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Accelerated Salt Fog Corrosion Test (ASTM B-117) Exhibits Excellent Results, UltrawearPlus® coatings vs. Asphalt Dip and Un-coated Cast Iron Truncated Dome Samples:

 

EJ (formerly East Jordan Iron Works) a world leader in cast iron components, provided eight sample Truncated Domes to Heat Treat Info, Inc. for processing. Seven of the samples were “green” un-coated, one of the samples was (asphalt dip coated) the current EJ standard coating.

The seven “green” samples were then processed. One of each sample received one of the following coatings Ultrawear®, UltrawearPlus®, Ultrawear® Green, Red, Yellow and Black, the seventh sample was left un-coated.

The eight samples were placed into a certified Salt Fog Test Chamber. An accelerated corrosion test per the (ASTM B-117) standard was begun. The Test was conducted by an independent A2LA accredited laboratory.

Per the standard the samples were heated to 95°F inside the cabinet and exposed to a 5% sodium solution “Salt Fog”. The test chamber is opened every 24 hours and the samples are inspected and photographed (see attached). The test samples are considered a failure when more than 10% of the significant surface area is covered by either “White” or “Red” corrosion. All eight samples were tested for the same period of time 168 hours.

 Completed Salt Fog Test Results:

Un-Coated                                         Failed @ 24 hours 50% Red Rust

Asphalt-Coated                                  Failed @ 24 hours 30% Red Rust

Ultrawear®                                       Failed @ 96 hours 13% Red Rust

Ultrawear® Yellow                            Failed @ 96 hours 15% Red Rust

Ultrawear® Green and Black               Failed @ 120 hours 11% Red Rust

Ultrawear® Red                                Failed @ 144 hours 11% Red Rust

 

Ultrawear Plus®                           Passed @ 168 hours 1% Red Rust

  
24 Hours 96 Hours 168 Hours

Conclusion:

The UltrawearPlus® coatings and Ultrawear® processed samples exhibited excellent corrosion resistance vs. both the Asphalt-coated (EJIW standard coating) and Un-coated test samples.

UltrawearPlus® and Ultrawear® are diffusion heat hreating and coating processes that exhibit both excellent wear and corrosion resistance. Because they are not surface coatings I.E. Powder-Coating, E-Coating or Plating, they are much more durable. The surface hardness of both UltrawearPlus® and Ultrawear® on cast iron is Rockwell HRC 58/60 and is diffused into the cast iron thus becoming part of the cast iron substrate.

 The Real Coating Option:

Ultrawear Plus® and Ultrawear® are truly affordable, durable options to traditional paint or plating. These two patented processes can now be specified on your cast iron streetscape products. Contact your EJ sales representative today for more information.

For technological information contact:

 Patrick L. Fox

 248-762-5553

or

pfox@heattreatinfo.com

 

   

 


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Last modified: 08/11/16