Coolant EKWB 3831109813256 — transparent coolant compatible with EK‑DuraClear and EK‑ZMT

The EK-CryoFuel transparent coolant is a ready-to-use fluid for custom PC liquid cooling loops, compatible with EK‑DuraClear and EK‑ZMT tubing. It is formulated to provide stable thermal performance while maintaining clarity and low viscosity, helping ensure unobstructed flow through water blocks and other loop components. The coolant includes corrosion, scale and biological inhibitors and has been tested against relevant standards for common cooling metals. EK-CryoFuel is biodegradable and offers a two-year shelf life from the date of bottling.

Advantages

EK-CryoFuel is chemically stable and formulated to minimise sediment formation, reducing the risk of clogging and component damage. Its low viscosity supports reliable circulation in custom loops, and synergistic corrosion inhibitors protect metals such as copper, brass, aluminium and stainless steel. The formula also contains scale and biological inhibitors to help maintain thermal efficiency and long operational life. The product is biodegradable and non-toxic, with a specified two-year shelf life.

Suitable for

• Custom PC liquid cooling loops using EK‑DuraClear or EK‑ZMT tubing
• Cooling systems involving CPU and GPU water blocks
• Builds where transparency and color stability are required
• Setups that require corrosion and biological protection for mixed-metal loops

Key specifications

• Type: ready-to-use coolant for PC liquid cooling
• Colour: transparent
• Low viscosity to reduce risk of blockages and improve flow
• Contains corrosion inhibitors tested for copper, brass, aluminium and stainless steel
• Includes scale and biological inhibitors to prevent fouling
• Biodegradability: approximately 90% within 10 days
• Shelf life: 2 years from bottling

How to use

Fill the cooling loop following the motherboard and component manufacturers' guidelines and the loop assembly instructions. EK recommends using the dedicated filling bottle to simplify the filling process and reduce spills. Ensure the loop is properly flushed and dried before filling, then introduce EK-CryoFuel slowly while running the pump at low speed to remove trapped air. After filling, run the system and check for leaks, topping up fluid as necessary to maintain proper level and circulation.

Usage recommendations

Use EK-CryoFuel with compatible EK tubing (EK‑DuraClear or EK‑ZMT) and confirm materials in the loop are suitable for the product. Periodically inspect the loop for signs of contamination or reduced flow and follow standard maintenance procedures to prolong component life.