043810 - Miller 043810 Low-Conductivity TIG/MIG Coolant - 1 Gallon

Protect Your Equipment with Genuine Miller Coolant

Your water-cooled TIG torch or MIG gun is a significant investment, and the fluid running through it is its lifeblood. Using the wrong coolant—like tap water or automotive antifreeze—can lead to expensive repairs, clogged pumps, and fried torches. Miller Low-Conductivity Antifreeze/Coolant (043810) is the factory-recommended solution for Miller Coolmate systems and other major brands of water coolers. It comes pre-mixed and ready to pour, taking the guesswork out of protecting your gear.

Why Not Use Automotive Antifreeze?

It is a common misconception that car antifreeze is suitable for welders. Automotive coolants often contain stop-leak additives and conductive salts designed for cast iron engines, not delicate welding electronics. These conductive elements can interfere with the High-Frequency start on your TIG machine, causing the arc to sputter or fail to start entirely. Miller's formula is "Low-Conductivity," meaning it doesn't carry electricity, keeping your arc stable and your internal components safe from electrolysis and corrosion.

Year-Round Protection

Whether you are welding in the heat of summer or storing your machine in a freezing garage during winter, this coolant has you covered. It protects against freezing down to -37°F, so you don't have to worry about cracked pumps or burst hoses when the temperature drops. On the flip side, it handles heat up to 227°F, ensuring your torch stays cool even when you are pushing the duty cycle to the limit. Plus, with built-in algae defense, you won't open your tank to find a green swamp clogging your lines. Keep your system running smooth, clean, and cool with the fluid designed by the people who built your welder.