Plaster, which is better in its characteristics
If you are planning plastering walls, rather than finishing them with sheets of drywall, consider yourself a hero, and not because it's hard to work with plaster, not at all. Simply preliminary it is difficult to understand what kind of mixture you need. Not only that, there are three types of compounds: simple, complex and decorative. So also simple components are divided into limy, calc-gypsum and cement. However, here the choice is easy enough: lime-plaster and lime plasters can be used for interior and exterior finishes, cement and complex compounds - only for exterior, and interior plastering of walls is performed.
And further on, those who want to get acquainted with the plasters in detail are waiting for even more information. Briefly, for example, you can base your choice on the conditions of hardening of the mixture, which are different for different component compounds: air( lime solutions), hydraulic( lime-cement plasters harden both in air and in water).If you are satisfied with any plaster in this respect, which is best frozen, pay attention to the setting speed of the composition.
Mixtures that have a composition of alabaster or a liquid glass harden extremely quickly, but the calcareous solutions are frozen for a long time.
There are also differentiation of mixtures, in particular, according to their thermal properties: warm solutions, which are also called lungs due to excess of bulk weight of water of general inert weight, and cold solutions, in which all are exactly the reverse. There are waterproof mixtures, such as cement with liquid glass, hydrolysite and other types of additives, as well as compounds that easily pass moisture - these are lime and cement solutions without the appropriate fillers.
Which plaster to choose for the decorative finish
Having carefully studied the various factors of choosing a particular plaster mix, you will easily begin to navigate in the numerous marks of this building material. However, even knowing what composition is suitable for indoor work, one should also consider its secondary properties, which can to a certain extent affect the quality of the finish. Even the separation of solutions into groups according to their inherent color should not be left without attention, although the choice is simple: either gray compounds( simple) or colored( complex, decorative).
At the time of acquiring the mixture, if you want to get exactly what you need, listen less to the word of the seller, who first of all can try to get rid of a stale or simply second-rate goods. It is better to pay attention to the list of components, whether there are such binders as silicone and silicate additives, acrylic or various minerals. It is for them to classify decorative plasters, getting those or other useful properties. For example, acrylic plaster is durable than the others, but combustible, and mineral has excellent vapor permeability, it is fireproof, but it is completely unstable to vibration. So, it is necessary to decide which plaster to choose, based on the essential tasks.
The choice of plaster for the composition
It is known that most plaster mixes are sold in dry form. And it is not surprising, taking into account the pour point of many solutions. Based on the approximate calculated hardening time of the composition and should choose a certain option for the upcoming finishing works. What does it mean? Well, for example, you can do repairs every day for several hours, at the end of which you go about your business. It is clear that with this schedule of work it is more convenient to use calcareous mixtures that can be stored for several days in a diluted state. The only thing that is lost from the properties inherent in such a composition is plasticity, so every time before the beginning of wall finishing it is required to add astringents to the solution.
If you can work only once a week, then it is not economical to leave even a long hardening solution for such a number of days, it is better to make( start) a new portion each time. But, in this case, you can use a quick-setting lime-gypsum mixture, which is recommended to be used within a few minutes. It is perfectly applied on wooden and stone surfaces, as well as on such exotic as cane and straw. The only condition for using such a composition is that the room should be uncontaminated. Thus, before choosing plaster, determine for yourself the front of the work, their conditions and schedule. Believe me, this will greatly facilitate your choice.
