0560950312 - ESAB 50/50 Ethylene Glycol Plasma Coolant, 1 Gallon Jug

Technical Overview of ESAB Plasma Torch Coolant

The ESAB 0560950312 Plasma Torch Coolant is a specialized heat transfer fluid designed specifically for the rigorous demands of water-cooled plasma cutting and welding systems. This product is supplied in a 1-gallon container and features a precise 50% solution of ethylene glycol mixed with deionized water. The chemical composition is engineered to provide a broad operating temperature range, ensuring system stability in extreme environments. With a specific gravity of 1.07, this fluid maintains optimal viscosity for circulation pumps used in industrial plasma power sources.

One of the critical technical specifications of this coolant is its thermal properties. It offers a freezing point of -38 degrees Celsius (-36.4 degrees Fahrenheit), making it an essential consumable for facilities located in colder climates or for equipment stored in unheated warehouses. Conversely, the boiling point is elevated to 109 degrees Celsius (228 degrees Fahrenheit). This elevated boiling threshold is vital for high-amperage plasma applications where the torch head generates significant localized heat; it prevents the coolant from phase-changing into gas (vapor lock), which would otherwise lead to catastrophic torch failure.

The inclusion of deionized water is a key differentiator from standard automotive coolants or tap water mixtures. Deionized water has had mineral ions removed, significantly reducing the electrical conductivity of the fluid—a critical factor in high-voltage plasma arc initiation and stability. Furthermore, the absence of minerals such as calcium and magnesium prevents the formation of scale and deposits within the fine cooling passages of the torch and leads. Scale buildup restricts flow, reduces heat transfer efficiency, and shortens the lifespan of the torch and pump.

This colorless liquid emits a slight organic odor, characteristic of ethylene glycol, aiding in leak detection. It is chemically stable and compatible with the elastomers, seals, and metals typically found in ESAB and other major brand plasma cooling circuits. Users should verify compatibility with their specific system manuals, but generally, a 50/50 ethylene glycol mix is the industry standard for heavy-duty plasma cooling.