Coolant liquid XSPC Pure Coolant 1 L, green UV-reactive, for PC liquid cooling systems

XSPC Pure Coolant 1 L is a premixed coolant formulated for PC liquid cooling systems. Supplied in a green UV-reactive colour, the fluid is intended for use in radiators, water blocks and reservoirs and is compatible with typical desktop water-cooling loops. The ready-to-use premix reduces the need to combine separate concentrates and additives during routine filling and maintenance, while preserving thermal transfer properties required for effective cooling.

Advantages

The product provides a stable, premixed liquid that is ready for immediate use, minimizing preparation time and the risk of incorrect mixing. Its UV-reactive green coloration offers visible illumination in setups with UV lighting, improving visual diagnostics of flow and loop integrity. The formulation is designed to maintain heat transfer performance and resist premature degradation under normal operating conditions.

Suitable for

• Custom PC liquid cooling loops using radiators, CPU/GPU water blocks and reservoirs
• Routine filling and top-up of closed-loop and refillable open-loop systems
• Setups with UV or UV-capable lighting where visible fluid illumination is desired

Key specifications

• Volume: 1 litre premixed coolant
• Colour: green, UV-reactive for visible fluorescence under UV light
• Form: ready-to-use liquid premix (no dilution required)
• Intended components: radiators, water blocks, reservoirs and tubing within PC loops

How to use

Before filling, flush the cooling loop with distilled water or a system cleaner according to the original equipment instructions to remove residues. Fill the loop slowly with the premixed coolant, ensuring air is purged from radiators and blocks by tilting or gently agitating the system while the pump runs at low speed. Monitor fluid level in the reservoir and top up as necessary until the loop is stable and free of air bubbles. Follow normal leak-testing procedures before powering other system components.

Recommendations

Use recommended corrosion inhibitors and follow manufacturer guidance for component compatibility. Perform regular visual inspections for discoloration, particulate formation or biological growth and replace the coolant if any contamination or performance degradation is observed. Avoid mixing different coolant brands or types unless explicitly stated as compatible by the manufacturers.