Painting a room over existing paint is a common DIY project, but the process can vary depending on the condition of the existing paint and the desired outcome. Here's a general guide:
1. Prepare the Walls:
- Clean: Wash the walls thoroughly with a mild detergent and water to remove dirt, dust, and grease.
- Repair: Fill any cracks, holes, or imperfections with spackle or joint compound and allow it to dry completely. Sand the repaired areas smooth.
- Scrape: Remove any loose or peeling paint with a scraper.
- Sand: Lightly sand the entire surface with fine-grit sandpaper to create a smooth and even surface.
- Prime: Applying a primer is crucial for a smooth finish, especially when covering a dark color with a lighter one. It helps the new paint adhere better and ensures a more even and consistent coat.
2. Choose the Right Paint:
- Latex or Oil-Based: If you're unsure about the type of paint on the existing walls, it's safest to use latex paint for the new coat.
- Color: Consider the desired color and its coverage capabilities. A darker color will require more coats to fully obscure the previous color.
3. Apply the Paint:
- First Coat: Apply a thin, even coat of paint using a roller and brush. Be sure to cover all areas thoroughly, including corners and edges.
- Second Coat: Once the first coat dries, apply a second coat for complete coverage and a more even finish.
4. Let the Paint Dry:
- Allow the paint to dry completely before applying a second coat. This will typically take 24 hours or more.
Tips:
- If you're painting over a high-gloss finish, it's best to sand the surface to create a rougher texture for better adhesion.
- For a smoother, more professional-looking finish, use a paint sprayer.