Have you ever thought about renewing the interior wall paint in your home? You will definitely face the problem of previous paint on the walls! As it requires that you take certain procedures before painting the painted walls. In this article, an explanation of easy steps to learn how to paint pre-painted walls, which must be followed in detail to ensure the best results on the ground.
Necessary tools and materials
Primer (primer), white recommended.
The final paint.
Wall putty.
Roll brush.
Ordinary brush.
Schaft or putty knife.
Large plastic caps.
Paper adhesive.
Canvas pieces.
Tenner.
Wire brush, or wire mesh.
sandpaper.
Flame of combustion.
How to paint previously painted walls
1- Preparing for the process of painting the walls
First, basic and important preparations must be done before painting previously painted walls, as it is necessary to:
Purchase the appropriate paint for the walls, according to your desire (matte or glossy). It is recommended that you calculate the wall area to estimate the required amount.
Cover the furniture in the room after moving it away from the walls to be painted, to avoid exposing it to paint stains during the painting process.
Also, cover the floor with plastic sheets, to protect the floor from getting dirty and to avoid making more effort to remove stains on the floor.
Remove any decorations or hardware on the walls before doing anything. This is like the frames, electric frame covers, or the TV if it is hung on the wall.
Cover small accessories and parts that you cannot remove and remove, such as electrical cans, with paper tape to protect them from paint, or by using large plastic bags.
2- Scrape any lose or peeling old paint first
The important step before knowing how to paint previously painted walls is to scrape any lose peeling old paint, as you need to do this in case you notice cracks in several places in it, a trace of moisture, or a crusting of the paint layer. In the absence of any of these marks on the old paint, the old layer can be preserved, and the steps explained later.
To remove old paint, there are several methods that can be tried, including:
Scraping, where you have to scrape off the peeled parts of the old paint, using a scraper, where you put them in an angle and then hit the wall lightly from several sides around the place of peeling.
Removing - If the abrasive method does not work, try removing the paint with a thinner paint (thinner) liquid, where you put a little of it on the wall and then scrub it well with a bristle or wire brush.
Heating, the heat gun or torch can be used by directing it on the walls while scraping it at the same time. This process is most needed in previously painted walls with oil.
Sanding: Use a hand or electric sander to sand the walls with sandpaper. Use coarse sandpaper (No. 40 for example) to speed up the process.
3- Preparing the walls
After removing the old paint from the walls, the following should be done:
Add joint compound to close openings and cracks in walls
Clean the wall with a cloth dampened in water by wiping it gently.
Leave the walls to dry completely. You can open windows or turn on an electric fan to speed up the process.
4- Painting the walls with new paint
After preparing the above, it is now the turn to know how to paint previously painted walls with a new paint, which is by doing the following:
It is advisable to start with primer paint, in case the wall has a color darker than the paint to be painted.
Use a roller brush to spread the paint on the wall, make sure to cover all areas with an even layer of paint.
Leave the surface to dry for a minimum of 4 hours. Then, re-paint it with a new layer, if the previous color was still visible.
Mix the final paint well (with a wooden stick) before starting to use it.
Start by painting the ends with a hand brush, by dipping the butterfly in paint and leaving it to drip out the excess paint, then comb the paint on the walls, starting with the edges of the upper and then the lower walls.
Use the butterfly roller to paint the rest of the wall.
Leave the surface to dry for 2-4 hours.
Depending on how deep the new color you want to get, make another coat of paint.
Leave the paint to dry overnight, sometimes the interior wall may take 24 to 48 hours. Make sure to avoid touching the wall during this time, or exposing it to a draft of dust.