polyurethane to paint
Many houses that were built in the 1980s have natural wood trim with polyurethane. Sometimes the wood is stained. Many home owners no longer like the look. I usually have a least one job a year painting natural wood. It is a lot of work. The poly needs to be cleaned and a really good sanding. Usually the nail holes have to be filled and the sparkle sanded smooth. Then a bonding primer. Then caulking, and finally two coats of finish paint. On this job I am also removing the chair rail before painting.