Duronaut high-end thermal paste with excellent long-term stability

Duronaut

Thermal Grizzly Duronaut is a high-performance thermal paste with exceptional long-term stability and superior thermal conductivity. It is an ideal choice for gamers and overclockers and serves as a top-tier product for demanding industrial cooling systems.

$13.92

Content: 2 g ($6.96 / 1 g)

Content

2 g

6 g

30 g

piece

EAN: 4260711991134 Copied!

MPN: TG-D-002-R Copied!

Product information "Duronaut"

Duronaut is a high-end thermal paste designed with a focus on outstanding thermal conductivity and exceptional long-term stability. The name "Duronaut" derives from the English word "durability," emphasizing its extraordinary longevity. This stability is achieved through a specially engineered silicone oil combined with aluminum microparticles and zinc oxide nanoparticles of various shapes. These optimized particle shapes and sizes minimize the "pump-out effect," ensuring excellent adhesion to surfaces and resulting in extremely low thermal transfer resistance.

Properties

Extreme long-term stability
Outstanding thermal conductivity
Electrically non-conductive
No hardening over time
Available in three sizes: 2g | 6g | 30g

Extreme durability and performance for your PC

The optimized particle shapes and sizes enable Duronaut to be applied in very thin layers, enhancing adhesion and minimizing thermal resistance. This thin application layer, coupled with the high conductivity of the aluminum micro and zinc oxide nanoparticle mix, ensures efficient heat transfer between the heat source (e.g., a CPU) and the cooler.

Extreme long-term stability

Outstanding thermal conductivity

Electrically non-conductive

No hardening over time

Matching accessories

For optimal application, the TG Spatula Pro is included with Duronaut. The spatula's revised design allows for increased pressure during application, ensuring efficient spreading and a thinner layer of thermal paste.

Scope of Delivery

1x Duronaut 2g
1x Applicator
1x TG Spatula
1x TG Spatula Pro

Duronaut

Which version of Duronaut suits my application, and what thermal conductivity and cooling performance does it offer?

Duronaut combines high cooling performance with a particular focus on long-term stability and low pump-out. 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. 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.

How do I apply the correct amount of Duronaut in a thin, even layer?

Clean and degrease the CPU or GPU and the cooler's contact surface, then let them dry. Apply Duronaut at room temperature to clean, dry contact surfaces. Use the spatula to spread the paste very 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. It is necessary for high long-term stability. 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, but can make application easier. However, applying too much does not result in worse temperatures. Excess paste is squeezed out of the gap. TG Spatula Pro is particularly suitable for applying Duronaut. You can also find application video tutorials on the Thermal Grizzly YouTube channel.

How long does Duronaut last in use, what is pump-out, and when should I replace it?

There is no universal replacement interval for Duronaut 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. Duronaut has been optimized for high long-term stability and minimal displacement from the contact area. Nevertheless, apply the paste in a thin, even layer and follow the cooler's mounting instructions. Complete freedom from pump-out cannot be guaranteed in every application. If temperatures rise, first check the cooler installation, cooling performance and contact pattern.

Is Duronaut suitable for laptop CPUs and GPUs?

Duronaut 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 is designed for particularly high long-term stability and low pump-out, making it well suited to these applications.

Why are temperatures with Duronaut too high or higher than expected?

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 Duronaut. 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.

Is Duronaut suitable for direct-die cooling or a delidded CPU?

In principle, Duronaut can be used directly on a silicon die if the cooler and its mounting system are designed for this purpose. For Thermal Grizzly direct-die coolers and the underside of our High Performance Heatspreaders, we recommend using liquid metal such as Conductonaut or Conductonaut Extreme. General suitability for thermal paste does not override this product-specific requirement. Duronaut can be affected by pump-out in direct-die CPU applications.

Is Duronaut compatible with my CPU, GPU or cooler combination?

Duronaut 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.

How can I check whether my Duronaut is genuine, and what should I do if the verification code is invalid?

If your Duronaut 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.

What temperature range and extreme conditions is Duronaut suitable for?

Duronaut was developed for a temperature range of −150 to +150 °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.

Is Duronaut electrically conductive, and how do I prevent short circuits?

Duronaut 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.

Can I use Duronaut in a games console?

Duronaut 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.

Where can I find instructions, datasheets and safety or compliance documentation for Duronaut?

Available instructions, technical data sheets, safety data sheets and conformity documents for Duronaut 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.

How do I remove Duronaut or clean the contact surfaces?

First remove Duronaut 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.

Is a new version or another model of Duronaut planned?

In 2026, Duronaut was complemented by the further-developed Duronaut Pro. Duronaut Pro offers even better performance while maintaining very good long-term stability.

Downloads "Duronaut"

Goes perfectly with it:

TG Spatula

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

From $5.73

TG Cleaning Wipes

Wet and dry cleaning wipes for cleaning surfaces

$12.75

TG Remove

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

$13.92