How to Polyurethane Over Water Based Paint

Polyurethane is a tough, durable finish that can be applied over water-based paint to provide extra protection. It is important to follow the correct steps to ensure that the polyurethane adheres properly and does not damage the paint.

Materials Needed:

* Sandpaper

* Tack cloth

* Water-based polyurethane

* Foam brush or roller

* Paint tray

* Disposable gloves

Instructions:

1. Sand the painted surface lightly with 220-grit sandpaper. This will help to create a smooth surface and remove any loose paint.

2. Wipe the surface with a tack cloth to remove any dust.

3. Apply a coat of water-based polyurethane to the surface. Use a foam brush or roller to apply the polyurethane in thin, even coats.

4. Allow the polyurethane to dry completely before applying a second coat. The drying time will vary depending on the type of polyurethane you are using.

5. Repeat steps 3 and 4 until you have applied the desired number of coats.

6. Allow the polyurethane to cure completely before moving or using the object. The curing time will vary depending on the type of polyurethane you are using.

Tips:

* Make sure that the water-based paint is completely dry before applying the polyurethane.

* Apply the polyurethane in thin, even coats.

* Allow each coat of polyurethane to dry completely before applying the next coat.

* Do not apply polyurethane in direct sunlight or in humid conditions.

* Use disposable gloves to protect your hands from the polyurethane.

By following these steps, you can successfully polyurethane over water-based paint to create a durable, protective finish.