Water-Based Dry Finish Corrosion Inhibitor - FreiGuard 313 Water-Based Dry Finish Corrosion Inhibitor - FreiGuard 313

Product Type: FreiGuard 313

Water based corrosion inhibitor for indoor storage and transportation.  FreiGuard 313 provides a dry to the touch finish.  A perfect replacement for water emulsifiable oil protectants, FreiGuard 313 provides linger bath life, easier bath cleanout, and a much cleaner work environment.

Success Story


FREIGUARD 313 is a very low foaming, water based corrosion inhibitor concentrate used for indoor storage and in-transit corrosion prevention on carbon steel and other metals.
FREIGUARD 313 is non-staining and leaves no sticky residue. It dries to the touch in a few hours. 3 months of indoor corrosion protection is typical and may be extended by using higher concentrations of FREIGUARD 313.

• pH neat                                       9.1
• Specific Gravity                        1.08
• Solvent System                         Water
• Color                                            yellow
• Process Temperature              Ambient – 140°F
• Process time                             15 to 30 seconds

• Shelf life                                     One year under original seal

• Storage considerations          *** Keep from Freezing***

• Spray or immersion stage
• Spray wand
• 1 to 10% by volume in water
• In house atmospheric corrosion protection
• In transit corrosion protection

Fill the bath ¾ full with water add the appropriate amount of FREIGUARD 313 for your application. Fill to final working volume and mix. Heat the solution to operating temperature.

The concentration of FREIGUARD 313 may be measured using an Optical Refractometer. Entrained air will create false results. Allow the bath sample to cool and degas before adding sample droplets to the main prism. To calculate the concentration of FREIGUARD 313:

%V/V FREIGUARD 313 = % Brix X 2.4

Processing parameters can vary from application to application. FREIGUARD 313 is easily cleaned using Freiclean alkaline cleaners. Your Freiborne Sales and Service Representative will assist you in determining the best processing criteria for your application.

Additional Information

Temp Range

Ambient – 140


Carbon Steel, Galvanized Steel, Stainless Steel, Aluminum



Product Type


Product Line



Spray or Immersion

Ordering Information

To place an order, please contact our knowledgeable and professional customer service team:

If you are unable to find what you need or require a custom formula, please call and speak with one of our knowledgeable Formula Engineers. They can walk you through the ordering process quickly and professionally.