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FlexGuard™

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Why FlexGuard How It Works

All-Organic Closed Loop Corrosion Inhibitor

FlexGuard™ all-organic closed loop corrosion inhibitor is a proprietary technology designed specifically for treating chilled and hot water closed loops.

Manufactured without molybdenum, nitrite, nitrate, silica, or phosphate, FlexGuard inhibits chilled and hot water closed loops more effectively than industry-standard molybdenum- and nitrite-based programs.

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FlexGuard-Closed-Loop-Corrosion-Inhibitor

Why Choose FlexGuard?

FlexGuard offers many benefits over traditional closed loop inhibitors:

  • Enhanced corrosion control for aluminum, mild steel, and copper metallurgy, as well as in mixed-metallurgy systems.
  • Improved treatment for layup and hydrostatic passivation at a lower dosage.
  • Less added conductivity to further improve corrosion rates.
  • Better corrosion performance in heated hot water loops and diesel engine jacket applications.
  • No molybdenum, nitrite, nitrate, silica, or phosphate components to support your facility’s environmental initiatives.
  • PTSA fluorescent tracing to monitor product residual and adjust feed to help manage treatment costs.

How FlexGuard Works

Field trials and laboratory tests have shown FlexGuard’s excellent performance.

Corrosion coupons before and after a 90-day FlexGuard trial at a customer site:

Coupon Type

Before

 After

Aluminum

>6 mpy corrosion rate

1 mpy corrosion rate

Mild Steel

1.0 mpy corrosion rate

0.1 mpy corrosion rate

Copper

0.1 mpy corrosion rate

<0.1 mpy corrosion rate

Read the Case Study

Mild steel corrosion coupons after eight weeks of exposure to stagnant layup conditions in lab jar test:
No treatment
>5 mpy corrosion		 5,000 ppm traditional treatment
0.03 mpy corrosion
Clouding caused by microbial growth		 3,000 ppm FlexGuard
<0.01 mpy corrosion

Not only did FlexGuard inhibit corrosion more effectively than the nitrite- and molybdate-based treatment at a lower dosage, but it also did not produce microbiological growth.

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