The customer manufactures and tests gas turbines for power generation. Upon receipt of several units from a supplier, they noticed severe corrosion on the machined surfaces of the mounting pad used to attach gas turbines to their base plates. If not corrected, the corrosion would prevent proper seating of the turbine on the base plate. Since corrosion continues once it has started, it would also cause the joint between the turbine and base plate to become loose and cause excessive vibration. Since Cortec® has long been the customer’s go-to for all corrosion-related issues, the site contacted Cortec® for assistance.
Cortec® supplied VpCI®-423. The customer applied this to the rusted areas and allowed it to sit for a period of time before cleaning it off with a 10% solution of VpCI®-414. In total, each base plate took about one hour to clean, though active labor time was only about 15-20 minutes apiece.
Application of the Cortec® products removed all evidence of corrosion from the machined surfaces. It also significantly reduced the manhours and potential damage of removing rust by grinding and manual wire brushing. Within two weeks of their initial request for help, the customer sent another email to their Cortec® representative saying that VpCI®-423 had worked like magic.