What is the best practice when finishing a woodworking project for durability?

Sanding between coats is recognized as a best practice when finishing a woodworking project to enhance durability. This technique offers several benefits. First, sanding creates a profile on the surface of the previous coat, allowing the subsequent coat of finish to adhere more effectively. This ensures stronger bonding between layers, which is crucial for achieving a durable finish.

Additionally, sanding helps to level out any imperfections or dust particles that may have settled on the previous layer, resulting in a smoother final appearance. It also removes gloss from the previous coat, which can otherwise inhibit proper adhesion. Using fine-grit sandpaper allows for a seamless transition between layers, significantly improving the overall finish quality.

In contrast, applying just one coat of finish may lead to inadequate protection, as multiple layers are generally necessary to form a robust shield against wear, moisture, and environmental factors. Finishing in a damp environment can introduce issues like extended drying times or improper curing, potentially damaging the finish. Lastly, drying finishes in direct sunlight may cause uneven curing or premature evaporation of solvents, adversely affecting the durability and aesthetic of the finish. Therefore, sanding between coats stands out as the optimal method for achieving a durable woodworking finish.