Repair is a responsible task, which requires not only time and money, but also a certain experience.
If it is wrong to perform even the most basic tasks, then the result of your efforts may turn out to be short-lived. For example, this applies to plastering.
A person can spend a lot of energy on plastering the walls of an apartment or other object, but after a few days, weeks or months he notes with horror that the new coating is cracking and sprinkling.
How to prevent this? - It is enough to avoid the following 5 common mistakes.
Poorly prepared base
Before applying a new layer of any coating, it is necessary to very efficiently clean the base of the treated surface from old material.
This can be old wallpaper, plaster, putty, a coat of paint, some other things. All this should be carefully peeled to the maximum; you should not leave anything from the old coating.
Sometimes it is allowed not to completely encumber the old layer if it sits very firmly.
If this is not done, then it turns out the following - the new plaster is applied to the walls according to all the rules, but since it lies on a shaky foundation, it begins to fall off, exfoliate, crack due to vibrations, etc.
Some self-taught masters believe that a primer is a completely optional matter. Or they simply don’t know about its existence.
As a result, a new layer of plaster is placed on a surface that has not been primed. Particles of old material, dust, paint, sand, dirt remain under it in a free state, reducing adhesion.
At the slightest load, say, a blow from the front door or children running around the apartment, the absence of a bonding layer makes itself felt and the plaster begins to crumble and crack. That is why the primer is better to use necessarily.
Poor mix quality
There is a rule - when mixing the solution, first the water is poured into the container, and then the mixture itself is added.
If you do the opposite, then nobody can guarantee the quality of mixing the dry material into the mixture of the desired consistency.
Even a good mixer can not cope with such a task. If there are poorly mixed components, lumps, pebbles in the plaster, then it will not allow the master to work normally, it will begin to fall off as soon as possible.
Incorrect temperature conditions
It is recommended to plaster the walls at a room temperature of +5 - +25 degrees Celsius. If, for example, the temperature is too high, then the water from the solution will dry too quickly, the gypsum will not be able to solidify correctly, according to the technology.
Low temperatures are also dangerous, as the material will crystallize too slowly.
Add water to the mixture
Many people add water to the finished solution, seeing that it has begun to set or is losing its consistency.
This is wrong, since the properties of such an education are already different from those that are necessary for work.
Adhering to simple rules of work and avoiding the indicated errors, even a layman will be able to repair his home well.
Do you know what mistakes cause fresh plaster to fall off the walls? Share your experience in the comments.