CARBON STEEL END CONNECTION CREVICE CORROSION
A 50mm long circumferential crevice corrosion has caused a through wall defect from a flanged joint. The extension corrosion is due to constant moisture droplets from the cooling tower above. The pipe wall loss was more than 70% and there is a through wall gap of more than 10mm.
Firstly, the pipe surface was cleaned and roughened. Next, the through wall defect was rebuild with SS106 Seal Stic Quick Cure epoxy stick, Stainless Steel sheet metal and SealXpert Stainless Steel Pipe Clip. Thereafter, PS102 metal repair putty was applied around the affected area. Finally, Wrap Seal PLUS Fiberglass Repair Tape and SealXpert Chopped Strand Mat were used to reinforce the repaired area.