Do you want to know how to paint over peeling paint on walls? It has been a long time, and your wall no longer looks smooth. Moreover, the paint has been flaking for some time, and you now want to renovate the surface.
Before you start, check what is causing the paint to flake. If it’s old paint that has lived well, no problem, the paint may be degrading due to moisture or an unhealthy wall. In this case, you will have to deal with the particular problem before you begin any renovation.
Then, to repaint your wall, everything depends on the type of paint already in place, acrylic (water-based) or glycerol (so-called “oil-based”). You will then have to repaint your entire wall, not just the damaged part.
Indeed, even if you have kept the reference of your old painting, the one already present on your wall will have faded with time, for example, color that yellows or lightens. Before repainting your damaged wall, there are a few precautions to take. Here are some tips from pros for a perfect result!
How to Paint Over Peeling Paint on Walls
In The Case Of Slight Chipping
Brush and sand the flaking surface with medium-weight sandpaper to remove the scales. If there is a problem of humidity, it is best to apply a fixative or hardener.
Also, sand the entire surface of the wall, especially if the old paint has a satin or lacquered finish, as the protective film will have to be broken for better adhesion. Then, clean with a soft cloth.
Now, you should apply a suitable undercoat. Then apply at least two coats of paint (specific if it is in a bathroom or kitchen).
If It’s Deep Flaking
Again, brush and then sand the chipped surface with medium-weight sandpaper to remove the scales. But this time, if necessary, you can also level the roughness with smoothing compound, which you should apply with a spatula. You don’t have to put a lot of it on, so there won’t be any need to reapply.
Then, as with light scaling, sand the rest of the wall, apply an undercoat and then at least two coats of paint suitable for your room.
Glycerol – Type Paint Flaking
If your wall is painted with glycerol paint, and you want to renovate it with acrylic paint, you will have to remove all the old coating. Remember acrylic paint doesn’t stick to glycerol paint. You have to be careful, because it’s a very common paint in old houses.
The easiest solution is to strip your entire wall. Two methods are available: chemical stripping using solvents or thermal stripping with a paint stripper. Both will soften the coating you want to remove and all you have to do is rub the surface with a spatula.
Then sand with a medium grit and clean with a soft cloth. Spread an undercoat over the entire wall and then at least two coats of paint.
Conclusion – How to Paint Over Peeling Paint on Walls
In any case, it is important to know that a paint that dries to the touch is still vulnerable. So whatever type of paint on your wall, wait a week before you reposition your furniture and decorative objects.