Accelerated Salt Fog Corrosion Test (ASTM B-117) Exhibits Excellent Results, UltrawearPlus® coatings vs. Asphalt Dip and Un-coated Cast Iron Truncated Dome Samples:
Accelerated Salt Fog Corrosion Test (ASTM B-117) Exhibits Excellent Results, UltrawearPlus® coatings vs. Asphalt Dip and Un-coated Cast Iron Truncated Dome Samples:
East Jordan Iron Works a world leader in cast iron components, provided eight sample Truncated Domes to The Woodworth Group, Inc. Seven of the samples were “green” un-coated, one of the samples was (asphalt dip coated) the current EJIW standard coating.
The seven “green” samples were then processed by The Woodworth Group. 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
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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 Treating 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 EJIW sales representative today for more information. For technological information contact The Woodworth Group on the web at www.woodworthheattreating.com or by phone at 313-891-1440.
Automotive Applications UltrawearPlus®
Constuction Casting Applications UltrawearPlus®
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