installation) and easy to clean with supplied NA-CW1 cleaning wipes
  • Not electrically conductive and non-corroding thermal grease: no risk of short-circuits and safe to use with all types of heatsinks
  • Trusted Noctua quality with excellent long-term stability: recommended storage time up to 3 years, recommended usage time on the CPU up to 5 years
  • 3.5g pack for around 3-20 applications (depending on CPU size, e.g. ~3 applications for TR4, ~20 for LGA1200); includes 3 NA-CW1 cleaning wipes
Bestseller No. 13
GENNEL G2 20g High Performance Thermal Paste, Heatsink Paste, Thermal Compound Grease for CPU...
  • High Thermal Conductivity: >6.5W/m-k, Low Thermal Resistance: <0.0016°C-in2/W, Net Weight: 20grams.
  • Non-Electrical Conductive, No risk of short circuit, safe to use on many types of radiators, provide better protection.
  • High Temperature Resistance, Non-Electrical Conductive, Odorless, Non-Corrosive, Non-Toxic, Flame Retardant, High performance!
  • High-quality thermal conductive compound, Helps disperse the heat from CPU to heatsink effectively. Suitable for CPU, GPU ,heatsink, ovens, IC...
  • Package Includes: 1 x GENNEL G2 20grams thermal grease paste, 1 x Thermal paste spatula.
Bestseller No. 14
Noctua NT-H1 10g, Pro-Grade Thermal Compound Paste (10g)
  • Renowned premium-grade thermal compound for optimal heat-transfer from the CPU or GPU to the heatsink; more than 150 awards and recommendations
  • Easy to apply (no need to spread before heatsink installation) and easy to clean with dry paper towel or tissue (no cleaning alcohol required)
  • Not electrically conductive and non-corroding thermal grease: no risk of short-circuits and safe to use with all types of heatsinks
  • Trusted Noctua quality with excellent long-term stability: recommended storage time up to 3 years, recommended usage time on the CPU up to 5 years
  • 10g pack for around 9-60 applications (depending on CPU size, e.g. ~9 applications for TR4, ~60 for LGA1200)
Bestseller No. 15
HY-510-25g Thermal Conductivity: >1.93W/m-k Thermal Paste, Carbon Based High Performance, Heatsink...
  • EXCELLENT THERMAL CONDUCTIVITY:Thermal conductivity 1.93 W/m-k. It ensures that the heat generated by the CPU or GPU is effectively dissipated.and...
  • HIGH DURABILITY: Low thermal resistance can keep mushy for a long time. Wide operating temperature range, stable performance under -30℃-280℃...
  • EASY TO USE:Thermal paste has ideal consistency and is very easy to use even for beginners;it is also not electrically conductive : there is no risk...
  • SAFETY APPLICATION:The is metal-free and non-electrical conductive which eliminates any risks of causing short circuit, adding more protection to...
SaleBestseller No. 16
ARCTIC MX-2 (4 g) - Performance Thermal Paste for all processors (CPU, GPU - PC, PS4, XBOX), high...
  • WELL PROVEN QUALITY: The design of our thermal paste packagings has changed several times, the formula of the composition has remained unchanged, so...
  • HIGH PERFORMANCE: With excellent temperature reduction performance, the MX-2 is ideal for CPU and GPU cooling, and other applications between power...
  • SAFE APPLICATION: The MX-2 is metal-free and non-electrical conductive which eliminates any risks of causing short circuit, adding more protection to...
  • HIGH DURABILITY: In contrast to metal and silicon thermal compound, the MX-2 does not compromise over time. Once applied, you do not need to apply it...
  • EASY TO APPLY: With an ideal consistency, the MX-2 is very easy to use, even for beginners
SaleBestseller No. 17
Thermal Paste, SYY 2 Grams CPU Paste Thermal Compound Paste Heatsink for IC/Processor/CPU/All...
  • SAFETY APPLICATION: SYY is metal-free and non-conductive, which eliminates any risk of short circuit and adds more protection to the CPU and VGA card.
  • BETTER THAN LIQUID METAL: Thermal Conductivity:15.7W/m-k, it is composed of carbon particles and has extremely high thermal conductivity. It ensures...
  • THERMAL COMPOUND: SYY thermal paste Edition 2020 formula has excellent component heat dissipation performance and has the stability to push the system...
  • EASY TO APPLY: SYY thermal paste has ideal consistency and is very easy to use even for beginners.
  • HIGH DURABILITY: In contrast to metal and silicon thermal conductive adhesives, SYY thermal paste 2020 will not compromise over time. After applying,...
Bestseller No. 18
GENNEL G108 100g High Performance Thermal Paste, CPU Heatsink Paste, Thermal Compound, Carbon Based...
  • Excellent Thermal Conductivity: >4.63W/m-k, Thermal Resistance: <0.0087°C-in2/W, Net Weight: 100grams.
  • Non-Electrical Conductive, No risk of short circuit, safe to use on many types of radiators, provide better protection. High performance! Suitable for...
  • High Temperature Resistance, Non-Electrical Conductive, Odorless, Non-Corrosive, Non-Toxic, Flame Retardant.
  • High-quality thermal conductive compound, Helps disperse the heat from CPU to heatsink effectively.
  • Package Includes: 1 x GENNEL G108 100grams thermal grease paste, 1 x Thermal paste spatula.
Bestseller No. 19
GENNEL G106 100Grams Gold Thermal Paste, Heatsink Paste, Thermal Conductive Compound Grease for GPU...
  • Working principle: Fill the gap between heating element and the cooling device; Increase the contact area, so as to achieve the soundest effect of...
  • High performance heat sink paste! Suitable for CPU, GPU ,heatsink, ovens, IC chipset, PS4/PS5/Xbox, high power LED and other components.
  • Not electrically conductive, High temperature resistance, Odorless, Non-volatile, Non-corrosive, Non-toxic, Flame retardant.
  • Thermal Conductivity: >3.05W/m-k, Thermal Resistance: <0.073°C-in2/W.
  • Package Includes: 1 x GENNEL G106 100Grams Gold thermal grease paste, 1 x Thermal paste spatula.
Bestseller No. 20
GowizDream High Performance Thermal Paste (3g) for Cooling All Processors (CPU, GPU - PC, PS4,...
  • Composite thermal compound of the latest material, strong stability,thermal conductivity up to 12.8 W/mK, balance thermal resistance and viscosity,...
  • Easy to apply and easy to clean with dry paper or towel.Widely used for CPU, GPU, Coolers, IC Processor, Heatsink and DIY heat dissipation devices.
  • Non-volatile, flame retardant, metal-free,non-corroding and non-conductive, you can use it with confidence. This thermally conductive material has...
  • Each package comes with a separate scraper. 3g of silicone grease can be applied to about 5-15 CPUs.
  • 【GowizDream's After Sales Service】---GowizDream provides the ultimate after-sales service for every customer. If you are not satisfied with the...

Having trouble finding a great non conductive thermal paste?

This problem is well understood by us because we have gone through the entire non conductive thermal paste research process ourselves, which is why we have put together a comprehensive list of the best non conductive thermal pastes available in the market today.

After hours of searching and using all the models on the market, we have found the best non conductive thermal paste for 2023. See our ranking below!

How Do You Buy The Best Non Conductive Thermal Paste?

Do you get stressed out thinking about shopping for a great non conductive thermal paste? Do doubts keep creeping into your mind?

We understand, because we’ve already gone through the whole process of researching non conductive thermal paste, which is why we have assembled a comprehensive list of the greatest non conductive thermal paste available in the current market. We’ve also come up with a list of questions that you probably have yourself.

John Harvards has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for non conductive thermal paste that you consider buying. Your questions might include the following:

  • Is it worth buying an non conductive thermal paste?
  • What benefits are there with buying an non conductive thermal paste?
  • What factors deserve consideration when shopping for an effective non conductive thermal paste?
  • Why is it crucial to invest in any non conductive thermal paste, much less the best one?
  • Which non conductive thermal paste are good in the current market?
  • Where can you find information like this about non conductive thermal paste?

We’re convinced that you likely have far more questions than just these regarding non conductive thermal paste, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for non conductive thermal paste, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible non conductive thermal paste. Make sure that you are only using trustworthy and credible websites and sources.

John Harvards provides an non conductive thermal paste buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information.

How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available non conductive thermal paste currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

  1. Brand Value: Every brand of non conductive thermal paste has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an non conductive thermal paste?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your non conductive thermal paste.
  5. Customer Ratings: Number ratings grade non conductive thermal paste objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their non conductive thermal paste.
  7. Product Quality: You don’t always get what you pay for with an non conductive thermal paste, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an non conductive thermal paste is should be an indication of how long it will work out for you.

John Harvards always remembers that maintaining non conductive thermal paste information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding non conductive thermal paste is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly!

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FAQ:

Q: Which thermal paste is the best?

A: With an exceptional thermal conductivity rating of 73 W/mK, the Thermal Grizzly Conductonaut is one of the best thermal pastes you can buy in 2019. It can reduce the operating temperature of CPU or GPU by 10°C, thereby giving you a big headroom for overclocking.

Q: Which non metal is most conductive?

A: Diamond – 2000 – 2200 W/m•K Silver – 429 W/m•K Copper – 398 W/m•K Gold – 315 W/m•K Silicon carbide – 270 W/m•K Beryllium Oxide– 255 W/m•K Aluminum – 247 W/m•K Tungsten – 173 W/m•K Graphite 168 W/m•K Zinc 116 W/m•K

Q: What is the best thermal compound paste?

A: Arctic MX-5. … NAB Cooling NB Max Pro. … Noctua NT-H1. … Phobya Liquid Metal Compound LM. … Thermal Grizzly Conductonaut. … ProlimaTech PK-3 Nano Aluminum. … Cooler Master MasterGel Pro v2. …

Q: Does thermal paste ever go bad?

A: Does Thermal Paste Expire (or Go Bad)? Most definitely, Yes. All kinds of thermal compounds have a shelf life. Depending on the material, a thermal paste can expire in 3-5 years or even less if it is not stored in optimal conditions. Although, this lifespan depends largely on the kind of thermal paste you are using.