• Industry Power
  • Problem Chemical Attack and Corrosion / Erosion
  • Country United States
  • Project Goal

    These pressure ducts / piping located at a hydroelectric plant were in need of a solution to prevent internal corrosion and potential leaks. Some of these ducts date back to the 19th century.

  • Products Used CHEMCLAD XC, DurAlloy, and DuraWrap
  • Status Completed

After the plant’s maintenance engineers contacted the local ENECON distributor it was decided the ducts would be protected internally with a METALCLAD DuraWrap Carbon Fiber Pipe Wrap System. A solution that would not only stop the existing corrosion, prevent future corrosion, but also provide structural reinforcement to the pipes.

The internal surfaces of the ducts were first abrasive blasted. Due to their age, some of the ductwork was originally assembled with rivets.

METALCLAD DurAlloy paste grade filler was used to smooth the rivet transition areas to allow 2 layers of carbon fiber to have proper coverage.

Finally, a topcoat of CHEMCLAD XC high-performance epoxy coating was applied to ensure ultimate protection of these ducts/piping interiors.

This project cost was less than one-third of the conventional replacement of this piping which would not have been possible since the plant had a limited window to complete these repairs!