4000090046 - Fronius High-Performance Welding Coolant - 5L (-20C Protection)

Advanced Thermal Management for Welding Systems

The Fronius Cooling Liquid (SKU: 4000090046) represents a critical component in the maintenance and operation of high-performance water-cooled welding systems. Designed specifically for the rigorous demands of industrial MIG/MAG and TIG welding, this 5-liter (1.32 gallon) coolant formulation goes beyond simple heat transfer. It is engineered to address the three primary failure modes of liquid cooling circuits: biological contamination, galvanic corrosion, and freezing.

Modern welding cooling units utilize fine-tolerance pumps and narrow coolant passages within the torch head to maximize heat dissipation. Standard water or automotive coolants often fail in these applications due to high electrical conductivity or the promotion of algae growth. The Fronius formula includes a potent anti-bacterial agent that actively prevents the build-up of biological films and bacteria. This is essential for maintaining consistent flow rates and preventing pump strain over long service intervals. Furthermore, the liquid is chemically balanced to be compatible with the specific mix of materials found in Fronius systems, including brass connections, copper windings, and synthetic seals.

Thermal stability is another cornerstone of this product. It offers reliable frost protection down to -20°C (-4°F), making it suitable for workshops that may experience temperature drops overnight or during transport. While the operational recommendation suggests usage in ambient temperatures up to -10°C, the chemical protection extends lower to prevent catastrophic expansion damage to the cooling unit reservoir and lines. The coolant also contains specialized corrosion inhibitors that coat metal surfaces, significantly prolonging the service life of the entire cooling ecosystem. This is a ready-to-use mixture, ensuring the correct ratio of inhibitors to base fluid is always maintained without the risk of dilution errors.