Flash Rust Inhibitor

You’ve just finished preparing various metallic components for paint and then you notice it—flash rust.

FLASHGUARD is the one step surface preparation solution to eliminate contamination, salt and chloride residues and prevent flash rust.  FLASHGUARD will effectively clean and degrease the surface and remove salt and chloride residues leaving the surface clean and ready for paint.  Ideally suited for use on aluminum, carbon steel, cast iron, galvanized and stainless steel surfaces, fiberglass and concrete.


  • Effectively removes surface contaminants including oils and greases, salts and chlorides.
  • One step surface preparation solution—simple to use and apply.
  • Residue free.  Your surface is clean and ready to prime.
  • Will not negatively impact the adhesion of coatings.
  • When used as directed, prevents flash rust for a period of 72 hours or more.
  • Readily biodegradable.
  • Phosphate free.
  • Concentrated for cost effective dilutions.
Here’s What a Guardian Chemicals
Partnership Looks Like
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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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