The process of applying a protective coating to wood that has undergone chemical preservation is a common practice in construction and home improvement. This treatment extends the lifespan of wood exposed to moisture and insects, but requires specific surface preparation and coating selection for optimal adhesion and longevity of the finish.
Properly finishing this type of lumber offers significant aesthetic and protective advantages. It enhances visual appeal, allowing customization through color and sheen. More importantly, it provides an additional barrier against environmental factors, further safeguarding the wood against weathering, decay, and potential leaching of treatment chemicals. Historically, finishing such lumber was often overlooked, leading to premature coating failure and a less durable final product.