Steam Boiler Treatments

The AQUAGUARD 840’s Series utilizes an innovative formulation of film forming and volatile corrosion inhibitors, pH buffering agents, dispersants and cleaning agents to provide complete protection to the boiler and condensate system.

When the AQUAGUARD 840’s Series is first introduced into the system, it will begin to form a protective monomolecular film while simultaneously cleaning the system, removing existing foulants.  This Series is designed for use in steam boiler systems with high makeup volumes and feed water pretreatment—such as those utilizing demineralized, RO or softened makeup water.


  • Single product solution—fully formulated for complete system control eliminating the need for multiple product treatments.
  • Easy to use, monitor and control.
  • All organic treatment—does not contain molybdenum, nitrite, phosphate or sulphite.
  • Effectively treats the system feed water by buffering to the desired pH range to prevent corrosion.
Here’s What a Guardian Chemicals
Partnership Looks Like
Step 1
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Get in touch

Our experts know your industry and will seek to understand the unique challenges of your business. Let’s talk.

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We come to you

Your systems and processes are interconnected. We’ll arrange a site visit to understand the bigger picture.

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We propose a solution
A solution is more than just a product—it is a complete program that results in lower life cycle operating cost and considers the impact on health, safety and the environment.
Step 4
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We deliver fast
Our service is key to your success. We deliver with industry-leading turnaround times, and effective commissioning and training ensure that your system operates safely and effectively from day one.
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