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Feser One F1 Cooling Fluid - UV Acid Green - 1 Liter

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Product Details:

Smoothy Wagons GmbH releases new Non Conductive coolants for water cooling systems, brand name Feser One or F1 for short. The liquids mark themselves not only by the new variety of UV reactive colors but also through the new corrosion protection, which better protects metals like Copper, Aluminum , Brass and Nickel.

The 1 liter ready to use coolant can be filled directly into the cooling system reservoir or fill port. This is an all in one solution with 4 Anti Corrosive additives, Non conductive formula and UV Reactive. This is the only coolant to buy.

Feser One is the only coolant you will ever need! Perfecting the way you cool your system, safely and paving the way to the future. 

UV reactive

And it glows ...

By the addition of different coloring materials, Feser is able to add appropriate color to the coolant. With addition of UV active materials, so-called artificial tracers, the liquid begins to glow when ultraviolet light hits the material in the liquid. For theses effects you only need a CCFL / UV Cold Cathode light tube.

Corrosion protection

For longer life of your system ...

Our priority for the liquid is to improve corrosion protection. Different manufacturers of liquid cooling systems use different metals in their systems. To protect all these kinds of metals we developed a cooling agent, which protects the metals COPPER, ALUMINUM, BRASS and NICKEL.

The characteristic here is with the inhibitors, which prevents corrosion of all metal parts in the cooling circuit at the same time. With this feature, Feser One is compatible with each system.


  • Corrosion protection for Copper, Aluminum, Brass and Nickel
  • Prevents Algae growth in your cooling system
  • Dropper Cap, No funnel required
  • Ready for use, No mixing required
  • Available in 6 UV Reactive colors
  • Totally Odorless
  • Environmentally Safe
  • Compatible with all available PC liquid-cooling systems


  • Conductivity less than 10µS/cm (20°C)
  • Unopened shelf life of 3 years maximum

The Test!


Do not mix this coolant with any other aftermarket additives, this may compromise the non conductive formula. Do not mix colors in this coolant, if any extra UV additive needs to be added use Feser One or Feser View to keep conductivity levels down. If used for long periods of time the UV properties of this coolant will naturally fade, you can use Feser View UV Dye to fix this. Do not mix different color. Feser One coolants together, chemical reactions can occur if Feser One coolants are mixed together. No other additives are needed, we have 4 anti corrosives inside! Regular water changes are advised (maximum 1 year). Depending on your hose size, type and wall thickness, Feser One may react differently under uv light in different cooling systems. We have tested this product as replacement coolant in every leading manufacturers watercooling system with great results!

While Feser and other companies may state a coolant to be non-conductive, we recommend that you treat any water-based liquid in your PC as having the ability to conduct electricity. Take the necessary precautions and safeguards to ensure a leak-free operation.

Manufactured by: The Feser Company


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This product was added to our catalog on Friday 29 February, 2008.
For more information, please visit this product's webpage.
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