Cooling Water Treatment

Guardian Chemicals open recirculating cooling water treatment programs are designed to promote water conservation by maximizing cycles of concentration to ensure efficient and cost effective operation while minimizing maintenance and chemical use.

AQUAGUARD 508 is an innovative treatment focused on protecting your equipment, reducing water consumption and ultimately reducing your operating and maintenance costs.

AQUAGUARD 508 is specially formulated to prevent the corrosion of steel, galvanized metals, yellow metals such as copper or brass and their alloys while also effectively controlling scale by dispersing any suspended solids and preventing deposition.

AQUAGUARD 508 features a unique tracer technology which allows for remote monitoring of your cooling programs with our optional control systems.With this, you can better track, trend and log your chemical and water usage while reducing operator testing and time requirements. The end result: increased accuracy for better control, improved results and overall cost savings! 


  • Convenient to use and control – reducing operator time to maintain the system. Dosage rates are easily tested with a handheld or in-line tester. Optional remote monitoring available.
  • Increased cycles and reduced chemical and water usage reduces your overall operating costs.
  • Advanced scale inhibition package designed for the toughest water conditions. Exhibits superior calcium carbonate deposit control allowing for several cycles of concentration even with the hardest waters.
  • Innovative dispersants designed for high stress conditions to improve heat transfer in condensers and related heat exchange equipment by minimizing scale buildup.
  • Corrosion inhibitors for both ferrous and non-ferrous system components including copper.
  • Highly concentrated resulting in economical cost effective dilutions. Effective at low dosages.


AQUAGUARD 508 is specially formulated to handle the chemical requirements of open recirculating cooling systems.


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