Power Transformer Paint: Smart Internal Lining Advice

Summary for power transformer paint Discussion

power transformer paint questions focus on exterior durability, corrosion protection, application methods for large units, and whether air-drying or stoving paints are used. Jayaprakash G. Rao asks what paint system is used on transformer exteriors, mentioning epoxy zinc-rich primers and aliphatic PU, and also asks about non-spray application for large transformers. He further asks whether stoving paints are now used and what should be recommended internally where temperature is important. The only answer in the thread comes from Peter Collett, who addresses the internal side: he recommends a good-quality tank lining paint specifically designed for power transformer service, available from many manufacturers. He also cautions that application should only be done when ambient conditions meet the manufacturer’s requirements, especially temperature and dew point. The thread does not provide a detailed exterior coating system or alternative application method.