How can I effectively apply polyurethane or epoxy on wood to achieve a durable and glossy finish?

To effectively apply polyurethane or epoxy on wood for a durable and glossy finish, follow these steps:

1. Prepare the wood surface by sanding it smooth and clean.
2. Apply a coat of polyurethane or epoxy using a brush or roller, following the manufacturer's instructions for mixing and application.
3. Allow the first coat to dry completely before applying additional coats, typically 2-3 coats are recommended.
4. Sand lightly between coats to ensure a smooth finish.
5. Allow the final coat to cure fully before using the wood to achieve a durable and glossy finish.