Nuclear Plant Waterbox Rebuild PROBLEM Case Studies By 1983, at a New England utility, the cast iron waterboxes, were subjected to many years of salt water attack. The corrosion was almost to the failure point, and the waterboxes were leaking at a few points. Replacement of the old waterboxes, even if possible, would take from 1.5 to 2 years to have them fabricated. Welding was not considered as the heat stress might cause cracking and complete failure of the waterboxes and shutdown of the plant. SOLUTION DUROMAR, INC. was contracted to rebuild the surface using our thick film, permeation and abrasion resistant epoxy lining, SAR. After completely removing the thick crust of scale and digging out the graphitized pits, the surface was steamed to remove chlorides, dried and sandblasted to nea

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