- Clean the surface: Before applying primer, clean the painted surface with a mild detergent to remove any dirt, grease, or dust. This step is essential for optimal adhesion.
- Sand the surface: Lightly sand the painted surface using fine-grit sandpaper. This helps create a textured surface for the primer to adhere to. Wipe the surface clean after sanding to remove any dust.
- Prime the surface: Apply a thin and even coat of primer using a brush or roller. Allow the primer to dry completely as per the manufacturer’s instructions before proceeding with the new paint.
- Apply the new paint: Once the primer is dry, you can apply the new paint over it. Follow the manufacturer’s instructions for the specific type of paint you are using, and apply multiple coats if necessary for a smooth and even finish.
While primer is traditionally used on bare surfaces, it can also be applied over painted surfaces to ensure improved adhesion, hide previous colors, and help seal stains or odors. It is necessary to use primer on painted surfaces when making drastic color changes, patching damaged areas, or dealing with glossy sheen paint. By following the correct preparation and application process, you can achieve a professional and long-lasting finish on painted surfaces.