Cooling coolant Aqua-Computer Double Protect Ultra 5L — corrosion inhibitor and biocide, red

Aqua-Computer Double Protect Ultra 5L is a ready-to-use red cooling fluid formulated for closed-loop liquid cooling systems. Designed to combine corrosion inhibitors with biocidal protection, this coolant reduces the risk of galvanic and general corrosion while inhibiting biological growth and deposits in metal and plastic components. Supplied in a 5-litre volume, the fluid is pre-diluted for direct use in PC cooling loops and industrial closed-loop applications where maintaining heat-transfer efficiency and component longevity is required.

Advantages

The formulation provides combined corrosion inhibition and biocidal protection in a single, ready-to-use product, eliminating the need for additional additives. Its neutral red color enhances visual leak detection and loop inspection without affecting compatibility with common metals and plastics used in cooling circuits. Using a pre-mixed coolant reduces handling and measuring errors and helps maintain consistent thermal performance and reduced deposit formation over time.

Suitable for

• Custom and prebuilt PC liquid cooling loops
• Industrial closed-loop cooling circuits with mixed metal components
• Heat exchangers and cooling jackets that require biocidal protection
• Systems where pre-diluted, maintenance-reducing coolants are preferred

Key specifications

• Appearance: red, ready-to-use liquid
• Volume: 5 litres
• Function: combined corrosion inhibitor and biocide
• Compatibility: suitable for common metals and plastics used in closed-loop cooling systems
• Application type: closed-loop liquid cooling

How to use

Flush the cooling loop with distilled water or a manufacturer-recommended cleaner to remove existing deposits and contaminants before filling. Fill the system with the ready-to-use coolant, ensuring all air is bled from the loop by operating pumps and opening bleed ports where present. Check for leaks, top up to the correct level, and run the system until operating temperature stabilizes; inspect again for entrained air or minor leaks and re-bleed if necessary. Follow manufacturer guidance for maintenance intervals and periodic inspection.

Usage recommendations

Use only in closed-loop systems and avoid mixing with other coolants or additives to prevent chemical interactions. Store the product in a cool, dry place away from direct sunlight and extreme temperatures. Replace coolant according to system usage and inspection results, and follow local regulations for disposal of used coolant containing biocidal agents.