Why Hydratech recommend inhibited Propylene Glycol for closed-loop cooling and heating systems.

Plain or uninhibited Propylene Glycol provides antifreeze protection only – the lack of inhibitors and additives leaves systems open to corrosion and other issues. The lower initial price for uninhibited Propylene Glycol can be attributed mostly to the fact that the fluid does not contain an inhibitor package, buffers or additives required for a mixed metal system.

Uninhibited Propylene Glycol solutions can be particularly corrosive over time, potentially over 4 times more harmful to a closed-loop system than standard mains water. Inhibitors, buffers and additives neutralise the natural tendency of Propylene Glycol to become acidic and should be used to prevent corrosion, scale and fouling of pipe-work systems and associated components.

To help prevent, unplanned maintenance, high remediation fees and reduced system life, Hydratech’s range of inhibited antifreezes are formulated with high-performance corrosion, scale and biological inhibitors, which exceed ASTM & BS standards.

Non Toxic Antifreeze and Secondary Refrigerant based on Propylene Glycol and ASTM D1384 proven Corrosion, Scale and Biological Inhibitors.

Non-toxic heat transfer fluid with antifreeze function, based on propylene glycol and ASTM D1384 proven corrosion, scale and biological inhibitors.

Ready-To-Use Non Toxic Extreme Temperature Rated Solar Heat Transfer Fluid with Antifreeze. Based on Propylene Glycol and Reversibly Evaporable Inhibitors to prevent corrosion, scaling and biological fouling.

Non Toxic Extreme Temperature Rated Solar Heat Transfer Fluid with Antifreeze Function. Based on Propylene Glycol and Reversibly Evaporable Inhibitors to prevent corrosion, scaling and biological fouling.

Non Toxic Heat Transfer Fluid with Antifreeze Function. Based on Propylene Glycol and ASTM D1384 High Temperature Corrosion Inhibitors for Biomass Heating Systems.

Non Toxic Heat Transfer Fluid with Antifreeze for use in Hot Water Heating Systems. Based on Propylene Glycol and ASTM D1384 High Temperature Rated Corrosion, Scale & Biological Inhibitors.