How to cut Knauf Polymer Finish. Tools necessary for work with GVL

Four categories of quality preparation of the surface from KNAUF: Systemq1-Q4 system

You rarely meet a person who would believe that his repair was perfect and he did not spend a single penny in vain. Usually the opposite. Several times remade one, another, third The builders did not paste the wallpaper so much, plastered the walls, put a skirting board. How many customers received high estimates from builders, who, without blinking an eye, said that under ceramic tiles they had a perfectly even coating laid down using the technology. hence such amounts. And how many builders in their hearts left the object, without proved the customer that they prepare the surface under an expensive finish coating with expensive materials, This is required by technology! Both sides can be understood. the finish finish is the most important stage of construction or repair, in addition, all decorative materials have different surface quality requirements. Just a flat wall is prepared under the tile (small flaws will not be visible anyway), the wall for painting should be impeccably flat, and on the basis of thick wallpaper you can leave small defects. But the problem is that the customer has his own idea of ​​“impeccably even” and “small defects”, and the contractor has his own. And the results of compromise solutions, as a rule, do not suit any of the parties!

KNAUF has developed the Q1-Q4 system-a special classifier of the quality quality of surface preparation for various finish coatings using its own building mixtures and leaf materials. Q1-Q4 became a “coordinate system” for the interaction of all participants in the construction process. The subjective idea of ​​the quality of the surfaces was replaced by objective, easily measured parameters that do not leave space for discrepancies.

“Q” in the name of the category-abbreviated “Qualitat”, which in German means “quality”. The system was developed in Germany and harmonized with construction standards (SP 71.13330.2017).

The Q1-Q4 system distinguishes four categories of quality preparation of the base for different finish coatings (and, both on the basis of KNAUF-lists and on the basis of plastering mixtures) and at the same time prescribes the regulations of work; It serves as a cheat sheet, which will allow the customer far from construction and finishing processes to understand and control all the stages of the process.

Advantages of using the Q1- Q4 system:

  • It has become easier for the customer to set tasks for the builder, participants in the process 100% understand each other;
  • The customer can control the builder using the “cheat sheet”. in a detailed technology for performing the work on preparing the surface for a certain material;
  • Time saving. the need for constant clarifications, discussions and approvals disappears;
  • Lack of unnecessary operations-the builder should simply clearly follow the sequence of actions prescribed in Q1-Q4 to prepare the surface for the selected “finish”;
  • Saving money. Extra operations are always unnecessary costs, so Q1-Q4 protects against unnecessary waste of funds;
  • Confidence as a result. Even before the start of work, the customer will know what result he will get.

The Q1. Q4 system provides for the following types of finishing surfaces and the category of preparing the bases for them:

Category Q1

Finishing: ceramic tiles, decorative cladding, decorative plaster with grain of more than 2 mm.

Шпаклевка Knauf Мульти-Финиш

This level does not make requirements for the decorative properties of surfaces, allows a vertical deviation of 3 mm into two linear meters and excavations and scratches up to 3 mm deep.

Finishing: structural, vinyl and liquid wallpaper and decorative plasters with grain from 1 mm.

Requirements for defects of the surface are tightened: their dimensions cannot exceed 1 mm, only then the surroundings of the surface will be invisible under the decoration.

Finished finish: matte paint, thin wallpaper, decorative plaster with grain of less than 1 mm.

Such a finish requires high quality surface: seizures, bullying, puttying of putty and instrument prints, the size of the permitted recesses and gaps does not exceed 0.3 mm, and the shadows from the side light should be significantly less than in the Q2 category.

Category Q4

Finished finish: metallized wallpaper, Venetian plaster, semi.glossy paints, mother.of.pearl and varnish coatings.

This is a premium level of quality: there should not be the slightest flaws and shadows on the surface in the side light. The wall should be flawlessly smooth.

Выравнивание стен шпаклевками Кнауф

Q1-Q4 system based on sheet materials

Cancels the traditional approach to the preparation of walls for decoration. Since the customer has no doubt that he will receive the right surface quality, he begins not with the preparation of the wall, but with the choice of the finish coating and already buys finishing materials for it.

If the option of creating a surface of one of the categories of Q1-Q4 based on sheet materials is selected, then:

To create a surface of category Q1

KNAUF-listen joints are processed by putty KNAUF-puggen with a reinforcing ribbon or putty KNAUF-UNINIFLOT and KNAUF-UNIHIRARD (they are made of high-strength gypsum with polymer additives and do not require reinforcement, with the exception of the wiped edges).

To create a surface of the Q2 category

The putty joints of the putty on the knauf lists are aligned with an additional layer of Knauf Fugen, Knauf Uniflot or Knauf-Unichard.

What do we need

To perform work to level the surface of the walls, we will need:

grater for grouting with mounting paper;

plastering cell for applying the solution;

Maular roller for applying a primer penetration;

plastering ironing iron from polyurethane foam;

sandpaper fine and medium grain;

Polyethylene film to protect the flooring of dirt and accelerate cleaning time.

Of the additional materials that are not included in this list, you will need a primer and rollers to apply it.

Before you start putting the walls, you need to prepare the surface. If the walls are already plastered, they should be even and without depressions and protrusions. If we are talking about the repair of old walls, then you need to remove the old finish, whether wallpaper or paint, evaluate the condition of the old plaster layer, if necessary, it will need to be knocked down and re.whistle the walls. If the walls of the house are erected from brick, plaster is necessary if it is from reinforced concrete, then with more or less even walls it is possible to do without plastering work.

The primer of the base

Before putty in the first basic layer, any surface, whether it is fresh plaster or an old wall coating, it is necessary to primer. This is a very important stage, on which the quality of the adhesion of the putty layer and the finish layer to the base of the wall depends. A primer of deep penetration, penetrating into the plastered layer, fills all cracks with an invisible film and partially eliminates the microsion of the surface. You can apply soil using a sprayer. Or pour liquid soil into a construction bath and, dipping a brush or roller, cover with a primer composition of the wall. If the base does not differ in reliability, especially if it is an old housing stock, a primer can be applied to 2 layers, while strengthening the surface as much as possible. It is important to remember that before the subsequent application of putty, you need to dry the wall at least 6-8 hours. And only then can you safely move on to the level of alignment with polymer putty.

After checking the evenness of the walls and the absence of irregularities, you can proceed to the knead of a dry putty mixture. We want to warn if you are engaged in such things for the first time and do not have experience in the past with dry building mixtures, then it makes sense to make the first 2-3 kneads by trial, gradually adding the amount of dry putty, this will warn you from damage to the residues if you can’t have enough quickly spin the whole knead, and will teach to correctly determine the desired density of the mixture. For a convenient set of dry mixture from an industrial bag, we recommend using a stucco bucket, which without dust and waking up will gain the required amount of putty.

Working with dry putty knauf polymer finish is quite simple. In a pre.prepared container, pour water, add a dry mixture and mix. Standard calculation: 7.5 liters of water per 20 kg of dry mixture. It is convenient to knead with the help of a construction low-cost mixer, and in its absence, a drill with a nozzle will help. Must be stirred to a state of homogeneous thick sour cream. Putty should easily be removed from a spatula or cell, but should not drain on it on its own drops. It is important to achieve all the lumps to stir so that the solution is the same in color and composition. After the first batch, the solution should stand for 10 minutes, then it must be mixed again, ragging all the lumps, if any. The mixture is ready for application.


Knauf Perlfix gypsum glue has excellent properties corresponding to the high quality of all products. Increased life, which is more than twenty years, is one of the consequences of this quality. The level of setting with concrete is 0.6 MPa. The presence of gypsum in the composition provides higher strength when compressed 10.9 MPa, and with a bend of 3.4 MPa. Thanks to thirty.minute capturing, plasterboard sheets can be adjusted using the construction level.

The mixture is available in packages weighing 15 and 30 kilograms, which is very convenient. It is necessary to store it only in a dry place, since it includes gypsum. It is better to store the mixture on wood pallets to contribute to optimal ventilation of bags. This is also done to prevent the dumping of dry composition in conditions of high humidity. In case of damage to the package, transfer the mixture to a whole bag, and then put back in the bag. The shelf life of open packaging is six months.

Pros and cons

KNAUF Perlfix glue has both a large number of advantages and some disadvantages that should be taken into account when buying. One of its main advantages is the environmental purity of the mixture, as well as the lack of toxic odor, which makes it safe for health. When using glue, repair work is used much faster and easier. Due to the absence of the need to use a hammer or a pedorator to hammer nails and screws, your repair will be absolutely silent and economical, since you will not have to spend money on additional tools. The composition is applied with a special ribber of a ribbed shape either immediately on the entire surface, or cakes.

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

The huge advantage of KNAUF itself is the availability of quality certificates for each of its products, which guarantees the high quality of all goods, as well as thorough control at different stages of manufacture.

However, the adhesive mixture has several disadvantages, one of which is a long time to dry out for a week. This characteristic is associated with the components that are part of the glue of KNAUF. After drying, the 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 sit the material. During this period, it is necessary to postpone any putty work to prevent cracks.

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

It is only ten minutes, and sometimes five. The glue is enough in a short time, which loses plasticity, which is why any changes in the imposition of sheets, the elimination of cones or pits that have appeared should occur in a short time. After ten minutes, all your efforts will be in vain, since the mixture will no longer last. Despite such a rapid capture of the product, it will finally harden only a week later. For the bag.

Universal Knauf Rotband

It can be used not only in dry rooms, but also in wet. The main thing to prevent water to get on a putty wall.

Knauf Rotband Pasta

One square meter consumption. almost half a kilogram of pasta. If the thickness of the layer is 0.3 mm. The consumption is more economical in comparison with the loose options.

Application tips

First you should purchase all the necessary tools for applying putty to the surface:

  • For stirring, a drill with a special nozzle or a mixer intended for construction purposes is ideal;
  • 30-centimeter spatula;
  • a small spatula in size from 5 to 10 cm;
  • angular spatula;
  • brushes and rollers;
  • sandpaper;
  • For work on the upper parts of the wall or with the ceiling, a ladder will come in handy.

For applying the finish putty, you can use two methods:

  • The finished solution is applied to a large spatula with a small one, then the mixture on the wall from the bottom up. The tool should be pressed as tightly to the surface, the action should be carried out several times. The surface becomes as flat as possible. The remnants of the mixture are returned back to the bucket. Further, using grinding, roughnesses are smoothed out on the wall.
  • This method is longer, since it consists in the double coating of the wall. The finish putty is applied to the surface with small strokes, then they proceed to re.applying the material. This method guarantees the creation of a flat surface, so much less time will be spent on grouting.

To perform work in the corners, you should use an angular spatula. It allows you to work where the walls converge at right angles. If the angle is different between the walls, then it is better to use a small spatula.

The finish putty on gypsum structures is quickly applied, since such sheets are quite even.

In order for the process of applying putty to the surface to occur quickly and efficiently, you should adhere to the advice of specialists:

Rules for cutting plates without chips

The panel is cut with a knife in a few passes. Consistent cuts are made along the intended line until the stove is cut 2/3 of the thickness. After that they break the sheet so that it is divided into two parts. Before work, choose the surface where the cutting will occur. It should be a platform with a flat plane. A wooden rail with a thickness of 20. 25 mm along the entire cut length is placed under the planned fishing line for a trimmer. The blade of the disk lead evenly, without shifting from the features, it is not recommended to rush when working.

The option of cutting using a hand tool, for example, a knife, cutting is most often used. The power tool will dust. With a small amount of work, you can do with simple devices.

Squeezed of work:

  • put the sheet on a flat plane, you can cut the upper sheet on the package without removing it;
  • Marking is applied on the panel, a rule is applied along the line, it is well pressed;
  • along the line with effort is cut several times, trying to evenly immerse the blade;
  • A bar is placed under a fishing line for a trimmer;
  • The edge of the stove is lifted, broken along the line, dividing into parts.

If you need to make a fold on a straight edge, use a cutting knife or chisel. On large volumes they operate with a milling mill with a 4 mm groove cutter. To fit the pieces of GVL, a peeling rubbish is used at the place.

Ready putty Knauf Rotband Pasta Profi

RotBand Pasta Profi has an option that is made in finished form, which means that it is not required to dilute the composition with water before work. The manufacturer produces a solution ready for application immediately, which is characterized by the necessary density and is easily distributed on the basis. A thin coating is created, characterized by snow.white color.

Many are wondering that it is better than Rothband or Vetonite, but here you need to understand the technical characteristics and features of working conditions. The pluses of this brand will be considered below.

The manufacturer produces a solution ready for application immediately, which is characterized by the necessary density and is easily distributed on the basis.

Areas of application

The putty finish KNAUF Rotband Pasta Profi is intended for applying the finish layer for internal work, isolated by the possibility of use on the following materials:

Performs the final stage before the wall decoration with wallpaper canvases, tile material, paints, panels made of wood.

Not used to process joints between drywall sheets.

The dry type of mixture is characterized by a pinkish tint, due to the presence of minerals in it, which affects the purity of the mixture. In the finished form, a solution is available with a volume of 5 kilograms. A dry type can be produced weighing from 5 to 30 kilograms.

Putty KNAUF PASTA PASTA PASTEL PASTENT is intended for applying the finish layer for internal work.

Pros and cons of use

To decide which composition is better to choose among many options that are represented in the construction market, it is worth evaluating the advantages and disadvantages of putty. Among the advantages of Rotband, putty is the following:

  • Consists of small fractions. 25 microns;
  • High level of plasticity;
  • High degree of adhesion;
  • Can be applied in a machine way;
  • You can freeze and defrost many times without loss of characteristics;
  • Increased whiteness;
  • Creation of smooth coating;
  • Good strength of the layer.

Minuses note the short expiration date, the composition can be stored only six months. A small shrinkage is also noted, for this reason it is recommended to make a two.layer coating.

Creates a smooth coating.


This type is used in both cases. Since it combines the properties of decorative and basic, this can directly affect the quality.

KNAUF-polymer finish

Polymer binding mixture with high adhesion. Plastic and stand for the formation of cracks. Can be applied to concrete coatings, drywall, plaster, from the floor. up to 4 mm. Contains micro.fiber. Operating for 72 hours. You can paint or glue wallpaper after completely drying out. It is used inside as a finish thin layer, as well as the basic putty. It is easily dismantled by the skin. You need to work in temperature mode from 10-30 ° C. Putty.

Consumption For a continuous layer of 1.2 kg/kV.m
Layer thickness, mm 0-2
The size of the fraction (grain) no more than 25 μm
Complete drying time 1 mm Day
Packing Paper package 20 kg
Shelf life 12 months. in a tight.sealed container


Unlike the previous one, the hydraulic fuel fuel is in the composition of hydrophobic additives. For sealing seams and installing plasterboard and gypsum sheets. The putty is designed for internal work in wet rooms, does not shrink. Layer thickness from 1 to 5 mm. Cave in a proportion of 1.3 liters per 1 kg of the mixture.

With continuous puttying with a layer of 1 mm: 0.8 kg/m2


Sealing the joints of plasterboard thin and having a semicircular edge of the sheets (GKL), occurs using a reinforcing tape. It smashes cracks, suitable for putting both concrete and prepared using wall plaster. Can be used as an adhesive base for drywall panels. Designed for interior decoration with a layer of 0.1-0.5 cm.

Price 113, 203 and 414, depending on the volume.

Polymer putty Knauf

Polymer puttys are of great elasticity and adhesion. They are easily applied to the surface of the wall, hiding minor disadvantages and covering it with a thin waterproof film.

Polymer putty protects well from fire, tolerate significant temperature fluctuations.

  • They are durable and durable.
  • Not afraid of sunlight, atmospheric influence.
  • Suitable for external work.
  • Disadvantage. high cost.
  • This series of finishing materials is represented by putty Knauf-polymer finish.

Dry and ready.made Knauf putty

The previously mentioned finishing materials are produced in a dry form. Their cost is much lower than ready.made. Also a longer shelf life under the correct storage conditions.

An important disadvantage of moisture. Dry mixtures must be stored in dry rooms.

Moisture will lead to their rapid hardening and damage. When storing finished puttys, special caution is not required.

  • It is only important to remember that one should not harvest a putty “in the future” long before the repair work, without calculating the amount of material for the coating area as much as possible.
  • Putty with a complete shelf life is not applied. No need to store the remaining materials after the repair. Having made as quickly as possible the decoration of the room, unspoken dishes with the finished putty can be handed over.
  • Many stores allow this opportunity when promptly performing finishing work. With dry. more difficult. there is no guarantee that it was stored without moisture. But, you can try.

The main thing is not to delay using this material, thanks to which beautiful even surfaces for staining or gluing wallpaper are obtained.

Ready.made KNAUF products are represented by the following finish species:

Materials for the internal and external decoration of the KNAUF premises, among which there are special means of increased strength in order to hide the seams and joints, starting, finish putty, etc.D.

Primers and other building materials necessary to create beautiful even walls in any room are suitable for integrated use.

I will not have to waste strength, time in search of additional funds. As they say: “Street friend is better than new two”.

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