The 10 Best High Viscosity Thermal pastes (2023 reviews)

We consider a high viscosity thermal paste to be a worthy investment in the long run. We are here to help you choose the right one for your needs from all the best available products in market today.

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Our Top Picks:

Best Overall: Buy: Noctua High Viscosity Thermal Paste READ REVIEW

Best For Use: Buy: Arctic Thermal Paste READ REVIEW

Best For pcs: Buy: Arctic Silver High Viscosity Thermal Paste READ REVIEW

Best For Threadripper: Buy: Rmal Grizzly Kryonaut Thermal Paste READ REVIEW

Best For LED light: Buy: Arctic High Viscosity Thermal Paste READ REVIEW

Best For Xbox One X: Buy: Corsair High Viscosity Thermal Paste READ REVIEW

Best For High Temperature: Buy: Rmal Grizzly High Viscosity Thermal Paste READ REVIEW

Best For Price: Buy: SYY High Viscosity Thermal Paste READ REVIEW

Best For money: Buy: Coolercube High Viscosity Thermal Paste READ REVIEW

Best With Liquid Cool systems: Buy: Cooler Master High Viscosity Thermal Paste READ REVIEW

Best Overall: Noctua High Viscosity Thermal Paste

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The noctua high viscosity thermal paste is capable of outshining several other paste featured in this list in overall features. This is the best non-conductive thermal paste around. It's top notch stuff even better than Arctic Silver. A hybrid compound of different micro-particles allows for minimum thermal resistance, excellent ease of use and outstanding long-term stability. It is a thermal compound. It doesnt have a set in or break in time so you can expect it to perform well right after application.

For the vast majority of thermal paste usage this stuff is golden. It is perfect for use on video chips with no ihs. There is plenty of thermal compound in this tube.

• Solid performing product that provides long term cooling properties
• Solid thermal compound, will reduce temperatures by a few degrees over stock paste
• Easy to work with, performs well compared to other thermal pastes
• Works great have lots left time to do the other computers

Best For Use: Arctic Thermal Paste

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The arctic thermal paste gives the top-tier paste a run for their money by offering flagship specs at a much more affordable price. It is great for a cpu upgrade project. It comes with its outstanding performance, the mx-4 is not only an excellent choice for overclockers and enthusiasts, but also for other sapplications that require thermal transmission. It works well, easy to apply, easy to spread, easy to clean up, and the best part is that this paste is non-conductive. It also reduces temps slightly more than Arctic Silver.

It is an older Optiplez 755 with quad core Intel processor, and the heat sink material on it has baked to a hard cake. It provides the best cooling, but it is one of the lower cost options and is only marginally less efficient at cooling. The thermal performance of this paste is top tier. It is highly recommended to put new down anytime you separate the cooler from the CPU.

• Great cpu compound, easy to use and works perfectly
• Works great with raspberry pi and kuma heatsink
• New and hot release

Best For pcs: Arctic Silver High Viscosity Thermal Paste

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Arctic Silver line of paste come in a pretty wide variety of styles, so you can definitely find one that suits your individual preferences and needs. This thermal paste is great to mantain cpu temperatures low. Even if it's one degree, or keeps the temp down an extra minute or so on a failing part, it works very, very well. It's a polysynthetic conductive material. It cools down super faster. The fan is very silent as these fans adjust their speed as required.

The syringe applicator makes the product extremely easy to use. It's non conductive and it gives much cooler temps than your stock thermal paste. It is easy to apply, and it does an amazing job.

• Works great for xbox rrod repair
• Goes on very smoothly and covers easily
• Works great on cpu's, gpu's, ram and mosfet's

Best For Threadripper: Rmal Grizzly Kryonaut Thermal Paste

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The rmal grizzly kryonaut thermal paste should be able to handle its purpose and duties with ease. The materials used in manufacturing are a much higher quality. It is the highest heat conductor made as of. You can safely use this on copper as well, but the Conductonaut has a higher thermal transfer than Kryonaut. It is easy to work with, using the included spreader. It is easy to apply even for the novice technician.

There is a big leap by 10 deg from their best supplement, but the scales are basically based on time over temp change. It allows for long-lasting effectiveness, even at temperatures up to 80 degrees celsius without drying out.

• Great thermal paste and easy to use
• 42 degrees celsius, no gaming usage
• Easy to apply, working as expecteddecent tempsusing with 5800x

Best For LED light: Arctic High Viscosity Thermal Paste

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If you often find yourself scrambling for appropriate and satisfactory paste, arctic high viscosity thermal paste should be your first option for buying. This thinner formulation is easier to apply and better for heat transfer. It comes with its outstanding performance, the mx-4 is not only an excellent choice for overclockers and enthusiasts, but also for other sapplications that require thermal transmission. It is easy to spread and excellent adhesion to the cpu. It is operating at full capacity and is rather quiet.

The Easy applicator tube with a smooth plunger action makes precision very easy. It is easy to use, not super thick so applied easily. There is a small plastic spatula included to spread the paste on the CPU or heatsink. It does not come with an alcohol pad.

• Works great on 3d printer throats and heater blocks
• Easily spreadable and great cost value
• High quality thermal paste, a little goes a long way
• Very easy to apply and works like the high end pastes out there

Best For Xbox One X: Corsair High Viscosity Thermal Paste

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We know from years of feedback from readers, customers and amazon sellers, what most people want in a convenient and appropriate paste. The corsair high viscosity thermal paste is exactly that - it's a simple paste that hits all the right notes. Ultra-low thermal impedance lowers cpu temperatures vs common thermal paste. It will not tarnish or corrode copper. This product does it's intended function and is easy to apply. It comes with a stencil you apply to your CPU cooler. It's 5 grams of thermal paste. This actually helps with cooling very well, and is very easy to remove. It is easy to spas and shows up on time.

It's made with actual passion.

• Comes with an outline that helps applying it properly and mess free
• Gives you an ample amount of compound to use for several builds
• Works great and perfect amount for a couple small jobs
• Runs nice and cool, not messy

Best For High Temperature: Rmal Grizzly High Viscosity Thermal Paste

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Rmal Grizzly is known for creating pragmatic and minimalist paste for people on the go, and its line of rmal grizzly high viscosity thermal paste definitely falls in line with that reputation. The Kryonaut extreme thermal paste comes here as a syringe with 2 g content for about 6 applications. It works with copper well plus it is 65 with 60% fan speed. The contrast in color between the paste and cpu makes it much easier to tell the width of the layer you have spread. It is suitable for particularly low temperatures down to.

This Thermal Paste works with copper well. It is designed to evenly spread the grease. As its name suggests, it is ideal for low-temperature cooling such as nitrogen or compressor cooling. It comes with the certificate and serial number.

• Great at reducing cpu heat you really notice a difference
• Keeps it cool, easy to use
• One of the new comers and featured product

Best For Price: SYY High Viscosity Thermal Paste

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The syy high viscosity thermal paste should be able to handle its purpose and duties with ease. This thick juicy and warm paste does the job just right and it might work for you too. It is made by high quality materials to get better thermal conductivity, and there is an exclusive design that it is a little thicker while using, to avoid it flowing to the hardware around the cpu. This is thermal paste for heat dissipation in electronic devices. It is metal-free and non-conductive, which eliminates any risk of short circuit and adds more protection to the cpu and vga card.

It comes with one stick you could probably use on your gpu and your cpu. It has ideal consistency and is very easy to use even for beginners. This is somewhat different from a very fluid-like type such as AS5 which actually needs time to cure.

• Clean the surface of cpu and heat sink with cleaning wipes
• Very simple and so easy to use
• Excellent thermal conductivity with good viscosity

Best For money: Coolercube High Viscosity Thermal Paste

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Next on the list, we've got yet another paste that manages to win our hearts. It's the coolercube high viscosity thermal paste and it's widely considered as paste that has the most suitable features. It is used for cpu, gpu, coolers, ic processor, heatsink and diy heat dissipation devices, suitable for beginners. It serves better for desktop GPUs as those are either upwards horizontal or vertical, while in laptops their GPU is downwards horizontal so a thin substrate will leak. It comes with a cleaning pad, a scraper, and a little spatula to spread your grey peanut butter on your nice new cpu evenly, before you smash the cooler down on top.

This is a great amount of paste and it is so easy and intuitive to apply it. This will make sure that the heat generated by your cpu gets properly dissipated to the heat sink and cooling fan, your cpu/gpu wont work without it.

• Good thermal insulation is a must
• A good heat sink paste for any component that requires heat transfer
• Comes with a little cleaning wipe
• Easy to use just put a little dab on there and spread it out

Best With Liquid Cool systems: Cooler Master High Viscosity Thermal Paste

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The cooler master high viscosity thermal paste gives the top-tier paste a run for their money by offering flagship specs at a much more affordable price. This is an amazing compound that works great on XBOX360's and PS3's. It comes with lots of thermal paste and a little plastic card to spread it across. It has a inner cap that is sort of spring loaded against the lid to keep it airtight. It will easily pump through vias and get a bit messy.

This is the best thermal compound to use, it never dries, and it is not that hard to clean up. It's easy to apply. The tube has a click on top and it comes with a small plastic card to spread it across. It's a great value for the amount that you get.

• Good thermal paste, it's very handy for putting on gpu cooler
• Works well in coupling a heat sink to the heat source
• Makes a pentium 4 run rather cool
• Best thermal stability in high temperature