The decision was taken to manufacture a split clamping ring, designed to fit between the VJ coupling and the flange. Utilising the amazing ability of Epo-chem™
RA 500 to cure and seal underwater, the area of damage was reduced by the clamp ring being secured, leakage was reduced to a few drops per minute. Further applications of specially reinforced Epo-chem™ RA 500 laminating resin, developed for application in wet conditions, stopped the leak completely. The patch repair was completely successful until the next scheduled shut-down. Photograph 2 shows the successful sealing of the leak.