OMTech 1 gal Non-Conductive CO2 Laser Coolant — Prediluted, Low Conductivity & Freeze Protection

OMTech 1 gallon non-conductive CO2 laser coolant is a ready-to-use, prediluted heat-transfer fluid formulated to protect CO2 laser tubes from freezing, corrosion, and thermal stress while maintaining very low electrical conductivity.

Designed for CO2 laser cutters and engravers, this premixed ethylene glycol-based coolant combines corrosion inhibitors, a bittering agent, and low ionic content so you can fill your chiller or reservoir and return to work immediately. It’s engineered to move heat efficiently, reduce oxidation and sediment, and resist freeze damage down to very low temperatures—without the extra mixing or conductivity concerns that come with many aftermarket fluids.

How will this coolant protect my CO2 laser tube?

The formulation slows corrosion and keeps solids and oxidation from building up inside the tube and cooling channels, which helps maintain stable cooling efficiency over time. Its low electrical conductivity reduces the risk of stray currents that could affect high-voltage laser components.

• Corrosion inhibitors protect metal and rubber cooling passages.
• Low conductivity (~10 µS/cm) minimizes electrical leakage risk.
• Bittering agent discourages accidental ingestion and tampering.
• Prediluted for immediate use—no on-site mixing required.

Will this coolant work with my existing chiller or water tank?

Yes—this coolant is formulated for broad compatibility with CO2 laser water chillers and reservoirs. It is intended to be used in dedicated laser cooling systems; avoid mixing with unrelated antifreeze or other coolant brands to prevent unwanted reactions or changes in performance.

• Universal compatibility with CO2 laser chillers and tanks.
• Do not mix with automotive antifreeze or different coolant chemistries.
• Ideal for replacing distilled or deionized water in sealed systems.
• Instructions recommend flushing system with distilled/deionized water first.

How does temperature resistance and thermal transfer perform?

This laser coolant is engineered to remove excess heat quickly while resisting freeze damage down to extreme subzero temperatures, helping prevent tube cracking in cold environments. It maintains low viscosity suitable for pump circulation, so heat exchange stays efficient without stressing the cooling circuit.

• Effective heat removal for consistent operating temperatures.
• Freeze protection rated to very low temperatures to prevent bursts.
• Balanced viscosity for dependable pump performance and flow.
• Helps extend operational runtime by reducing thermal cycling stress.

Who is this for? This OMTech prediluted CO2 laser coolant is aimed at makers, small shops, and industrial users who run CO2 laser cutters or engravers and want a turn-key cooling fluid that minimizes maintenance and electrical risk. It’s a good choice for anyone replacing plain water in a closed cooling loop, operators in cold climates concerned about freeze damage, and users seeking low-conductivity protection without mixing concentrates.

Usage tips: Flush your cooling loop with distilled or deionized water before filling to remove debris. Keep the coolant sealed until use to maintain warranty conditions, and avoid cross-mixing with other antifreeze chemistries. OMTech provides U.S.-based shipping and customer support, plus a limited support period for sealed product to help with installation questions.