#028 – Cast Iron Waterbox Repair

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Cast Iron Waterbox Repair

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Case History #028 REV.04-97

Main condenser cast iron waterboxes were experiencing corrosion and metal loss in salt water service. Metal loss was severe adjacent to the Muntz Metal tubesheet where dissimilar metals set up a galvanic cell.

A three-step coating system was installed to protect the cast iron substrate from further corrosion and erosion damage.

The ARCOR™ system provides a barrier to protect the substrate from the salt water and acts as an insulator to eliminate the galvanic cell.

Corroded surface inside waterbox.

Abravise-blasted interior.

Top-coat of ARCOR S-30 Blue.

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ARCOR S-30

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