Thermal Grizzly Kryonaut - 37 Gram/10 ml - Extremly High Performance Thermal Paste - for Demanding Applications and Overclocking CPU/GPU/PS4/PS5/Xbox
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Availability:
In Stock.
Arrives
Sep 26 – Sep 27
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Size: 37 grams / 10 ml
Features
- EXTREME HEAT CONDUCTIVITY - With an exceptional thermal conductivity of 12.5W, Kryonaut is perfect for even the most demanding congurations and can be used in industrial cooling systems
- EASY APPLICATION - Featuring a specially designed syringe and spatula for spreading, Kryonaut guarantees effortless, comfortable, and precise paste distribution on your processor or graphics card
- LONG-LASTING EFFECT - Thanks to its unique and specialized structure, Kryonaut ensures long-lasting performance and does not dry out even at 80C
- SURPRISING IMPACT - Experience a temperature drop right from the rst use, reducing device heat and enhancing operational comfort
- MARKET LEADER - Proven through extensive testing, the top choice in the market meets the highest quality standards, satisfying not only standard computer users but also passionate overclocking enthusiasts
Is Discontinued By Manufacturer : No
Product Dimensions : 25.2 x 25.2 x 7.6 inches; 1.31 ounces
Item model number : TG-K-100-R
Date First Available : December 4, 2015
Manufacturer : Shinwa Sangyo (SHIJO)
Best Sellers Rank: #159 in Silicon Grease
Customer Reviews: 4.7 4.7 out of 5 stars 55,048 ratings
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Sep 26 – Sep 27
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Size: 1 Gram
Let me preface this whole things by saying that Kryonaut is a really good thermal paste for cpus. It helped decrease my tdie temps by a massive margin (over 5 degrees), and thermal conductivity is impressive while being easy to apply. But putting it on gpus... let's just say I bought this before I had actually done proper research because I had heard so much good about it. *sigh* time for the long boring essay... **TL;DR: pump out is bad for long term thermals and this has especially bad pump out. anything with IHS (cpu) gooood, anything without (delidded cpu, gpu, socs, laptops, etc.) baaad A lot of people tend to think thermal paste is either all the same or only look at conductivity. However, with this paste, I figured out the hard way that thermal paste is way more than heat dissapation. Pump out occurs through many repeated cycles of rapid heating and cooling and causes the thermal paste to dissipate outwards and leave little to no paste on the core, usually through a long time period (3-10 years, depending on quality). This is more prominent on gpus as those have no ihs and tend to heat and cool more violently than cpus do. Thicker, more viscous thermal pastes are less prone to this. Unfortunately, this thermal paste in particular has especially terrible pump out because it's thin and watery. It worked WONDERS on my cpu as I mentioned earlier. An already great temp of 65c or so fell to 55-60 while gaming in ambient 22-27c. No pump out issues and it stayed like this until I changed coolers. On my gpu, it worked well - at first. 55c with 8 degree delta between hot spot and core. It almost instantly (within a month or two) started to have bad deltas (meaning pump out was causing die to heat up in certain spots more than others). Delta was around 8c, then slowly rose to 15c+ (worst I saw was 20c) and core temp also rose from 55c to 60c to 65c. When I replaced it with a thicker, much more resiliant thermal paste (thermalright tfx), it has been consistently good at ~57-61c and 10-12c delta for the past 3 months. All in all, it's a great paste that has amazing thermal conductivity (although that standard is nonexistent). your cpu temps will drop if you are replacing old or otherwise low quality thermal paste. However, it's a lot of money for the amount of paste you get, and being the way it is, it is not designed for direct die contact, so bear that in mind. Be aware that different thermal pastes have different use cases, and this is not for gpus. If you want that from thermal grizzly, there is hydronaut and liquid metal (though I have not used either). I personally just recommend arctic mx5 and tfx and maybe noctua nt-h2.
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Reviewed in the United States on July 6, 2024 by Kane Zhang
Size: 1 Gram
I recently used Thermal Grizzly Kryonaut (1 Gram) for my CPU repaste, and I’m impressed with the results. This thermal paste is clearly engineered for high-performance applications and demanding systems like gaming PCs, overclocked setups, and even consoles such as PS4, PS5, and Xbox. Application was smooth and straightforward—the paste spreads evenly and has a nice consistency, not too thick or runny. After applying it to my CPU, I noticed a significant temperature drop under load, which gave me peace of mind, especially since I push my system with heavy gaming and mining. ✅ Pros: Extremely high-performance thermal conductivity Easy to apply with even spread Noticeable temperature reduction on CPU & GPU Ideal for overclockers and high-demand builds ❌ Cons: A bit pricey for the small 1g tube Best results only when applied carefully 💡 Tips: Clean off old paste thoroughly with isopropyl alcohol before applying. A pea-sized drop in the center usually works best for CPUs. For GPUs or larger dies, spread a thin, even layer for full coverage. Keep an extra tube on hand if you frequently build or repaste. Bottom Line: If you’re serious about system cooling and stability, Thermal Grizzly Kryonaut is worth every penny. It’s one of the best thermal pastes I’ve used, and I’ll definitely stick with it for future repasting jobs.
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Reviewed in the United States on August 17, 2025 by Kenny Campbell
Size: 1 Gram
Very effective at keeping temps low, only surpassed by Conductonaut in my experience (liquid metal). I was worried it would be way to thick to handle but it's not. I used the included plastic mini-spatula and the painters tape method to get a clean, even, 95% coverage on my cpu. Worked great! Only downside is the price point for the amount you get.
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Reviewed in the United States on August 13, 2025 by El. Machado
Size: 1 Gram
My laptop performed excellently after applying the paste. It's very good, and the one-gram jar lasts quite a while. Heat transfer is quite high compared to average. In short, it has good thermal conductivity, and is easy to clean.
Reviewed in the United States on July 10, 2025 by Juan Romero
Size: 1 Gram
Pretty good thermal paste! I used this for a new PC build, and so far, it’s performing well with no CPU thermal issues, even under heavy loads. The application was smooth, and it seems to be doing its job effectively. My only complaint is the price—it’s a bit on the expensive side compared to other options. That said, the performance justifies the cost to some extent, and I’m satisfied overall. If you’re looking for reliable thermal paste and don’t mind spending a bit more, this is a solid choice.
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Reviewed in the United States on January 14, 2025 by Mimiez