Painting painted plaster walls involves preparation, priming, and painting to achieve a professional and lasting finish. Here's a step-by-step guide:
1. Preparation is Key
- Clean the Walls: Remove any dirt, dust, grease, or cobwebs. Use a damp cloth or sponge with a mild detergent solution.
- Repair Any Damage: Fill any holes, cracks, or imperfections in the plaster using patching compound. Allow the compound to dry completely according to the manufacturer's instructions.
2. Sanding for a Smooth Surface
- Sand the Patched Areas: Once the patching compound is dry, sand it smooth to blend seamlessly with the surrounding wall surface. Use fine-grit sandpaper (120-grit or higher).
- Lightly Sand the Entire Wall: This helps create a slightly roughened surface that the primer and paint can adhere to.
3. Priming for Adhesion and Even Finish
- Choose the Right Primer: An acrylic latex primer is generally suitable for painted plaster walls. If you're dealing with stains or potential bleed-through, consider a stain-blocking primer.
- Apply Primer: Use a brush or roller to apply an even coat of primer to the entire wall surface. Follow the manufacturer's instructions for drying time.
4. Painting for Beauty and Protection
- Select High-Quality Paint: Opt for a high-quality interior paint in your desired color and finish (matte, eggshell, satin, semi-gloss, or gloss). Consider factors such as durability, washability, and the room's purpose when choosing the finish.
- Apply the First Coat: Use a brush or roller to apply a thin, even coat of paint to the wall. Allow the paint to dry completely before applying a second coat.
- Apply the Second Coat (and possibly a Third): A second coat ensures complete coverage and a uniform finish. If the color change is significant or the paint is thin, a third coat may be necessary.
5. Cleanup
- Clean Your Tools: Thoroughly clean your brushes and rollers with soap and water (or the solvent recommended by the paint manufacturer) immediately after painting.
- Store Leftover Paint: Store leftover paint in an airtight container in a cool, dry place.
In summary, properly preparing the walls, applying primer, and using high-quality paint are crucial for painting painted plaster walls effectively and ensuring a long-lasting, beautiful finish.
