CoolFlow IGE Physical Properties


1.08 -1.2 g/cm³ depending on inhibitors


7.5 - 10.5 depending on inhibitors

Boiling Point:



a clear, slightly viscous liquid. It is mildly sweet to the taste and has a non-pungent but characteristic aroma

Available in:

5, 10, 15, 20, 25, 205 & 1000 litre containers and bulk tankers.


For a quote or assistance

Tel: (021) 385 0908

Industrial Grade Secondary Refrigerant Antifreeze, based on Ethylene Glycol and BS6580 & ASTM D1384 proven Corrosion, Scale and Biological Inhibitors.

CoolFlow IGE has been especially formulated from Ethylene Glycol for use as an Industrial Grade Secondary Refrigerant Antifreeze for use in Process Cooling, Refrigeration and Air Conditioning systems, where toxicity is not an issue.

Antifreeze AntiFreeze

CoolFlow IGE is miscible with water in all proportions and can protect RAC systems down to -50°C depending on concentration. CoolFlow IGE exhibits super-cooling characteristics and mixtures containing in excess of 55% by volume do not freeze solid, alleviating any concern over possible expansion and burst damage.

Optimum Flow Optimum Flow

CoolFlow IGE has improved heat transfer characteristics, including; lower Dynamic Viscosity and higher Thermal Conductivity. For detailed comparison please refer to the Fluid Performance Chart - available upon request.

Corrosion control Corrosion Control

CoolFlow IGE contains synergistic corrosion inhibitors to protect metals commonly found in such systems. It has been tested in accordance with BS5117 and found to meet BS6580 and ASTM D1384 corrosion standards.

CoolFlow IGE also contains scale and biological inhibitors to help prevent fouling – thus promoting long operational life and high thermal efficiency.

Biodegradable Biodegradable

CoolFlow IGE mixtures are readily biodegradable (90% over ten days) and will not remain in the environment or bio-accumulate.

Quality Assured Quality Assured

All Hydratech products are manufactured in accordance with certified ISO9001-2008 procedures


As per BSRIA guide BG 29/2012 all pipe-work systems should be clean and free from biological contamination and debris prior to commissioning.

To minimise corrosion air ingress a should be minimized. A pressurised system is best.

Determine the total system volume and add CoolFlow IGE to the system according to the minimum operating temperature required (see table). The minimum dose of CoolFlow IGE should not be less than 25% of the system volume and the maximum does not normally exceed 60%. We recommend the use of deionised, distilled or UltraPure™ water for this dilution. Avoid water containing high levels of calcium salts or Chlorides [Cl-].

Health & Safety: Please refer to the associated Safety Data Sheet. Available via Login or upon request.

Shelf Life: >3 years when stored in sealed containers out of direct sunlight.

Available in: 5, 10, 15, 20, 25, 205 & 1000 litre containers and bulk tankers.

CoolFlow IGE can also be supplied as a Ready-To-Use solution.

Mixing Guide

Frost Protection °C v/v of CoolFlow IGE Refractive Index
-10 20% 1.349
-15 27% 1.355
-20 32% 1.359
-25 37% 1.363
-30 41% 1.366
-35 45% 1.369

When measuring the percentage of CoolFlow IGE in the system use a refractometer

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