CoolFlow LVF Physical Properties


1.2 - 1.4 g/cm³


8.0 - 9.5 depending on inhibitors

Boiling Point:



a clear, low viscosity liquid. It is salty 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

Very Low Viscosity, Non-Toxic Secondary Refrigerant Antifreeze. Based on Potassium Formate and BS6580 & ASTM D1384 proven Corrosion, Scale and Biological Inhibitors.

CoolFlow LVF has been especially formulated from Potassium Formate for use as a Non-Toxic Secondary Refrigerant Antifreeze in Process Cooling, Refrigeration and Air Conditioning systems. It has much improved thermal efficiency in comparison with glycol based solutions.

Antifreeze AntiFreeze

CoolFlow LVF is supplied Ready-To-Use, premixed with the necessary weight of UltraPure™ water to achieve the desired freeze protection.

non toxic Non-Toxic

CoolFlow LVF has an LD50 toxicity rating (Oral Rat) of ≥15,000 mg/kg of body weight (bw) = “Relatively Harmless”. As confirmed by the Hodge & Sterner Scale.

Optimum Flow Optimum Flow

CoolFlow LVF has improved heat transfer characteristics. Including lower Dynamic Viscosity and higher Specific Heat. For detailed comparison please refer to the Fluid Performance Chart - available upon request.

Corrosion control Corrosion Control

CoolFlow LVF 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 for mild & stainless steel, aluminium, copper, brass and cast iron.

Zinc or galvanised components are not recommended for use with closed loop cooling or heating systems.

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

Biodegradable Biodegradable

CoolFlow LVF 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 should be minimized. A pressurised system is best.

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 LVF is supplied as a Ready-To-Use Secondary Refrigerant Antifreeze, as per the table.

Mixing Guide

CoolFlow LVF
Frost Protection °C Dynamic Viscosity MPas (cP) Thermal Conductivity (W/mK) Refractive Index
LVF20 -20 1.8 0.56 1.3650
LVF30 -30 1.9 0.53 1.3735
LVF40 -40 2.2 0.52 1.3800
LVF50 -50 2.6 0.50 1.3865
LVF60 -60 2.9 0.48 1.3915

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

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