Liquid wallpapers are in demand finishing material when placing walls and ceiling of different rooms. So that this finish was held on the surface for a long time, it is necessary to use a special primer before sticking. In this article we will understand in the intricacies of the selection of primer for liquid wallpaper, exploring the recommendations of specialists.
The primer is a means of preparing the basis for a further finish. It is produced in the form of a concentrate or a ready-made composition that does not require adjustment before applying to the surface. An option of a concentrated type is a powdered mixture, which is necessary to dissolve water temperature before processing surfaces of the walls and ceiling. The amount of water to dilute the specific type of material is indicated on the packaging of goods. The consistency of the finished composition resembles thick milk.
The structure is distinguished by viscosity, at the expense of which this material binds microcracks, Pores and dust of processed surfaces. In the processing process, the primer penetrates into the thickness of the overlap layer to a depth of up to 1 cm and makes the walls with homogeneous. This is especially true for the walls performed with a violation of technology, which gives the sand-spirited sand, as well as porous bases.
Primer is distinguished by different penetrating ability, but regardless of the type of material it strengthens the walls.
Material is sold in plastic buckets and canisters. The most popular volume to process the surfaces of the walls and the ceiling (with the ceiling zone) is a volume of 5 and 10 liters. If the plot is small, the volume is enough for processing 5 liters. As a rule, the surface before sticking with liquid wallpaper is processed twice. The first time the material leaves more, as often the walls have a large absorption. Second layer of soil will be economical.
A distinctive feature of primer is different color and consistency. The color of the material can be transparent, white, light gray and pinkish. To strengthen the walls, it is impossible to use color primer, especially if the color of the selected wallpaper is light. For surface treatment, it is better to use the preparatory raw materials of two types: transparent and white.
A transparent primer is applied to the surface immediately. White will allow to see where the processing was carried out and lines the tone of the walls, masking different stains. Especially relevant in the event that blending of liquid wallpapers is planned for a dark concrete basis. At the same time, the facing material will not be applied by a spatula or spatula with a large nozzle.
To date, in the construction goods market, the primer is presented in a wide range. This material does not save walls from serious problems. The primer is applied to the base only after all the cracks are smeared, bumps aligned and removed visually noticeable pits. If you ignore this preparatory process, during the execution of the adhesive will take more liquid wallpaper, and their layer of application will be uneven, which can be visually noticeable.
The use of primer before pasting is not only reliably connect the facing material with the base, it will allow and simplify the finish process. It will save overlap from high absorbity, while performing pasting, it will be easier to carry out the adjustment. The mass of liquid wallpapers will not instantly dry, which will allow it to distribute it on the surface of the wall with a dense uniform layer.
The greater the penetrating ability of the primer, the better.
Application of primer before pasting surfaces of walls with liquid wallpaper reduces raw material consumption. This composition isolates the problem areas of the planes, for example, with metal reinforcement, so on the surface of the finished cladding, rust stains will not appear on the surface. Framed after processing the walls of the ground layer of the film will allow you to keep enough heavy types of liquid wallpaper on the surface. Trootage applying to the walls will allow to disguise and isolate a spotted base.
From the mass of varieties can be allocated Three categories of primer, which can be bought for processing walls in front of their facing with liquid wallpaper:
- Special (by type concrete contact).
Good primer capable of aligning slightly flaws. Acrylic variety is quite popular. This primer is characterized by good viscosity, the film formed on the surface after drying is quite durable. Such soil dries optimally quickly, in the process of work does not highlight unpleasant odor, suitable for internal work. When drying, it forms a polymer crystal lattice on the surface, which provides sufficient level of adhesion.
The universal analog is notable in that it took from each variety of gradually. Therefore, such a primer has penetrating, strengthening and leveling abilities. However, its action is not so pronounced, as in separate categories. Its penetrating ability is less: such a soil penetrates the base of the base no more than 0.5 cm.
The best choice for preparing the surface of the walls under the mixture of liquid wallpaper is a primer under concrete contact. Its distinctive feature is the presence of a mixture of quartz sand, due to which, when drying, the surface acquires some roughness. This fact provides the maximum adhesion of liquid wallpaper with the treated surface. This feature is explained by the fact that too smooth base complicates the process of pasting (liquid wallpaper is worse distributed over the surface and can roll). The presence of roughness on the wall detains the adhesive mass, it is much easier to lay out the desired pattern from the material of different color.
Subtleties of choice
The type of soil depends on the type of liquid wallpaper used. It is unacceptable to buy the first thing that will appeal on the counter: the choice should be solid. It is important to take into account not only the brand of manufacturer: it makes sense to buy a soil with an antiseptic effect. Due to this, the surface will be reliably protected from education environment for the appearance of fungus and mold.
When buying, pay at the mark “Deep penetration”: Such primer will more thoroughly prepare the surface to carry out finishing works. It will make the base homogeneous, reduce porosity and strengthen the walls. Experts recommend handling the walls with a material of two species – transparent and white. Despite the fact that the primer can be painted with a regular color, do not experiment with color, so you distort the color of the intended cladding.
If the walls are planned to be saved with white or light liquid wallpaper, in the preparation process, use white primer twice: it disguises the problem areas of the walls better than. Due to the color in the process of operation, this material is visible every processed area. This will allow to process the surface with a uniform layer: a film grille formed after drying must be uniform.
Buying material, pay attention to the purity of the color, it must be perfectly white or transparent (without impurities of other shades). Consider the nuance: high-quality primer deep penetration costs more than ordinary analogs. When buying, look at the expiration date: at his passage, the material loses its properties. If repair work is not planned in the near future, and the shelf life of the selected material comes to an end, this material is impossible to take. If you use an overdocked primer, adhesion will not be sufficient.
If the base is problematic, you need a primer for surfaces of a porous type. Carefully read the features of the use of primer indicated on the labeling. Not every soil is suitable for treating dark surfaces.
It is necessary to buy primer strictly in accordance with the application area and the type of surface treated surfaces. If there is a question of choosing a specific brand, you can pay attention to the products of Ceresit, Knauf, Silk Plaster. Sometimes there is a label “for silk decorative plaster” (liquid wallpapers based on silk or paper fibers).
How to use?
So that the surface treatment process before pasting liquid wallpaper has not caused difficulties, you can use a small instruction. In front of the workflow, a roller is prepared, a flat brush of medium size, gloves, work clothes, a stuffing solution container.
The work algorithm will be:
- The composition is poured into the prepared container, the dry mixture is bred according to the instructions on the package.
- Take a building roller, impregnate it in a primer solution, slightly pressed and rolled over the surface.
- It is necessary to primitive, evenly distributing the composition. At the same time, it should not flow along the walls, forming a puddle on the floor.
- In hard-to-reach places, a flat brush is used: it will allow the processing of the corners, the stakes of the ceiling and the walls are more neat, not overwhelming the solution.
- If the walls are poorly absorbed the liquid, rolled the roller several times one and the same area, then go to the next. At the same time, for each site, a new portion of fluid is added.
- At the end of processing, the tools are thoroughly washed, because if the composition remains, it will load, the brush and the roller coat will have to throw out.
The second layer of primer is applied only after the first dry. It is not worth violating the technology of the process and hurry: this may affect the level of adhesion. After applying the second layer, it is worth waiting for a day and only after that begin to stick the walls with liquid wallpaper. Dry walls do not stick to the touch.
What else to consider?
In order not to doubt what kind of primer to choose to prepare walls to pasting pasty liquid wallpaper, pay attention to the information indicating the additional properties of the soil.
Walls from drywall need to be treated in deep penetration, Starting from connecting sheets. No means before this will be the processing of connecting fasteners enamel or acrylic paint.
Processing wooden surfaces or walls based on extruded wood is necessary soil with waterproof properties. If the wooden wall under the liquid wallpaper is not processed, use a solution based on the shellac: it will not allow to appear on the surface of resin spots.
If possible, consider paint from the surface of the painted base and handle it with anti-grapple composition. If the wall has metal mounts, treat it alkyd primer or phenol-based material or glyftala. For concrete it is better to use ground under concrete contact.
If there is no quartz sand in the store, making the surface of Schelava, you can buy an ordinary deep penetration soil and add fine-grained seeded river sand. It is not necessary to replace this material for the primer of homemade preparation created from the water-demulsion paint with the addition of plow glue. The composition of this material is different from what trademarks are developing. The components of the primers are designed in a special way, the necessary components are balanced to strengthen the walls from the inside, which does not have homemade compound.
In the next video, you will find instructions for the preparation of the surface for applying liquid wallpaper.