Thermal Fluids

System Maintenance

Heat Transfer Fluid Inhibitors

Over time, the corrosion inhibitors in heat transfer fluids may become depleted. Heat Transfer Inhibitors can be added to restore anti-corrosion properties. To ensure proper protection for your system and to maintain balance of the patented inhibitor package, Dow offers the following inhibitor packages globally: Heat Transfer Fluid Iron Inhibitor, Heat Transfer Fluid Copper Inhibitor and Heat Transfer Fluid pH Booster.

To find out if your corrosion inhibitors are depleted, see Annual Fluid Analysis or contact Dow for availability.

Cleaning & Preparing

Whether new or old, heat transfer systems that utilize water or water-containing fluids as coolants are likely to accumulate rust, mineral scales and oily contaminants during construction and operation. These scales and contaminants can drastically reduce the heat transfer efficiency of the system. Dow provides a unique three part cleaning system for new and old systems. NORKOOL™ Cleaner and NORKOOL Degreaser have been developed to optimize cleaning and are easy to use. Followed by the use of NORKOOL Inhibitor 244, a surface modifier that passivates the cleaned metal surfaces to prevent flash rusting, this three part system ensures that the newly installed thermal fluid, such as NORKOOL Coolant does not get depleted.

MPW Industrial Services, headquartered in Hebron, Ohio, is an authorized reseller of NORKOOL Cleaner, Degreaser and Inhibitor 244. Dow has partnered with MPW in the United States to clean glycol cooling loops, especially natural gas transmission applications because the process using NORKOOL fluids extends engine life and improves the system's cooling efficiency.

Product	Geographic Availability	Applications	Product Description
NORKOOL Cleaner (529KB PDF)	North America Latin America Asia-Pacific	System Maintenance	Removes foulants (corrosion scales, water-derived mineral deposits) and scales (atmospheric and non-aqueous corrosion)
NORKOOL Degreaser (529KB PDF)	North America Latin America Asia-Pacific	System Maintenance	Removes corrosion such as rust, lime and other mineral scales.
NORKOOL Inhibitor 244 (529KB PDF)	North America Latin America Asia-Pacific	System Maintenance	Surface modifier, prevents flash rusting
HTF Iron Inhibitor	Europe North America Latin America Asia-Pacific India, Middle East & Africa	System Maintenance	Maintain balance of the patented inhibitor package.
HTF Copper Inhibitor	Europe North America Latin America Asia-Pacific India, Middle East & Africa	System Maintenance	Maintain balance of the patented inhibitor package.
HTF pH Booster	Europe North America Latin America Asia-Pacific India, Middle East & Africa	System Maintenance	Maintain balance of the patented inhibitor package.