ZI-CHEM 2990 is a multi-component corrosion inhibitor designed for open evaporative cooling systems
where strong corrosion control is required and a stabilized phosphate treatment program is selected.
ZI-CHEM 2990 includes a combination of polyphosphate, orthophosphates and azole for corrosion control
supported by oxidant-stable phosphonates for control of scale deposition. For many conditions, it is
recommended that ZI-CHEM 2990 should be supported by separate ZI-CHEM scale inhibitor products.
Some of the key advantages and benefits of ZI-CHEM 2990 include