How to Prepare Walls for Paint After Removing Wallpaper

Maybe your wallpaper style and quality are getting worn and they have become old and you need to replace the wallpaper with a layer of paint. Before you go straight to the painting part you will have to know how to properly remove the wallpaper and make the wall ready for a new layer of paint.

The glue and the wallpaper material may leave any unwanted mark or dents that might be bad for a layer of good quality paint. There are several steps that you might need to go through to make the wall for a new layer of paint.

How to Prepare Walls for Paint After Removing Wallpaper

I have seen a lot of questions like how to prepare walls for painting interior easily. In different forums and community the home enthusiasts ask these questions for better insight.

Preparing walls can be difficult without the proper use of tools and guidance. Especially after removing the wall paint, you need to smooth the surface cover it for painting. Here are the ways you can follow from below.

Tools to Use for the Preparation

Tools to Use for the Preparation

Before we go deep into, we will know what instruments and substances we might need. Actually, there are not so many things that you might need. A metal scraper will help you through the process. Plastic razor scraper will do the best.

If you can get a steamer to help you out. Sometimes steamers are needed if the wallpapers are old and the adhesives are hard to scrap out.

On the market, you will find several chemical solvents that are specialized to remove the adhesives. These chemicals come in bottles. If you can get a spray bottle one. Spraying from a bottle will be easier for you if you are a first timer. You can use any liquid soap or fabric softener as a chemical solvent.

If you are desperate enough, you can get a scoring tool to remove thick and tough wallpaper layer. It’s a small sized tool that cuts through the wallpapers and cuts them into small pieces that makes the wallpapers easy to remove. But when using this device, you have to be very careful so that you don’t leave any mark on the wall.

Good quality white wall putty will be needed. You can find them on your local hardware shops. Sanding papers and sponge or towel will also be necessary through the removal process.

Now we are going to go step by step:

Cleaning Walls for Painting

Step 1: Cleaning Walls for Painting

You have to try a bare hand or use a scraper and go for a seam or a corner of the wall that you want to get ready. It is the most important part of cleaning walls for painting. First, take any corner and start peeling it away from the wall. The wallpaper will come out easily if it’s not very old or went bad. Otherwise, it will leave adhesives or torn paper on the wall which is not easy to get rid of.

If the wallpaper along with the adhesive does not come off easily, you will have to go for a plan B. Take a spray bottle and fill it up with warm water and dissolve some liquid soap or fabric softener in the bottle. Spray some of the solutions on the wall. Especially target the corners or seams so that the solution gets into the adhesives and makes it softer.

After spraying you can leave the wall for 10 to 15 minutes and the wallpaper along with the adhesive will get soft and come off easily. If you can do cleaning walls for painting with spraying soap water, it will be much smoother, leaving the rest work more simple.

Even if your plan B does not work you will have a backup plan of streamer that we told you to have. You can peel off the wallpapers in small sections and apply steam on the corners to make the adhesives soft enough to take the wallpaper out.

Going through the mentioned plans you will have a wallpaper free wall and now it’s time for you to make the wall ready for fresh paint.

Step 2:

Even after you have removed the wallpaper successfully, there may be some remaining adhesives or dirt on the fresh wall. Take your steamer pipe and use a small sponge or soft towel or cloth.

Spray a minimal amount of steam on small sections of the wall and rub the steamed surface using sponge or towel. You will be able to get rid of all the adhesives. Now, let the wall dry off and leave it for two to three days.

Sanding Walls Before Painting

Sanding Walls Before Painting

It is important to properly sanding walls before painting. To sand the surface of the wall you will need 120-grit sandpaper. Sanding the surface will make the surface more magnetic to the paint. Sand the whole wall and make sure that you do not leave dust on the wall.

You can use a proper oscillating tool for sanding the wall too. It can sand the wall and leave a smoother surface than many other tools efficiently. No matter, what tool you use, you need a proper guidance on using it.

While sanding or afterward you may find dents or bumps on the wall that might give you a hard time making the paint look smooth. Cover any holes or dents using wall putty. Take a bit of wall putty on a scrapper and carefully cover the hole. Let dry and sand off the extra if necessary.

Now your wall is ready for a new layer of paint.

To apply paint on the wall the roller will be a very good choice to spread the paint evenly on the wall. The paint may take a bit of time to dry. Apply one coating and after two days apply a second coat and now you are having a fresh and smooth painted wall.

Safety Measures to Take in the Preparation Process

Even if the job of repainting a wall looks like an easy job but there are some issues that you should be concerned about.

  • Make sure you are prepared well. Cover up the furniture on the room using paper or plastic covers. Otherwise, the dirt may ruin your household stuff.
  • Be careful when using any chemical substances like adhesive removers. They emit gases that might give you a bad time when breathing.
  • Please use a dust mask to prevent any dirt from getting into your node. You should be wearing a safety glass to protect your eyes from the dust.
  • When sanding with tools, check the blades of the multi-tools, See if they are sharp enough or not.
  • Be careful when you are handling the steamer. The exhaust pipes are always hot and you have to be careful when holding the pipe and applying steam.
  • Always remember when you are removing wallpaper the dust or dirt in the air is dangerous for kids. So, it’s recommended that you keep your kids in a separate room or house if you can when working.

Last Few Words

Before starting the preparation of the wall, after removing the wall paint, you should use the power oscillating tools which you already have tried. You can also see the projects of oscillating tools article for better information. In most of my wall painting preparation, I used scrapper with better efficiency. Though I agree that wet soap works smoothly for wallpaper or another adhesive.

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