The choice of materials for internal work is very different from the choice of materials for facade work. Outside the most important thing is resistance to atmospheric phenomena, and inside the most important is light resistance and moisture resistance, good grindability, mechanical strength, as well as environmental cleanliness, especially when we talk about living quarters. An important question is how to properly putty the walls. But all in order.
How to putty the walls: the choice of mixture
You should start with the selection of putty. At the moment, oil-based adhesive compositions based on drying oil are very popular, as they are easy to use and quite cheap. In everything else, drying oil has only drawbacks: fragility, environmental insecurity, poor compatibility with other materials and terrible mechanical strength. The choice of such putty is unsuccessful, especially when it comes to processing the facade.
At the moment there is a fairly wide selection of mixtures based on gypsum or cement on the market. This option is better than the previous one, but it also has drawbacks. All such putties are semi-finished products that need to be poured into a container, add water and mix thoroughly, and this is sometimes difficult to do without special equipment. After dilution with water, the life of the dry mixture becomes very limited, and if you do not have time to use it, it will turn out the money thrown away. At first glance, such arguments seem insignificant, but they undermine the developed market of dry mixes in European countries.
All of these shortcomings are completely absent in mixtures based on aqueous dispersion. Here you can not be afraid for health, since an aqueous dispersion of the polymer, which is environmentally friendly, acts as a binding material. If this material is qualitatively closed in a plastic bag or in a jar, then you have the opportunity to interrupt the repair for several days, without fear that the mixture will dry out.
How to putty the walls: go to the process
While this is not an easy task, you can handle it if you wish. It is important to note that the surface on which you will apply the mixture should be flat, as this is already a finishing putty on the walls, designed to cope with small roughnesses. You will need a very specific set of tools for this task: spatulas of different widths, mixer nozzle, drill or perforator, sanding sheets, plastic bucket. In the case of using dry putty, you will need to stir it using the above nozzles on the drill. This is done easily, you just need to pour a third of a bucket of dry mix, gradually adding water, stir it, bringing the solution to the consistency of liquid sour cream. After that, you can get down to business.
How to putty the walls: the process itself
This is done quite simply. You need to take a smaller spatula, distribute the putty evenly across the width of the spatula, and then apply a thin layer to the wall. Here you should experiment to understand how the material lies, how much it costs to take, and feel the rest of the nuances. When you already understand exactly how to putty the wall, practice, it will become noticeably easier for you.
It is important to remember that the small strips remaining from the spatula, as well as the remaining roughness, you can remove later. This is done by applying a second layer of finer putty or using special sanding sheets. In principle, this is all about puttying walls. This article describes the process itself, and the preparation for it, and the advantages with the disadvantages of each type of putty. Good luck with your repair.