How can I effectively apply polyurethane on pressure treated wood to enhance its durability and appearance?

To effectively apply polyurethane on pressure treated wood for enhanced durability and appearance, follow these steps:

1. Prepare the wood by sanding it smooth and removing any dust or debris.
2. Apply a wood conditioner to help the polyurethane adhere better.
3. Use a high-quality brush or applicator to apply the polyurethane in thin, even coats.
4. Allow each coat to dry completely before applying the next one.
5. Sand lightly between coats for a smooth finish.
6. Apply multiple coats for added durability and a glossy finish.
7. Allow the polyurethane to cure fully before using the wood.