Skip to main content Skip to search Skip to main navigation

Product information "Hydronaut"

Hydronaut can be used for overclocking due to it's excellent thermal conductivity, but it was created specifically for users with larger-scale cooling solutions, who are looking for a quality product with an excellent price-performance ratio, for example for their water cooling system.

Properties

  • suited for Overclocking
  • excellent thermal conductivity
  • no curing
  • Silicone-free
  • no electrical conductivity
  • Available in four sizes: 1g | 1.5ml | 3ml | 10ml
1-Content_Hydronaut_US
2-Content_Hydronaut_1g

Specially developed for large-surface heat transfer mediums

The Hydronaut thermal paste delivers optimal heat transfer capabilities for larger-scale cooling solutions like water cooling systems.

Hydronaut thermal paste consists of a silicon-free structure. This makes it very light, highly flexible and easy to apply.

Hydronaut achieves best results if used on medium- to large-scale cooling solutions. This product is ROHS-compliant for demanding users.


thermal_conductivity_TG
excellent thermal conductivity
overclocking_TG
suited for Overclocking
no_hardening_TG
no curing
electrically_non-conductive_TG
no electrical conductivity

Scope of Delivery

  • 1x Hydronaut 1g
  • 1x TG Spatula
  • 1x Manual
  • 1x Certificate of origin

3-Content_Hydronaut_1g

Hydronaut

There is no universal replacement interval for Hydronaut once installed in a system. Check temperatures under comparable loads and at comparable ambient temperatures. Replace the paste if temperatures show a confirmed deterioration or if you have removed the cooler. A universal service life cannot be specified. Temperature changes can gradually displace thermal paste from the contact area, a process known as pump-out. A thin, even layer of Hydronaut and correct cooler installation reduce this risk, but cannot eliminate it in every configuration. Duronaut and Duronaut Pro are designed for particularly high long-term stability. If temperatures rise again, also check the contact pattern.
Hydronaut is a silicone-free thermal paste for large contact surfaces, powerful cooling systems and applications where a silicone-free formulation is important. The temperature you can achieve depends on power consumption, the cooler, the contact surfaces and installation. A fixed temperature advantage over other thermal interface materials therefore cannot be specified for every system. Compare performance under the same conditions. Thermal Grizzly has not published general W/(m·K) ratings since the end of 2020. A single thermal conductivity value does not allow a reliable comparison of cooling performance, as the test method, temperature, mounting pressure and contact surfaces all affect the result.
Available instructions, technical data sheets, safety data sheets and conformity documents for Hydronaut can be found in the downloads section of the product page. Check the exact product name and item number. A technical data sheet does not replace a safety data sheet. If a document or language version is missing, tell us the item number and which document you need.
Hydronaut was developed for a temperature range of −200 to +350 °C. This material specification is not a blanket approval for every continuous high-temperature process. For special applications, exposure duration, contact materials, layer thickness and mechanical loads must be assessed separately. Thanks to its silicone-free matrix, Hydronaut is ideally suited to various industrial applications.
Clean and degrease the CPU or GPU and the cooler's contact surface, then let them dry. Apply Hydronaut at room temperature to clean, dry contact surfaces. Use the spatula to spread the paste slowly into a thin layer, applying even pressure. Avoid fast wiping movements, as they can lift the paste off the surface again. A thick consistency is not a defect in itself. Do not use solvents or oils to thin the paste, and do not press on the edges of exposed dies. Warming the product with a hair dryer can make it easier to apply. The amount needed depends on the contact area. Cover it completely with a thin layer, especially on exposed dies. A thick layer or a large amount extending beyond the contact area is not necessary. However, applying too much does not result in worse temperatures. Excess paste is squeezed out of the gap.
First check that the cooler is seated correctly, the mounting pressure is even, the fans or pump are working correctly (for liquid cooling), and the contact surface is fully covered. When reinstalling the cooler, remove old residue and apply a fresh, thin layer of Hydronaut. Compare temperatures at the same room temperature and power consumption. CPU boost can turn improved heat transfer into higher performance rather than lower temperatures. Therefore, always check whether the CPU or GPU clock speed has changed as well.
Hydronaut can be used on CPU and GPU dies in laptops if the cooling system is designed for thermal paste and makes reliable contact. Cover the entire die with a thin layer. Larger gaps around memory and voltage regulators require suitable pads or putty. If pump-out keeps occurring, long-term stability and the specific cooler geometry matter more than a general comparison value. Duronaut or Duronaut Pro are generally better suited to laptops.
Hydronaut is intended for direct contact between the CPU or GPU and a correctly installed cooler. Conventional thermal pastes can be used on common copper, nickel or aluminum contact surfaces. Follow the cooler manufacturer's instructions. Larger gaps around VRAM or VRMs require suitable pads or putty. The paste is not suitable for bridging gaps larger than 0.2 mm.
If your Hydronaut package includes an authentication card, check the code on the official website printed on it. A missing code or different packaging alone does not prove that a product is counterfeit, as package contents and packaging can vary by product and batch. If the code is invalid, send us photos of the product, packaging, code and proof of purchase so we can check them. Whenever possible, buy from a retailer on our reseller list.
Hydronaut is not electrically conductive. Nevertheless, only apply the paste to the intended contact surface. Residue in the socket or on connector contacts can interfere with mechanical and electrical contact. The paste is not a certified electrical insulator for high-voltage applications.
For direct-die applications such as delidded CPUs, we recommend our high-performance products and specifically liquid metal such as Conductonaut and Conductonaut Extreme.
Hydronaut is suitable for contact areas in consoles that are designed to use thermal paste. First check the exact console model and the thermal interface materials already in use. The VRAM and VRM pads must remain in place or be replaced with pads of a suitable thickness. A contact area originally designed for liquid metal, such as in a PS5, should not be converted to paste without first checking the cooling design.
First remove Hydronaut from the surface using a dry, lint-free cloth. Then clean the surface with isopropyl alcohol or a material-compatible TIM cleaner such as TG Remove. TG Cleaning Wipes include both dry wipes and wet wipes soaked in cleaning agents. Keep cleaning agents out of sockets and connectors, and allow all surfaces to dry completely. Use fresh paste when reinstalling the cooler.
After use, seal the Hydronaut syringe tightly and store it in its original packaging in a dry place, protected from light and major temperature fluctuations. Shelf life is different from service life once installed in a system. Before using older paste, check it for contamination and unusual consistency. If you are unsure, we can check the batch using photos and purchase details. An unopened tube of Hydronaut can be used for up to 10 years. An opened tube of Hydronaut should be used within 4 years.
Color: gray
Density: 2.6g/cm³
Electrical conductivity: 0 pS/m
Operating temperature: -200°C to +350°C
Viscosity: 140 - 190 Pa⋅s

Goes perfectly with it:

Skip product gallery
Spatule
TG Spatula

Spatula for even and precise distribution of thermal paste, suitable for all Thermal Grizzly pastes

Regular price: From $5.73
TG Cleaning Wipes
TG Cleaning Wipes

Wet and dry cleaning wipes for cleaning surfaces

Regular price: $12.75
TG Remove
TG Remove

Effective acetone-based nano-cleaner for removing thermal paste and liquid metal

Regular price: $13.92