Exterior Pipe RepairBack to
||Houston Power and Light|
||Utility Power Generation|
The exterior surfaces of these condensate pipes would receive extreme corrosion due to aggressive operating conditions. The corrosion was minimal but required immediate preventative action. The previously used protective coating was epoxy in chemistry would crack and fail due to thermal cycling.
Complete coating surfaces were sandblasted to a SSPC-SP5 white metal finish. Surface areas were then chemically cleaned using Cleaner Blend 300. Both FL10 and FL20 Primers were applied and each allowed to cure or dry for 15 minutes. Using both primers will improve adhesion of Flexane Brushable from 25 pli to 50 pli. Flexane Brushable was applied in 2 stages. Each coat was applied to a thickness of 30 mils. The first coat was allowed to partially cure for 4 hours before re-coating. Flexane Brushable provided a long lasting, flexible, (350% elongation), protective surface coating that was resistant to thermal cycling.