How To Paint New Plaster
Painting new plaster is not just about slapping on a coat of paint; thorough preparation and well-researched technique is needed to achieve a perfect finish. In this guide, we walk you through a tried-and-tested method to prepare and paint new plaster, so you’ll get a beautiful and long-lasting result in no time.
Essential Tools & Equipment
Step 3: Sanding the Surface
Once the filler is dry, sand down the imperfections using a 180-grit sanding mesh to prevent clogging, which is common with sandpaper.
- Use a pole with a sanding head for ceilings and a hand sander for walls to make the process more comfortable.
Step 4: Mixing the Mist Coat
Prepare the mist coat by mixing a 50:50 ratio of water and contract matt emulsion paint using a paddle mixer.
- Many manufacturers will advise a 10:1, 70:30 or 60:40 ratio of paint to water, so it’s best to start with less and add more as you go along.
- Mix the solution using a drill with a paddle attachment in a large bucket or paint scuttle to achieve a watery consistency, like a very thin soup.
The paint should quickly and freely drip off your paint brush.
Step 5: Applying the Mist Coat
- Apply the mist coat around the edges or covings around the wall using a paintbrush.
- Follow up with a 12-inch roller to cover larger areas, ensuring an even application.
- Apply a second coat after 24 hours if necessary for better coverage, but one coat should be fine as long as you’ve got the ratio right.