Types of putty: we will understand everything
Surely many, when planning repairs in the house, do not imagine that the first difficulties arise even at the stage of choosing building materials. And the matter does not always depend on taste preferences or budget capabilities, some materials, having the same name, are used in different situations.
In this article, we would like to talk about the types of putty for walls, and we hope that this will help someone to understand the full variety of this material.
The content of the article
What is putty
So, what is putty and why is it needed? In fact, it is a mixture to fill in the unevenness of the walls and the errors made during construction.
Four types of putty can be used in the repair, depending on the further decoration of the walls:
Leveling putty | It has a coarse-grained fraction and is designed to fill and level large irregularities on the surface. |
Putty for painting | She has the smallest fraction, so that the surface becomes perfectly smooth and can be painted. |
Universal | The most common option for minor repairs, or when high demands are not placed on surface quality. |
It would seem that more can be said about this material. But no, the types of putty for walls are not limited to the list above.
What is the difference between putties
Often one of the most important aspects of a repair is its final cost. Of course, you can not count money and use only the most expensive, but not always it is an indicator of quality. This also applies to putties - a mixture used for facades (see. Facade putty - features of choice and use), is not suitable for internal work, and despite the fact that its price is higher.
That is why it is so important to understand what types of putty for walls are and where to use which.
Ready to use
According to the degree of readiness for use, plasters are distinguished by:
- Dry mixesdo-it-yourself cooking (see How to breed putty with self-repair).
- Ready mixes in sealed containers. They do not require preparation and are ready to use.
Among builders, the first option is considered more preferable, since it is possible to prepare a solution of the required consistency and in the right quantities. The second option is slightly more expensive, but it should be chosen if there are no repair skills or the area being repaired is small.
By and large, it does not matter what condition the selected putty is in - the types of putty can also differ in composition, and this is much more important.
The composition of the putty
The main component of the putty is its binding component, the durability of the coating depends on it. In addition, some types cannot be used in rooms with an aggressive environment, such as a bathroom or kitchen. But first things first.
Gypsum
Gypsum putty - One of the most popular options among specialists.
Despite the relatively low cost, it has a number of positive qualities.
- It does not shrink after drying.
- Easy to level.
- It has high adhesion to any surface.
Unfortunately, there are several disadvantages that significantly limit the use of this type of putty:
- A high degree of moisture absorption, so it can not be used for outdoor work and in rooms with constant moisture.
- Quick freezing. Factor to consider when diluting the mixture.
Cement
Cement based putty it has a predominantly gray color, as shown in the photo above, but a wider range of uses, since it has a high degree of moisture resistance and practically does not deteriorate in an aggressive environment. It can be used both for internal work and in the decoration of the facade.
Important! For facade work, a reinforcing mesh is often used, which must necessarily be resistant to alkalis, which are present in all materials based on cement.
There are several disadvantages:
- Surface roughness even after careful leveling.
- Shrinkage and cracking during drying are possible.
Active polymer
- The most expensive and at the same time universal material with a huge set of positive qualities. The polymer in the composition of such plaster perfectly interacts with any type of coating and is completely neutral to moisture and temperature changes.
- Polymer plaster can be used for both outdoor and indoor work, regardless of the purpose of the room. In addition, it has high plasticity and can be sanded for painting or thin wallpaper.
Important! When buying polymer plaster, it is always necessary to require quality certificates from the seller, since due to the rather high cost and popularity among consumers, it is most often faked.
In order to understand the parameters and applications of the types of putty, here are a few tables with the characteristics.
Binder component | Types of finishes | Wall material | Complexity of the room | Subsequent finishing | ||||||||
outdoor | internal | brick | concrete | foam concrete | Old stucco | dry | wet | No heating | Decorative plaster | Wallpaper | painting | |
Gypsum | – | + | + | + | + | – | + | – | – | + | + | + |
Cement | + | + | + | + | + | – | + | + | + | + | undesirable | undesirable |
Polymer | + | + | + | + | + | + | + | + | + | + | + | + |
Parameters:
Parameters | Gypsum plaster | Cement | Polymer | ||
Starting | Finish | Starting | Finish | ||
Colour | white | white | Gray | White gray | white |
Layer thickness mm | 0.3-8 | 0.3-3 | 0.8-10 | 0.8-5 | 0.1-3 |
Drying | Up to 2 days | Up to a day | 2-5 days | 2-3 days | 4-7 hours |
Moisture resistant | no | Fully resistant | Yes | ||
Frost resistance | no | Not less than 35 cycles | Yes | ||
Consumption per m2* | 1-1.2 | 1-1.2 | 1.6-1.8 | 1.2-1.4 | 1.2-1.5 |
* Consumption is indicated in kilograms of the finished mixture, taking into account a layer thickness of 1 mm.
And in order to clearly understand how to work with ready-made mixtures, you can watch the video in this article.
Conclusion
Well, finally, we highlight some important tips that will greatly facilitate the work and extend the life of the finished surface:
- Each package contains instructions for use. No need to experiment and it is better to familiarize yourself with it immediately.
- If the putty is applied in several layers, you need to select all the components of the same manufacturer. Otherwise, adhesion is not guaranteed.
- Always require quality certificates before you buy.
- The high cost of the material is not yet an indicator of its quality.
Now you will choose the putty more deliberately and prepare it correctly. This is especially important when finishing. After all, here already the plane must be made ideal.