How to apply primer to walls

Transforming your home doesn’t always require a professional, and in many cases you can be the one to make it happen.

If you are thinking about giving your home a makeover, such as changing the color of the walls in a room or removing an outdated hotel, this article will interest you. Next, we’ll explain how to apply the first layer of background product that goes on before painting, called a primer coat.

Preparation of walls and premisesPreparation of walls and premises

A step that every DIY enthusiast should know and put into practice, namely this first coat of primer, also called primer, is vital if we want to very professional painting. Keep reading to learn more tips and tricks to help your paint adhere better to your wall using this technique.

Tips for applying primer to walls

Wall primer has become increasingly important over the years, and the fact is that the difference is noticeable in the finish and durability of the chosen color. Therefore, if you have decided to do it yourself and start working at home, it is time for you to master this technique.

As we always say, sometimes it’s best to leave certain tasks in the hands of the professionals, but if you’re on a budget or you like to do small DIY tasks, if you’re one of those people who likes to use a broad brush, you should start with a primer. If the wall is badly damaged, the first thing you will have to do is prepare and repair it. That is, you should remove all traces of paint what happened before, or remove the wallpaper and correct the imperfections with putty or the material that best suits the surface.

Wall in progressWall in progress

To ensure that the surface remains perfect before starting priming, it is advisable to sand it and thus help the wall to be leveled later with the help of a primer. With this step we can remove roughness and burrs. Primer has many advantagesamong these are, as we said, securing the color to the wall or achieving greater adhesion, but it also guarantees a good finish, strengthens the surface in case of future corrosion problems, prevents uneven paint absorption, helps hide previous colors and, of course, easily applies and dries quickly.

If you have any doubts, you should also know that it can be used on different types of surfaces, be it wood, metal or the one we are most interested in, walls, in which case the first one is a fixed sealant. one.

Steps to follow

Once you’ve prepared the wall and sanded the surface, it’s time to apply a coat of primer with a roller. There are different types of primer, the most commonly used is water-based fixing primer and can be found at any home improvement store or big box store. Follow product instructions for proper finish., this fixative is usually used in a 4-1 ratio, that is, one part product and four parts water, to dilute it well. This product is quite watery, so we recommend covering the room where the primer will be applied with wallpaper to prevent it from splashing. Using a water-based sealer will create a clear film that will adhere the new paint to the wall.

Preparing the room with suitable wallpaperPreparing the room with suitable wallpaper

On the other hand, we would also find sealing primer, this product is also used quite a bit, although the price is slightly higher. You need to be very careful as this product stains easily but is difficult to remove, so we recommend wallpapering the entire room. This product is a little more difficult to use, first of all it is necessary to use a protective mask so as not to inhale the vapors, after taking the necessary measures we will have to use a universal solvent – there are also some manufacturers who require this with water – to dilute the sealant. It must be applied with a roller and brush, as if it were regular paint.


In terms of the required coats of primer, when using a water-based locking primer, it is advisable to apply two or three coats. leave for an hour and a half to dry. On the other hand, if you choose a sealing primer, you will only have to apply one coat of primer. Professionals point out that if the wall is severely damaged, it is recommended to use a sealing primer, however, if it does not show much wear and tear, it is better to opt for a water-based sealing primer.

The wall is painted dark blueThe wall is painted dark blue

The color of the primer can also play a role. Thus, in the final finishing we can find several colors on the market (white, green, grey, red or black) and choose the one that suits us best. Therefore, if you are going to paint with light colors, blue or yellow tones, it is more convenient to use white. On the other hand, black primer is intended to darken final tones, and the most commonly used gray primer is a happy medium for colors that are neither very bright nor very dull.

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