Best selling Coolant for water coolers

Here's a ranking of the best products in this category. To give you a quick overview, we've also added some key information about the products.

1. 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. 

2. Alphacool Ice water Crystal Blue UV

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.

Permanently applicable
Very good thermal conductivity
Very low electrical conductivity
Compatible with most plastics such as PVC, NBR, Acetal, Plexi and Nylon
Compatible with most metals such as copper, silver, nickel and brass
No dangerous goods (not subject to labelling according to CLP Regulation)

Due to the intensity of the colors, clothing or other materials that come into contact with the color may discolor. Please be careful not to spill anything during use. 

3. EKWB EK-CryoFuel Solid Premix - Cloud White

The EK-CryoFuel Solid from EK Water Blocks has been designed to provide enthusiasts and gamers with the best performance and efficiency while maintaining colour stability for up to two years. In comparison to semitransparent coolants, this Solid series offers special color stability. The colour particles do not settle, so the fresh colouring is retained for a long time. The CryoFuel coolant is not only durable, but also very environmentally friendly: in ten days the coolant can be biodegraded to 90 percent.

All the more astonishing and pleasing as the EK-CryoFuel is also mixed with substances against biological growth within the water cooling circuit as well as anti-corrosion agents and thus offers protection against the two deadly enemies of watercooling for many months: biological residues and rust. However, these advantages should not overlook the high cooling efficiency.

In addition, EK Water Blocks' EK-CryoFuel offers comprehensive compatibility with virtually all metals, rubber types and plastics commonly used in water cooling applications. The bottle offered here contains 1,000 ml of ready-to-use coolant. The colour of the EKWB EK-CryoFuel Solid in a 1,000 ml bottle is white, EK Water Blocks calls the colour itself "Cloud White". Whether for Wakü enthusiasts or passionate PC modders, the EKWB EK-CryoFuel is a very good choice in terms of environment and performance. 

4. Alphacool Ultra Pure Water

Purified by five special filters, including a reverse osmosis filter, the water is completely free of salts, metals, and germs, which are commonly found in tap water. The purification process eliminates chlorine, odors, heavy metals such as lead, copper, cadmium, and mercury, as well as agricultural chemicals, hormones, antibiotics, pesticides, fungicides, herbicides, drug residues, carcinogenic organic chlorine compounds, radioactive substances, asbestos fibers, tar compounds, nitrites, nitrates, bacteria, viruses, fungal spores, and cysts.

As a result, the water leaves no residue during evaporation and does not form limescale deposits. Additionally, due to its low pH value of 6.0 to 7.0, Ultra Pure Water can even absorb deposits (up to a certain amount), ensuring that the cooling system remains permanently clean. 

5. Aqua Computer Double Protect Ultra

The manufacturer does not compromise on coolant fluids either, ensuring reliable corrosion protection for long-term stable operation with high reliability. This prevents the accumulation of metal in the fluid and, in turn, the thinning of metal components (copper, aluminum, etc.) in the water circuit. 

6. Corsair Hydro X Series XL5

Corsair Hydro X Series XL5 Performance Coolant brings your custom cooling system's color scheme to life and is available in a wide range of vibrant, translucent colors. The pre-mixed and ready-to-use XL5 Performance Coolant contains corrosion and antibacterial inhibitors that keep your cooling system clean and cool. It is designed to protect fittings and blocks made of copper, brass, and nickel while adding vibrant colors and cool temperatures to your cooling system. 

7. Corsair Hydro X Series XL5 Performance Coolant

Corsair Hydro X Series XL5 Performance Coolant brings your custom cooling system’s color scheme to life, available in a wide choice of vibrant translucent colors. Premixed and ready to use right out of the bottle, XL5 Performance Coolant includes anti-corrosion and anti-bacterial inhibitors that keep your custom cooling system running clean and cool. Formulated to protect copper, brass, and nickel fittings and blocks, XL5 Performance Coolant brings vivid color and cool temperatures to your custom cooling system. 

8. XSPC EC6 Coolant

XSPC is a UK-based manufacturer that is already well-known and popular there. The water cooling specialists are distinguished by their excellently crafted and innovative products. Only the best materials are chosen, with a strong emphasis on outstanding aesthetics. Despite these high standards, XSPC can 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 provides excellent protection for copper, brass, steel, nickel, aluminum, and has also been tested with a range of acetal and acrylic plastics.

EC6 features 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 setups. The available 1-liter version 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. 

9. Mayhems Pre-Mix X1

Note: Since this concentrate contains dyes, it cannot be ruled out that it may discolor clothing or other fabrics upon contact. We would also like to point out that dyes may fade over time, which can result in a decrease in color intensity. 

10. XSPC EC6 ReColour Dye - UV Orange

XSPC is a UK-based manufacturer of cooling solutions for high-performance PCs. The water cooling specialists are known for their well-crafted and innovative products. Only high-quality materials are used, with a strong emphasis on stylish aesthetics. Despite these high standards, XSPC offers a truly good price-performance ratio.

The EC6 ReColour Dye is a concentrated dye for use in water cooling systems. 30 milliliters of this color additive is enough to provide a vibrant and long-lasting color to up to 5 liters of coolant. It offers excellent protection for copper, brass, steel, nickel, and aluminum, and has also been tested with a range of acetal and acrylic plastics. It is non-toxic and is preferably mixed with transparent or opaque XSPC EC6, ECX, and Ultra Pure Water coolants in white and clear variants.

The color Orange is additionally UV-active. It reacts under appropriate lighting (black light) with a fluorescent glow, making it excellent for eye-catching builds. Furthermore, all EC6 ReColour color additives can be mixed together to create custom color blends or to enhance UV activity when using two UV-active variants.

Technical details:
- Volume: 30 ml
- Color: Orange (UV-active)
- Mixing ratio: 6 ml per liter of coolant
- Features: non-toxic dyes. 

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