What are the best practices for applying polyurethane sealant on wood surfaces?

To apply polyurethane sealant on wood surfaces, follow these best practices:

1. Prepare the surface by sanding and cleaning it thoroughly.
2. Apply the sealant in thin, even coats using a brush or cloth.
3. Allow each coat to dry completely before applying the next one.
4. Sand lightly between coats for a smooth finish.
5. Apply multiple coats for better protection and durability.
6. Follow the manufacturer's instructions for drying times and application techniques.