How to Paint Over Satin Paint With Flat

Prep the walls you want to paint. Fill holes with spackling and smooth it with a putty knife, sand any rough spots and ensure the walls are clean. Even if the walls you are painting are interior walls, you need to run a damp wash cloth over the walls to remove any loose dirt or dust to ensure the best quality paint job.

Run light sandpaper over the satin finished walls prior to painting. This will help the paint and primer stick to the wall and increase the longevity of the paint.

Tape all trim and ceiling lines with painters tape to prevent your new paint from transferring onto surfaces where you don't want it.

Prime the walls before painting them. Pour white primer into your paint bucket/dish and run your paint roller or brush through it. Apply the primer to the walls. It's easier to use a small brush in corners and along trim and a roller to do the rest of the walls. Reapply brushes and rollers with paint when necessary.

Let the primer dry completely before you begin painting with your flat paint. Pour the paint into a bucket or dish and use a roller and paint brushes. Let the paint dry completely and apply a second coat as needed.