Your data. Your choice.

If you select «Essential cookies only», we’ll use cookies and similar technologies to collect information about your device and how you use our website. We need this information to allow you to log in securely and use basic functions such as the shopping cart.

By accepting all cookies, you’re allowing us to use this data to show you personalised offers, improve our website, and display targeted adverts on our website and on other websites or apps. Some data may also be shared with third parties and advertising partners as part of this process.

Best selling Coolants for water coolers

Here’s a ranking of the best selling Coolants for water coolers. To give you a quick overview, we’ve added the most important information about each product. This page always stays fresh and updates automatically.

1. Thermaltake Premium Concentrate Purple

The TT Premium Concentrate series has been specifically developed for the Thermaltake C1000 Opaque Coolant White and C1000 Pure Clear Coolant. It is a ready-to-mix corrosion protection concentrate for coloring the coolant in liquid cooling systems. The concentrate is virtually odorless and non-flammable, providing excellent protection for copper, nickel, brass, and aluminum. 

2. EKWB EK CryoFuel Mystic Fog

EK CryoFuel Mystic Fog by EK Water Blocks is a high-quality water additive specifically designed for water cooling systems. This coolant not only provides excellent cooling performance but also boasts remarkable color stability that lasts over time. With a formulation that is 90% biodegradable, EK CryoFuel Mystic Fog represents an environmentally friendly choice. The liquid is compatible with various plastics such as acetal, acrylic, and rubber, and contains bio-growth inhibitors to prevent the growth of microorganisms. These features make the product ideal for enthusiasts and gamers who value performance and sustainability. Using EK CryoFuel Mystic Fog ensures not only efficient cooling but also an appealing aesthetic in your system, as the color particles do not sediment and the fresh coloration is maintained for a long time.

- Long color stability with intense brightness
- Compatible with acetal, acrylic, and rubber
- Contains bio-growth inhibitors
- Corrosion protection for long-lasting performance
- 90% biodegradable within 10 days.
 

3. EKWB EK-CryoFuel, 1000ml ready-mix - Clear

Ready-to-use transparent coolant for water cooling systems from EKWB. The bottle contains 1000 millilitres of finished mixture from the EK CryoFuel series with bio growth inhibitors and corrosion protection with high material compatibility.

The features of the EK-CryoFuel coolant at a glance:
Compatible with copper, brass, aluminum, stainless steel, acetal (POM), acrylic, rubber (NBR, EPDM, Neoprene)
Incl. bio growth inhibitors
With corrosion protection
90% biodegradable within 10 days
 

4. Aqua Computer Double Protect Ultra 5l canister

DP Ultra is the result of extensive testing and contains specially coordinated active ingredients that guarantee optimal protection against corrosion and excellent cooling performance. It is produced under high-quality standards and using the highest quality, completely pure active ingredients, entirely in Germany. DP Ultra has been specifically developed for use in PC cooling systems with copper and aluminum components and is only minimally electrically conductive. The active ingredients also reduce bubble formation and optimize heat transfer at surfaces by improving the flow behavior of the coolant, leading to optimal cooling performance in your system. DP Ultra is a clear and nearly odorless solution. DP Ultra was developed directly by Aqua Computer in collaboration with Dr. Tobias Voigt. Compared to other available ready-to-use mixtures, DP Ultra achieves very good cooling performance and improves flow behavior due to its ingredients. DP Ultra is pre-measured and ready to use. We recommend an annual replacement of the coolant. 

5. Aquatuning AT-Protect Crystal Blue

Ready-to-use coolant that can be added directly from the bottle into the cooling system without mixing with water. Specifically developed for closed water cooling systems, it provides effective and long-lasting corrosion protection for PC cooling systems that use different materials (e.g., copper, brass, plastics, seals). The included corrosion inhibitors work effectively and preventively, protecting the system over an extended period.

The dosing is very simple, as AT-Protect can be used undiluted to fill a water cooling system. To maintain the exact dosage, AT-Protect must not be diluted further (e.g., with water). AT-Protect is odorless, colorfast, non-flocculating, and glows in its characteristic color when exposed to UV light (LEDs, cathodes).

AT-Protect-UV-green does not contain Glysantin or glycol, and therefore does not reduce the water's heat absorption. This makes it particularly suitable for high-performance PC water cooling systems.

Warnings: Contains ethylene glycol. Keep out of reach of children, rinse immediately with water in case of contact, and seek medical attention.

Note: Since this concentrate contains dyes, it is possible that it may stain clothing or other materials upon contact. We also want to point out that dyes may fade over time, which can lead to a decrease in color intensity.
 

6. Aquatuning AT-Protect

Ready-to-use coolant that can be added directly from the bottle to the cooling system without mixing with water. Specifically developed for closed water cooling systems, it provides effective and long-lasting corrosion protection for PC cooling systems that use different materials (e.g., copper, brass, plastics, seals). The included corrosion inhibitors work effectively and preventively, protecting the system over an extended period.

The dosage is very simple, as AT-Protect can be used undiluted to fill a water cooling system. To maintain the exact dosage, AT-Protect should not be further diluted. AT-Protect is odorless, colorfast, non-flocculating, and glows in its characteristic color when exposed to UV light.

AT-Protect-UV-green does not contain Glysantin or glycol, thus it does not reduce the water's heat absorption. Therefore, it is particularly suitable for high-performance PC water cooling systems.

Warning: Contains ethylene glycol. Keep out of reach of children, rinse immediately with water in case of contact, and seek medical attention.

Note: Since this concentrate contains dyes, it may discolor clothing or other materials upon contact. It should also be noted that dyes may fade over time, which can reduce the intensity of the color.
 

7. Alphacool Ice water

With the Alphacool Ice Water Crystal, the water cooling pioneer Alphacool fulfils the wishes of many modders and enthusiasts: crisply beautiful colours, great effects in Plexi coolers, hoses and expansion tanks as well as longevity and compatibility with the materials used. The Alphacool Ice Water Crystal series has been tested for more than 1.5 years for all possible applications in the Alphacool laboratory as well as by external testers and modders and has been found to be very good and durable. If you want to give your PC an extra portion of luminosity, you can use the Alphacool Crystal UV ice water. The UV reactivity with UV LEDs or cathodes is outstanding. With the Alphacool ice water you give your water cooling an optical highlight with best cooling performance and longevity. 

8. Aquatuning Corrosion protection AntiCorro-Fluid

Concentrate: slightly brownish; finished coolant: nearly clear.
Suitable for: systems with copper and/or aluminum components.
Due to the low additive amount,
the high heat capacity of water is almost completely retained.
Contains no glycol, but hydroxyphosphonocarboxylic acid!

This additive does not contain antifreeze. Important note:
Only use the additive in clean systems. For example, using it in uncleaned radiators may lead to undesirable side effects. There should be no residues of solder, oils, paints, or dirt in the cooling system. Please clean your radiator before use.
 

Aquatuning Corrosion protection AntiCorro-Fluid (50 ml, Concentrate)
Coolant for water coolers
Quantity discount
EUR6,49 per piece for 2 units EUR129,80/1l

Aquatuning Corrosion protection AntiCorro-Fluid

50 ml, Concentrate

9. XSPC EC6 Coolant

XSPC is a UK-based manufacturer that is already well-known and popular there. The water cooling specialists are characterized by excellently crafted and innovative products. Only the best materials are chosen, with a strong emphasis on outstanding aesthetics. Despite these high standards, XSPC manages to shine with a truly competitive price, making it a real contender against established brands.

The EC6 is a powerful, environmentally friendly coolant designed for use in water cooling systems. It is based on a blend of refined plant extracts and non-toxic corrosion inhibitors, as well as non-toxic dyes. It offers excellent protection for copper, brass, steel, nickel, and aluminum, and has also been tested with a range of acetal and acrylic plastics.

EC6 has high thermal conductivity, low electrical conductivity, and thanks to a wide range of intensely bright colors, it is the perfect coolant for all water cooling systems. The available 1-liter variant comes in a pure white color and is opaque, making it ideal for subtle builds.

Note: EC6 Coolant is not suitable for mixing with other water additives, except for EC6 ReColour Dye.

Technical details:
- Quantity: 1 liter
- Color: White (opaque)
- Features:
- low electrical conductivity
- non-toxic dyes.
 

10. Mayhems X1 V2 Eco

Mayhems Pre-Mix is an excellent way to add the finishing touch of color to your water cooling system. A wide variety of colors is one of the main reasons to choose Mayhem coolants. The extensive experience this company has gained through its color concentrates is also reflected in the ready-made mixtures. Here, too, mixing different colors is possible to create a fantastic hue. Create your unique color concept with products from Mayhems. 

Product order
See all products