KNAUF PERLFIX Glue: pros and cons

Repair work implies the use of a sufficiently large number of mounting components. As a rule, nails are used, but they are not always the best solution for surfaces such as plasterboard. This material is very thin, and the holes for nails can harm him. Professional masters recommend using special installation glitter in working with drywall, which will be beneficial both with practical and from an economic point of view.

One of the best in this niche is the glitter for drywall Knauf Perlfix, it is an excellent alternative to nails and self-draws.


Knauf was created in the middle of the last century. A small company quickly turned into a huge concern for the production of building materials due to the responsibility of owners and careful quality control at each stage of production of products. Today, Knauf is one of the leaders in their niche, their goods are presented worldwide.

Perlfix glue is one of the most purchased products. The main task of the product is the frameless surface coating with sheet materials on a plaster basis. There are only two types of adhesives, differing from each other in both the ingredients and the level of clutch with the surface: the usual Perlfix and Perfix GW.

A simple mixture is made to cover the bases of plasterboard, and with an additional drying – for GVL.

The coating material is rigorously important, as this mixture is perfectly combined not only with plaster, but also with concrete and brick, it is important only to correctly pick up the ground. For example, in order to glue the plasterboard to the base of concrete, conconant should be taken, in the case of plaster or lime plaster, you can take a simple mixture of deep penetration. KNAUF glue is also suitable for working with insulating materials, such as polystyrene with extrusion or Master.

Use Perlfix only for internal works. The composition is perfectly applied in warm, and in a cool room, but it should be remembered that the level of humidity in the room should be higher than the average. You can glue them not only drywall, but also matte plaster tiles, foam, mineral wool and expanded polystyrene. Try to prevent any direct water from entering the applied mixture. It is forbidden to process the wet surface with glue, as it can damage the adhesion.

The gypsum mounting mixture is sold as ready for applying a dry product, so there is no need to apply any additional ingredients.

In the case of repair work under special conditions, the company manufactures products that differ from the basic glue. Their composition involves applying for non-standard surfaces.


KNAUF PERLFIX gypsum glue has excellent properties that match the high quality of all company products. Increased service life, which is more than twenty years, is one of the consequences of such quality. Catching level with concrete is 0.6 MPa. The presence of gypsum in the composition provides a higher strength in compression of 10.9 MPa, and with a bending of 3.4 MPa. Thanks to the thirty-minute grasp, you can adjust drywall sheets using a construction level.

The mixture is produced in packages weighing 15 and 30 kilograms, which is very convenient. It is necessary to store it only in a dry place, because its composition includes plaster. It is better to store a mixture on wood pallets to promote optimal ventilation bags. This is done and to prevent the dumped compound in conditions of high humidity. In case of damage to the package, you should transfer the mixture into a one-piece bag, and then put back to the package. The shelf life of open packaging is six months.

Pros and cons

KNAUF Perlfix glue has both a large number of advantages and some minuses that must be taken into account when buying. One of its main advantages is the ecological purity of the mixture, as well as the absence of toxic smell, making it safe to health. When using glue, repair works are much faster and easier. Due to the absence of the need to use a hammer or a perforator for clogging nails and self-tapping, your repair will be absolutely silent and economical, as you don’t have to spend money on additional tools. The composition is applied by a special spatula of a ribbed form or immediately to the entire surface, or with cakes.

The big plus of this product is both the versatility of use, it works great with different materials. Some masters use it during insignificant putty.

The huge advantage of Knauf’s company itself is the availability of quality certificates for each product, which guarantees high quality of all goods, as well as thorough controls at different stages of manufacture.

However, the adhesive mixture has several minuses, One of which is a long time of drying, which is a week. This characteristic is associated with the components that are part of KNAUF glue. After drying, glue becomes very durable and provides reliable fastening for many years. During this process, that is, all seven days, the composition will increase the level of strength and how to plant material. In this period, it is necessary to postpone any places for preventing the appearances of cracks.

Another feature of Perlfix is ​​a short time to adjust the blocks of GCL or GVL.

It is only ten minutes, and sometimes five. The glue is enough in a short time loses the plasticity, which is why any changes in the laying of sheets, eliminating the appeared cones or the fumes should occur in a short time. After ten minutes, all your efforts will be vain, since the mixture will no longer reach. Despite the rapid grasp product, it finally hardens only in a week. The cost of this product is quite democratic and is 300-350 rubles per bag.

How to use

Before you start working with KNAUF PERLFIX glue, it is necessary to determine its flow rate on the desired surface. According to the instructions, the consumption of mounting composition for drywall is 5 kg per 1 m² when processing the GLC and GVL surfaces, in the case of working with the PGP, the flow rate will be 1.5 kg per 1 m². However, in practice, the consumption of funds can be a little different, it all depends on the masters’ experience. Professionals who have already been pretty stuffed on the installation of the puzzle tile (PGP), are applied to the surface a bit of the diluted glue, so that after the lining of the sheet of the junction, a little. Newcomers in the construction sphere do not like to save the mixture, thinking that it is bad, and a lot of glue is applied, which is why there is a large amount of excess composition.

Here it is necessary to take into account the fact that the work occurs with plaster, and not conventional glue or cement. If in the second case, you can remove all excess with a spatula and put them back into the container, then in the first – it is impossible to do so, because the mixture collected from the gypsum will greatly reduce the life of glue. He just dries right in the bucket about fifteen minutes, which will entail overrun. But thanks to the ease of use, you can quickly and easily learn how exactly the amount you need to prepare the mixture and impose on the processed base.

The consumption of the mixture for GLC is more accurately calculated taking into account the irregularities or roughness of the base.

One of the main conditions when working with PERLFIX glue is the level of temperature mode that should not be lower than +5 degrees. When working with a product weighing in 30 kg, you will need 16 liters of water.

Working with glue KNAUF Perlfix is ​​performed in the following order:

  • First you need to clean the wall from dirt, dust and delay;
  • In the case of working with the GCC, it is necessary to brand the wall, preferably the primer of the same brand as the plasterboard itself;
  • make the process of mixing the mixture, usually it is done in plastic containers;
  • Dry mixture is added to the water in a 1: 2 ratio;
  • stirring recommended by a construction mixer, as a result, a mixture should be turned out without lumps, slowly similar to sour cream;

  • In the case of a strong lumber or liquid state of glue, you need to add water or dry product, respectively. Professional wizards not mistaken, add the mixture gradually, simultaneously stirring. This allows control of glue consistency;
  • It is necessary to use the resulting mass for thirty minutes, therefore it is desirable to make small portions that will be used during this time;
  • impose perlfix recommended point, making distances in 30-35 centimeters;
  • If the plasterboard is less than one centimeter thick, glue is applied along the midline in a row, when working with a thickened sheet, it is applied in two rows throughout the plane;
  • Sheet gently applied to the wall in the bottom upward, and then align.

KNAUF PERLFIX glue possesses optimal plasticity and clutch level with materials. He shows its properties perfectly when working with puzzle plates and frameless foundation. Democratic product price and large volume allow you to spend less finance for repair work.

On how to glue drywall on Knauf Perlfix glue, look next.

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