There is a huge selection available todayvarious finishing materials, including for decorating walls. However, wallpaper is still at the peak of popularity. The only thing is that their range has expanded significantly. They differ not only in their color, but also in the material.
When preparing glue, one must not forget that,that thick wallpaper requires more glue. And if you decide to decorate the walls with wallpaper, you should also decide on the glue for attaching them. How to choose the right wallpaper glue? What should you consider when purchasing it?
Types of wallpaper glue
There are currently several types of glue. The main types are as follows:
Characteristics of dry wallpaper glue.
Adhesive for paper wallpapers. This formulation includes modified starch and special antifungal components. The mixture is very easy to prepare. A dry mixture is poured into the cool water (in the required quantity) and mixed thoroughly. Then all this should be left for 3-5 minutes, thoroughly mixed again. After that, the mixture is completely ready for use. It is recommended to apply the product on a piece of cloth and wait for 1-2 minutes, which will ensure better adhesion to the wall surface.
Special purpose glue (for gluingfabric and non-woven wallpaper). For gluing vinyl and non-woven types of finishing, a mixture consisting of modified starch, antifungal components and methylcellulose is used. Preparing the composition a little differently. A dry mix is poured into the prepared container, filled with cool water, and everything is thoroughly mixed. The solution is left for 10-15 minutes, after which it is re-mixed. The composition requires more time for swelling, which should be taken into account. Adhesive is processed all the canvas, after which you need to leave it for 2-3 minutes for better absorption.
Universal adhesive. This type of glue also consists of modified starch and antifungal components. The composition is mixed similarly to others, however, it is worth considering the type of finishing material. For different wallpapers it is necessary to take different proportions of a dry mixture and water.
Antifungal components included in the adhesive provide reliable protection against the occurrence of various fungi, mold, and dampness. Return to contents</a>
How to choose the glue for wallpaper?
The quality depends on the correct choice of gluefastening wallpaper to the wall. As a rule, the finishing material itself indicates recommendations on the use of a particular composition, the method of its application. For paper wallpaper, you should use paper glue, which can be understood from the name of the composition. It is easy to use, easy to mix. At the same time, the quality of holding the material on the walls is very high. But it is worth remembering that this type of glue can only be used for paper wallpaper. Universal glue is best chosen if you plan to combine several different types of wallpaper. You should also opt for this type of composition if the finishing material itself has not yet been purchased. However, it is still recommended to purchase glue together with the wallpaper. When buying, you should also consider the amount that will be required to paste over the entire room. The average consumption per 1 square meter is usually indicated in the instructions for use. As a rule, the composition is applied both to the wallpaper itself and to the wall. However, there is also a type of wallpaper that requires applying glue only to the wall. To improve the adhesion of wallpaper to a brick or concrete wall, it is recommended to pre-treat the surface with a primer. Return to contents</a>
Main factors
When choosing glue, you should also pay attention to its characteristics. The main such indicators include the following properties:
Scheme for applying glue to wallpaper.
Adhesion. Good adhesion ensures excellent adhesion of wallpaper to the wall surface and, consequently, gluing of the material. The best gluing is provided by a composition whose viscosity (or consistency) is 18-20 seconds. The value of the adhesion force is provided by the composition of the mixture. The best adhesion is provided by glue based on methylcellulose. It is this composition has a special glue for gluing heavy types of finishes. If you need ideal adhesion capabilities, then you should add polyvinyl acetate, or simply PVA. This is especially true when gluing walls with vinyl, metallized or embossed wallpaper.
Acid-base value. The optimum value for this parameter is pH 6-7. If the index is higher, then there is a high probability of the appearance of yellow spots on the finished walls in the future. This is undesirable when using light-tone finishes. The acid-base value of glue based on methylcellulose, as a rule, corresponds to the norms, but the mixture based on modified starch has an overestimated pH.
Fungicidal and bactericidal additives. Modern adhesives contain such additives that increase the level of protection of surfaces from the occurrence of mold and fungi. However, in some formulations such additives are not available. Therefore, attention should be paid to their presence in the mixture.
Moisture resistance. If the wallpaper will be stuck in a room with high humidity, it is recommended to choose a special moisture-resistant glue. The mixture must necessarily include PVA.
Finally, it is worth noting that wallpaper gluecan be sold ready-made or dry. The first option is a little more expensive. However, if you do not have the skills to work with dry compositions, you should choose the ready-made option. In addition, they are often sold in a container that makes it easier to apply the solution to the surface. Those who are not engaged in this finishing work for the first time, it is better to choose a dry mixture. It is cheaper, stored longer.
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