Contents of
- 1 Why use a primer?
- 2 Kinds of primers, specifications, how much dries
- 3 Than to wash the primer
The choice of building materials for the repair of the apartment with their own hands. How to choose the right primer for walls and other surfaces?
Priming the surface before applying plaster or other coating, is of no small importance in the process of construction and interior decoration of premises. The main purpose of using priming compositions and their function is to increase the adhesion of the base of the surface with the subsequent layers of decorative finishing applied to it. Plaster, paint, tile glue applied to a surface that has not been primed with a primer mixture may peel or crack with time, as the brick, concrete and wooden surfaces have high absorbent properties. Thus, quite naturally, the question arises - which primer to choose when repairing an apartment and for what surfaces which is best suited?
Why do I need a primer?
It is easier to apply paint, decorative plaster, various adhesives and mastics to surfaces treated with primer mixtures, and the antiseptic components included in the primer protect the surface from the appearance of mold fungus. Currently, there is a rather large selection of primer mixes, or as they are also called special primers, for a wide variety of surfaces and for a variety of purposes, in their properties and components, they are divided into several categories. Depending on the type of room and what kind of coating is planned to be applied to the primed surface, it is necessary to choose the appropriate primer coating.
Improper choice of primer mix may entail additional costs for repairing the premises, and the use of primers that are not designed to cover the surfaces of interior living spaces can cause serious damage to health. Priming mixtures are a liquid homogeneous mass, which includes polymer components and various fillers and are used only as the first layer for coating other materials. In view of the fact that primer coatings do not have decorative properties, they are never used in the facial decoration of premises. So we figured out what the primer is for, we go further.
Kinds of primers, specifications, how much
dries Alkyd special primer .It is intended mainly for coating wooden surfaces, for subsequent application of a wide variety of finishing coatings, including cement-sand coatings. Due to the treatment of the wooden base with alkyd primers, the surface of the tree acquires a swollen structure, thereby increasing its "adhesiveness" with the subsequent coating applied to it. The time of complete drying of alkyd primers at a temperature of + 25 ° C is 10 - 15 hours. Alkyd primers are well suited for the treatment of surfaces of living quarters.
Acrylic special primer .Has a high penetrating ability and is considered a universal primer. It is used for treating almost all types of surfaces, such as wood, concrete, particle board or plaster, both old and fresh. It is also very suitable for the treatment of porous or very loose( eg, old plaster) surfaces. Deeply penetrating the pores, the acrylic primer significantly increases the adhesion of the porous surface. The only exceptions are metal surfaces, since after some time, rust stains may appear on them. The drying time of this type of primer is not more than 5 hours, it is also worth noting that the acrylic primer practically does not have a smell.
Glyftal special primer. Designed for surface treatment in dry rooms, as well as for application to metal surfaces as a first layer. Glyftal primer mixtures completely dry at room temperature during the day.
Perchlorovinyl special primer. As well as an acrylic primer, it can be used to coat any surface, including metal ones, but it should be taken into account that it is not possible to use this kind of primer in internal living areas, because of its increased toxicity. The perchlorovinyl primer dries no more than 1 hour.
Polyvinyl acetate special primer. Synthetic primer mixture consisting of latex or polyvinyl acetate dispersion. It is usually used only to prepare surfaces for further coating with polyvinyl acetate paints. The time of complete drying of this primer is from 15 to 30 minutes.
Phenolic special primer. It is used for priming both wooden and metal surfaces as a first layer. As well as perchlorovinyl primer it is not recommended for use in internal and residential areas. Dry phenolic primers average from 10 to 15 hours.
Polystyrene primer. Most often used for priming wooden or plastered surfaces. However, this kind of primer coating can not be used in residential buildings, since they contain highly toxic solvents. The drying time of the primer is described in the application description.
Than to wash the primer
If you get dirty with it and do not know what to clean the primer or clean the tool, in most cases, Mr. Muscle for windows, Sit for toilet and abrasive brush will help. If tiled and nothing helps, you'll have to go to a specialized building store and look for modern means. You can also try this:
1) Keep stains for several hours covered with wet rags. The primer slightly swells and is easier to separate
2) Use solvents - gasoline, acetone, turpentine, 646, 647, toluene, ethyl acetate
3) If the glaze is acid-resistant - household acid cleaning agents for sanitary ware
4) Concentrated vinegar -in a gas mask or professional mask with good filters, or you can easily burn the lungs)
The main thing is do not debug this procedure, and then it will be even more difficult to wipe off when the primer dries well. Now you know what primer to choose, what it is needed for, what kinds and technical characteristics are there, how much it dries and how to wash it off, if not carefully handled and hit on the surface. Stay with us!
