What is the primary purpose of wood finishing?

The primary purpose of wood finishing is to enhance the appearance of the wood and provide protection to its surface. Finishing processes such as staining, sealing, and applying topcoats enrich the wood's natural beauty, add color, and bring out the grain patterns. Additionally, a good finish protects the wood from environmental factors such as moisture, dust, and UV light, which can lead to deterioration or discoloration over time.

While making wood water-resistant is indeed a benefit of finishing, the broader purpose includes both aesthetic improvement and protection, which is why the selected answer encompasses the full scope of wood finishing objectives. Changing the wood to a lighter color can be a specific outcome of certain finishing techniques, but it does not represent the primary purpose of finishing, which is comprehensive in both enhancing appearances and providing essential protection.