Thermal Grizzly Kryonaut - 5.55 Gram/1.5ml - High Performance Thermal Paste
Bottom line: The Thermal Grizzly Kryonaut ($23.99 on Amazon as of 2026-11-07 17:13 UTC): 5.55 g / 1.5 ml tube covers many repastes across CPU, GPU, and console jobs; main trade-off: costs more per gram than budget pastes at the same 5.55 g size.
As an Amazon Associate, SpecPicks earns from qualifying purchases. Full disclosure →
*Price sourced from Amazon.com. Last updated 2026-11-07. Price and availability subject to change.
Pros & Cons
Pros
- ✓ 5.55 g / 1.5 ml tube covers many repastes across CPU, GPU, and console jobs
- ✓ Rated by Thermal Grizzly not to dry out at sustained 80 C operation
- ✓ Spatula included with the syringe, so no improvised spreading tools needed
- ✓ Manufacturer targets overclocking and industrial cooling, not just stock loads
Cons
- ✗ Costs more per gram than budget pastes at the same 5.55 g size
- ✗ Non-conductive status is not stated in the listing, so spills near pins need care
- ✗ No listed cure or burn-in time, so expected temps may shift after first mounts
- ✗ Large syringe can dry in storage if the cap is left off between builds
Manufacturer description
EXTREME HEAT CONDUCTIVITY - With an exceptional thermal conductivity, 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 80°C
SpecPicks Verdict
SpecPicks scored Thermal Grizzly Kryonaut using a rating × review-volume × price-fit model applied to published specs and reviews across the accessories category. Thermal Grizzly's accessories lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for accessories of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Frequently Asked Questions
How many times can I repaste with the 5.55 gram tube?
This is the 5.55 gram (1.5 ml) size, the larger Kryonaut tube. Exact coverage depends on die size and how thick you spread, but it is sized for repeated CPU, GPU, and console applications rather than a single build.
Does Kryonaut work on a PS5 or Xbox?
Yes. Thermal Grizzly lists PS4, PS5, and Xbox alongside CPU and GPU as intended applications for this paste, which is why the larger syringe is popular for console teardowns.
Will it dry out over time?
Thermal Grizzly states Kryonaut does not dry out even at 80 degrees Celsius, citing its specialized structure for long-lasting performance. Real-world lifespan still depends on your mounting pressure and thermal cycling.
Do I need to buy a spreader separately?
No. The package includes a spatula designed for spreading, alongside the application syringe, so you can lay down an even layer without a separate tool.
Is this paste worth it over a cheaper option?
At 5.55 grams it is priced above budget compounds, but it is aimed at overclocking and high-heat builds where headroom matters, so it makes the most sense if your build will push temperatures. Check the current listing for today's price.
Key Features
- EXTREME HEAT CONDUCTIVITY - With an exceptional thermal conductivity, 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 80°C
- 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
Full Specifications
| Size | 5,55 Gramm / 1,5 ml |
|---|---|
| Brand | Thermal Grizzly |
| Color | Silver |
| Model | TG-K-015-R |
| Warranty | One year manufacturer |
| UnitCount | 1 |
| ReleaseDate | 2023-01-01T00:00:01Z |
| Manufacturer | Thermal Grizzly |
| ItemPartNumber | TG-K-015-R |
Hardware benchmark data
Ready to buy?
Thermal Grizzly Kryonaut - 5.55 Gram/1.5ml - High Performance Thermal Paste is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-11-07. Price and availability subject to change.
Read our analysis
SpecPicks coverage that features this Accessorie.
Related Accessories
More guides & deep dives from the SpecPicks archive
Browse all articles & guides →- Best 1440p Gaming GPUs in 2026
- How to Build a Windows 98 Retro PC in 2026
- Best Budget Gaming PC Build 2026 — ~$1,000 Parts List
- RTX 4070 Super vs RX 7800 XT — Which to Buy in 2026
- Best Retro Handhelds in 2026 — From $35 to $500
- The Complete Voodoo5 5500 AGP Driver Guide (2026 Edition)
- Emulation Hardware in 2026: FPGA, Software, and Cart-Reader Ecosystems
More reviews from the SpecPicks archive
Browse all reviews →- Best SSD for 2000s LAN Party PC Builds (2026)
- Best CPU for a Budget AI + Gaming Rig: Ryzen 7 5700X vs 5800X vs 5600G
- RTX 3060 Drop-In vs AM4 Rebuild for an i7-9700K in 2026
- Raspberry Pi OS Moves to Linux 6.18 LTS: Performance Gains for Pi 4 Owners
- Best Raspberry Pi 4 8GB Retro Emulation Setup in 2026
- GPT-5.5 Instant Shipped: What an RTX 3060 12GB Local Stack Covers When OpenAI Retires a Model
- OpenAI Codex Now Drives Windows Autonomously: What It Means for Local AI Rigs
- Qwen3 0.6B: Raspberry Pi 4 8GB vs Ryzen 5 5600G for Tiny-Model Hosts (2026)
- AMD Instinct MI300X vs Consumer GPUs: What Local AI Builders Should Buy in 2026
- Retro Games With 1:1 Remakes: The Faithful Rebuild List
- Best GPU for Ryzen 7 9800X3D in 2026: Pairing Guide
- Build a 2001 GeForce3 + Win98 SE Gaming Rig in 2026: Parts and Gotchas
- Gemma 4 31B on a 12GB RTX 3060: Quantization, VRAM, and Real tok/s
- Best USB Microphones for Streaming and Podcasting (2026)
- Can a 12GB RTX 3060 Still Run 2026's Local LLMs?
- Best GPU for ComfyUI and SDXL Under $400 in 2026
- Best Travel Gaming Kit in 2026: 5 Picks for Hotels and Flights
- Ollama on Intel + AMD via IPEX-LLM: Docker Compose Guide
- Best PC Couch-Gaming Setup in 2026: Controllers, Display, and Audio
- Inkling 975B Open Weights: What a Frontier Speech Model Means for Local Rigs
- Surprise AI Bills: Moving LLM Work to a Local RTX 3060 12GB Rig
- M5 vs DGX Spark vs Strix Halo vs RTX 6000: AI Workload Guide
- Claude Opus 4.8 vs Local LLM on RTX 3060 12GB: Honest 2026 Benchmarks
- Can You Build an $800 Gaming PC in 2026? Parts + Cost
Earliest SpecPicks reviews
Browse full archive →- Best GPU for Llama 3.1 8B (2026)
- Best GPU for Qwen 3 14B (2026)
- Best GPU for Qwen 3 32B (2026)
- Best GPU for Llama 3.1 70B (2026)
- Best GPU for DeepSeek-R1 32B (2026)
- Best GPU for Llama 3.1 405B (2026)
- How to run Llama 3.1 8B on NVIDIA GeForce RTX 5090
- How to run Qwen 3 14B on NVIDIA GeForce RTX 5090
- How to run Qwen 3 32B on NVIDIA GeForce RTX 5090
- How to run Llama 3.1 70B on NVIDIA GeForce RTX 5090
- How to run DeepSeek-R1 32B on NVIDIA GeForce RTX 5090
- How to run Llama 3.1 8B on NVIDIA GeForce RTX 4090