Primer Knauf: properties and application

The primer of the walls and floor is carried out during construction for reliable adhesion of finishing materials to the wall surface. When choosing a primer, you need to pay attention to its technical characteristics and composition. The type of surface, humidity in the room, a further method of decoration are taken into account.

Knauf offers a range of mixes for every need. The popular deep penetration primer Tiefengrund Knauf. It strengthens the surface of the base, reduces its ability to absorb, improves the adhesion of the finish. Due to its increased penetration ability, it is suitable for fine pore materials.

About Knauf

Tiefengrund Knauf is a universal primer suitable for both exterior and interior use. It dries quickly, has no color, no specific smell. Provides deep penetration into the surface, completely safe for others. Penetrating soil does not contain plasticizers, solvents. The composition contains fine particles of artificial resins that are resistant to saponification.

The primer is applied evenly to the surface, after drying it provides good adhesion to paint, glue and other finishing materials, which reduces their overall consumption, which means it saves money on the purchase of building materials. After surface treatment, a protective layer is formed on it, preventing the development of mold, fungus, corrosion, small building blemishes, cracks and chips are hidden, the surface continues to breathe and allow water vapor to pass through.

Knauf primer is used for pre-treatment, strengthening surfaces, including brick, concrete, plaster and so on.

The primer must be used throughout the year from the time of its manufacture. Keep the container with the composition in a closed state at an ambient temperature above zero. Freezing soil is prohibited.

Areas of application for the primer Tiefengrund Knauf

The use of a reinforcing mixture improves the adhesion of the finish to the following surfaces:

• gypsum plasterboard and gypsum fiber sheets,
• gypsum and cement plaster,
• gypsum tongue-and-groove plates,
• plaster of cement and gypsum.

The penetrating primer is applied before painting the walls, laying floor or wall tiles, tiles, before filling and wallpapering. It is used for interior and exterior use, in the decoration of facades.

Advantages

Advantages of the Tiefengrund Knauf primer.

• It is not dangerous, does not emit toxic substances into the environment.
• It is colorless and odorless.
• There are no solvents in the soil.
• A 10-liter bucket is enough to handle 100 m2 of various surfaces.
• Designed for weak substrates, strengthening, protecting them from self-destruction.
• Not afraid of temperature and humidity differences in the environment.

• Country of origin - Germany, there is a certificate of conformity with GOST. Quality control of production is ensured at each stage by the company itself and independent experts.
• It dries quickly.
• Increases the adhesion of surfaces, increases their density and strength.
• Provides full air exchange and vapor permeability.
• Reduces finish consumption.

The advantages of choosing Knauf Tiefengrund are the technical parameters.

Technical Specifications of Tiefengrund

The final consumption of primer per 1m2 depends on the type of surface, tool and the number of layers applied.

Certificate of conformity

The manufacturing company Knauf has a certificate of product compliance with high standards of European quality. The document indicates that the soil was subjected to all the necessary research, control, which ultimately confirmed the conformity of products to GOST.

The certification of the composition was to:

• selection of material for laboratory research,
• analysis of production and manufacturing processes,
• certification by indicators.

After all control studies, the composition is labeled and certified.

The spread in prices is large, the cost is formed depending on the region, the volume and quantity of units purchased at a time.

1. On average, in the Moscow region a 5-liter can is bought for 400 r.
2. A bucket of 10 liters will be more expensive, its price exceeds 845 p.
3. For wholesale buyers in construction offline / online stores, they often organize promotions, under the terms of which when buying from 20-30 buckets the cost of 1 kg of the mixture will not exceed 40 p. Soil has a wide range of applications and is useful at all construction sites.

Application features

Regardless of the choice of primer mixture, it is important to properly prepare the surface. Before applying it, the treated surface must be cleaned and degreased. If there are any remains of old paint, varnish or any other finish on the wall or ceiling, they must be removed, washed and dried if necessary.

The can is carefully opened, its contents are diluted with water in a ratio of 1: 1. To check whether the degree of dilution of the soil is suitable for the base on which it will be applied, you need to make several test strokes. Testing will help evaluate how many layers the mixture needs to be applied.

The manufacturer does not recommend the use of soil on surfaces coated with a glue-oil composition.

Tiefengrund can be applied with a roller, brush, sprayed with a spray gun or spray gun. Immediately after the first layer, you need to apply the second, without waiting for drying.

It is necessary to ensure that the consumption rate of the mixture is not exceeded, this will lead to its runoff and the formation of sagging. If the drywall surface is primed, just apply 1 coat.

It is necessary to observe safety measures:

• In no case should residues be drained into the sewers or water bodies,
• if the composition gets into the eyes or on any other part of the mucous membrane, it must be thoroughly washed with a stream of clean water,

• the solution cannot be disposed of as household waste,
• it is advisable to use personal protective equipment (gloves, tight clothing, a respirator and glasses - when spraying).

If after application the primer still remains in the jar, it must be tightly closed and stored at a temperature not lower than 0 °, but not more than a year from the moment of opening.

Conclusion

Tiefengrund Knauf is a deeply penetrating primer inside a surface with large or small pores. Strengthens the base and reduces the consumption of future paintwork. It is definitely recommended for use. You need to buy only a quality mixture, in specialized stores, if you have a certificate,

KNAUF primers - a wide range of building materials of European quality

Knauf is recognized as the leading manufacturer of finishing and building materials in Europe. The company offers a wide selection of products for the decoration of ceilings, floors and walls indoors.

Knauf products are manufactured at more than 100 enterprises located in Europe, China, North America, Iran and other countries of the world. The main products of the company include drywall sheets, gypsum partitions, metal profiles, polystyrene, dry mixes, perlite, equipment for working with plasters and other mortar.

Along with the listed products, KAUF pays sufficient attention to the development and production of primers of various modifications.

Among the common advantages of Knauf primer are:

• Knauf primers are compatible with all finishing materials of this manufacturer - this eliminates the need to compare the compositions when processing walls from different materials,
• minimum consumption
• primers used in the decoration of facades are resistant to temperature fluctuations, impervious to atmospheric moisture,
• primers let air through - a natural microclimate is established in the room,
• Knauf primers are hypoallergenic and do not contain substances harmful to the body,
• the primer provides good adhesion of the facing materials to the treated surface.

The price of Knauf primers is perhaps the only drawback. There are many companies on the construction market willing to offer similar products at a lower price.

Tiefengrund - universal acrylic primer

KNAUF Tiefengrund - a quick-drying colorless primer of deep penetration. In composition, it is an aqueous dispersion of small particles of artificial resins that are resistant to saponification. The primer does not contain plasticizers and solvents.

Tiefengrund primer strengthens the surface and regulates the absorbency of the material

Technical characteristics of the KNAUF Tiefengrund primer:

• deep penetration into the treated surface,
• binds dust
• water vapor permeable
• does not burn,
• economically used (material consumption - 70-100 ml / m3).

Tiefengrund is a universal KNAUF primer, as it can be used for surface treatment indoors and outdoors.

Scope of acrylic primer KNAUF Tifengrund:

1. Arrangement of a seamless floor from finished parts. Suitable for plasterboard, gypsum fiber and cement fiber boards.
2. For priming gypsum structural parts it has a moisture protective effect.
3. For the processing of substrates (lime, lime-cement and gypsum-lime plasters) before laying tiles, painting or wallpapering.
4. Deep priming of the facade walls of the building, for example plaster processing before painting.

The primer is applied with a brush to the surface of the walls and floor, with a roller on the ceiling. The temperature of the base and material during priming should be at least 5 ° C.

Tools and containers used during operation must be washed before drying. The remnants of the dried KNAUF Tiefengrund primer can only be removed mechanically.

Primer Tiefengrund is available in containers of 1, 2.5, 5 and 15 liters. The cost of a 10-liter can of primer is about 640 rubles.

Estrihgrund - primer for seamless flooring

KNAUF Estrihgrund primer reduces the water absorption capacity of various substrates and improves the adhesion of combined seamless floors.

Estrihgrund has a viscous consistency, therefore, before use, it is diluted with water in a ratio of 1: 1.

It is desirable to treat a highly absorbent surface twice with KNAUF Oestrichgrund: the first time in a ratio of 1: 2 (water: primer), the second time - 1: 1

The procedure for applying primer Estrihrund:

1. Clean and dry the base. There should be no dust, paint residues, wax, oil, etc. on the surface.
2. Apply the primer in the appropriate dilution with a priming brush, roller or roller evenly to the floor, avoiding the formation of puddles.
3. Leave to dry completely - about 24 hours. When ventilating the room in dry and warm air, the drying period is markedly reduced.

Primer consumption KNAUF Estrihgrund:

• dry seamless floor - 50 g / m2,
• calcium sulphate floor or floor base - 100 g / m2.

Primer Estrihgrund is sold in plastic buckets with a capacity of 5 and 10 kg. Shelf life of the material in closed containers is 12 months at plus temperature.

The retail price for 10 kg of Knauf Estrihgrund is about 1500-1800 rubles.

Betocontact - primer for weakly absorbent surfaces

KNAUF Betocontact is an alkali-resistant polymer dispersion containing pure silica sand.

Betocontact primer is used in the preparation of dense, smooth and low-porous surfaces with low absorbency before plastering or applying putty. Knauf Betocontact is also used in preparation before applying gypsum stucco.

Optimal for processing reinforced concrete and compacted concrete surfaces.

Technical characteristics of Knauf Betocontact:

• Designed for interior use
• alkali resistance - high,
• application methods: with a fur roller or spraying using special equipment,
• primer color - pink,
• the primer is ready for use.

The primer is applied undiluted to concrete, when working with less dense surfaces Betocontact can be diluted in the ratio of 1 liter of water per 20 kg of primer. The same primer consistency can be used if the material is applied through spray guns.

The period of complete drying is 24 hours at a temperature of 20 ° C and a relative humidity of about 65%. If the humidity in the room is higher and the temperature, on the contrary, is higher, then the drying period is significantly increased.

Apply the plaster to the base immediately after the primer dries, without putting it off until later, otherwise the construction dust will settle on the surface and the adhesion of the materials will decrease.

Consumption when working with undiluted material is 0.25-0.35 kg / m3. Primer is available in containers of 5 and 20 kg.

It is possible to buy KNAUF Betokontakt primer at the price:

• a bucket of 5 kg - about 600-800 rubles,
• a bucket of 20 kg - about 1800-2200 rubles.

During storage, do not allow the primer to freeze and direct sunlight to the container.

KNAUF Grundirmittel - alkali-resistant polymer emulsion

Primer Knauf Grundirmittel - a modified polymer dispersion, is resistant to alkali and does not contain solvents.

Knauf grinder is recommended for processing highly absorbent surfaces such as: silicate brick, aerated concrete, foam concrete, etc.

Scope of application of a primer:

• KNAUF gypsum plaster base (NR-Start, Rotband, MP-75, Goldband),
• at arrangement of bulk couplers KNAUF (FE-30, FE-50 Largo, Fliesspachtel-315, Duneystrikh-325, Levelingspachtel-415),
• before laying the tiles if using Ceresit or KAUF adhesive.

The order of work is as follows:

1. Depending on the absorption capacity of the base, the primer Grundirmitel is diluted with water in a ratio of 1: 2 - 1: 5.
2. Apply gently with a brush or fur roller, spraying onto the surface of the base.
3. Stains from the Grundirmittel must be removed immediately. If the primer has time to dry, then the stains can be removed with a solvent of artificial resins.

Advantages of Knauf Grundirmittel:

1. improve the adhesion of any base
2. strengthens the surface of “weak” gypsum and chalk materials,
3. regulates the absorbency of the base.

Material consumption is 200-300 ml / m2 - depends on the absorption capacity of the treated surface.

The primer is available in buckets of 15 kg. The cost of one bucket is about 3,000 rubles.

Putzgrund - the best solution for decorative plasters

KNAUF Putzgrund - a pigmented synthetic dispersion of white color, which includes quartz sand. The primer is narrow-profile, as it is used for processing substrates (concrete, gypsum plasterboard or gypsum fiber) before applying decorative plaster.

Advantages of Knauf Putzgrund:

• can be used for interior and facade work,
• waterproof
• improves adhesion between materials,
• lets in air
• evens out the color of the base,
• Ideal for white decorative plaster.

When applying Putzgrund primer, the temperature of the walls and air should not be lower than 5 ° С

Before use, the primer must be mixed, diluted with water - not necessary. Leave the primed surface for 6 hours to dry, after which you can proceed with further work.

Material consumption - 200-300 g / m2 - depends on the hygroscopicity of the base.

KNAUF Putzgrund is packed in 20 kg buckets, the cost of the primer is about 800 rubles.

Isogrund - silicone based emulsion

KNAUF Izogrund is used for pretreatment of surfaces of old and new cement-based plasters before applying the Knauf Dynamite 240 and 260 grouted, thin-layer and decorative plasters.

It is applied to ceilings and walls outside and indoors.

How to use KNAUF Isogrund:

1. Stir the primer well.
2. Apply with a roller or brush to the base.
3. After 12 hours, you can carry out subsequent finishing work.

Isogrund primer is available in 15 kg containers. Material consumption - about 200 g / m2. Roughly, one bucket (15 kg) is enough for priming 75 m2.

To buy a primer Knauf Izogrund is possible at a price of 800 rubles.

KNAUF Haft Emulsion - concentrated primer for deep penetration

KNAUF Haft Emulsion is an alkali-resistant modified dispersion designed to treat highly absorbent substrates before applying putty.

Technical characteristics of the emulsion:

• the primer goes well with alkali-based materials (lime, cement),
• resistant to gasoline, oil, saponification, acid and alkaline solutions.

Scope of application of the deep penetration primer KANUF Haft Emulsions:

• production of floors based on cement - the emulsion gives wear resistance to the base, the surface attracts less dust,
• used to improve leveling and puttying compounds,
• protection of the base of bulk cement floors,
• component in concrete repair mortar,
• cement-based grout improver,
• can be used for non-absorbent and mixed substrates.

An emulsion is produced in buckets of 5 and 10 kg, the price of the primer is about 1000 rubles per 5 kg.

KGAUF Haft Emulsion should be stored at positive air temperatures; short-term storage of the primer is allowed at a temperature of -5 ° С.

How to choose a primer

Properly selected primer provides a reliable adhesion of the base and finishing materials. Priming with poor-quality material can lead to cracks, peeling of putty, paint and peeling of wallpaper.

Here are the main criteria for choosing the optimal primer:

1. It is desirable that the primer and finishing material have a similar basis. For example, acrylic water-soluble “primer” is suitable for water-dispersed acrylic paint.
2. An important selection criterion is the type of substrate, namely, the ability of the surface to absorb. Deep penetration primers consist of tiny particles that easily penetrate deep into the material through micropores (up to 10 cm). Reinforcing primers interact only with the surface of the base.
3. The reinforcing “primer” is best used on substrates that do not require special treatment. Priming the entire surface with a deep penetration primer will cost more.
4. When buying, you can easily determine the type of primer by evaluating its transparency. The deep-action primer has a more transparent consistency, and the firming “primer” looks like milk.
5. For the treatment of walls, floors and ceilings in damp rooms, special antifungal primers must be used to prevent the formation of mold.

The use of a primer can improve the operational and decorative qualities of the finish both indoors and outdoors. Priming the surface is an easy process and you can do it yourself. The primer can reveal all its positive qualities only if it is correctly selected, and no mistakes were made during its storage.

Primer Knauf - specifications

The most significant technical characteristics possessed by Knauf primer include the following:

1. Primer Knauf is well compatible with all building materials for decoration made by the company of the same name and not only. This makes it possible during repair work not to compare separately the compositions with building materials.
2. The minimum level of consumption of the solution.
3. The stability of external primers before temperature changes, the creation of water resistance and natural ventilation.
4. Lack of toxic substances.
5. Reliable adhesion of the building material to the treated surface.

You should know that Knauf primers are considered an expensive product, and there are many cheaper options on the market with similar characteristics. But as they say - the avaricious pays twice and, having bought a primer of unknown quality, you can spend a lot more financially on further repairs alterations.

In order for the Knauf primer to be correctly selected for any specific construction work, it is important to know what types of products exist today.

Types of primers Knauf

Knauf company produces several basic types of primers for use in various applications. All of the types of primers listed below can be used both at the stage of building a house and during its interior decoration.

Tiefengrund - This is a deep penetration primer that has no color. This composition dries quickly, representing an aqueous dispersion of particles of artificial resins. Tiefengrund is used to strengthen materials while maintaining steam transmission and incombustibility.

Estrihgrund - allows to reduce the water absorption capacity of the material.

Concrete contact primer - the composition of this primer includes real quartz sand, which allows you to process reinforced concrete and compacted concrete surfaces.
Grundirmittel - this composition processes materials that are capable of excessive absorption of moisture.

Putzgrunt - This is a white dispersion used for decorative plaster.

Isogrunt - cement surfaces are treated with such a silicone composition before applying Knauf decorative plasters.

Haft Emulsion - used before puttying.

You should be aware that half of all success depends on how well the surfaces are prepared, no matter what the walls or ceilings are, when doing DIY repairs. The primer stage is very important for reliable adhesion of one building material to another.

Knauf Tiefengrund primer review

A primer of this type is made according to the German recipe and meets the European quality standard. It differs from many analogues by its vapor permeability, but it is also a moisture-proof component of the wall. As part of environmentally friendly ingredients, hypoallergenic, you can use the composition without protective equipment. It is odorless and dries quickly, which is convenient when using a primer indoors.

Knauf Tiefengrund primer is used both outside and inside the building. The main requirement for the treated surface is strength and hardness. You can use the mixture for processing:

• gypsum boards and other moisture absorbing substrates,
• cement and gypsum screeds,
• gypsum and cement plasters,
• compacted monolithic concrete base,
• joints GKLV and GKL before applying gypsum putty.

Also, this primer is often used as a starting mixture before plastering or before applying stucco elements to provide better adhesion.

There are several varieties of Knauf Tiefengrund primer. Outwardly, they are similar, but there is a simple variety and one that can give in to freezing. True, it can only be frozen up to 5 times, and then it spoils. On the packaging of such a product there is a mark “frost-resistant”.

Knauf Tiefengrund primer benefits

Advantages and disadvantages

The primer of this type is known to many thanks to its advantages.

• Increases adhesion to the substrate when using wallpaper, paint, putty, ceramic tiles.
• It dries quickly.
• Differs in a small expense.

• Safe and odorless - you can work with it without a respirator.
• It hides small cracks and defects, makes the wall more even.
• Well strengthens the base on a gypsum and chalk base.
• It has a deep penetration.
• Withstands changes in temperature and humidity.
• Does not isolate the room, allowing the walls to let pass fumes.
• Saves decoration materials.

The main drawback is the price. This product is considered affordable, but there are cheaper analogues.

Photo primer Knauf Tiefengrund

Cost, packaging and storage

Primer Knauf Tiefengrund is available in plastic, white buckets with an airtight lid (most often blue) and a metal handle. The film is not sealed. Packing of 5 and 10 kg. The cost depends on the type of primer, displacement and can range from 165 to 870 rubles, in bulk it will be a little cheaper.

Shelf life is 12 months, provided that the can is not printed. You can store in a warehouse where it is neither hot nor cold, away from heating systems. The frost-resistant variety withstands up to 5 frosts, but it is advisable not to specifically freeze the mixture. If this happens, it is thawed at room temperature, without heating and without accelerating thawing, otherwise it can lead to damage to the primer. If the packaging does not contain frost-resistant markings, this means that it is forbidden to freeze the primer, otherwise it will quickly lose its quality!

Frost resistant primers

Now available in frost-resistant version.

New items in stock:

• withstand 5 cycles of freezing - thawing,
• can be stored and transported at temperatures up to -40 ° С,
• have no restrictions on the duration of freezing,
• after thawing, they retain their properties,
• have their own bucket design,
• scope and other properties remained unchanged.

Important!

When freezing, do not accelerate thawing with heating devices or hot water, this leads to damage to the primer. Defrost at room temperature. Stir before use.

European quality

Knauf is recognized worldwide as a reliable manufacturer of building materials. It offers its customers a wide range of products at affordable prices. The goods of this company are produced at one hundred enterprises located in China, America, Europe, and also other countries. That is why the geography of sales of this brand is quite wide.

Knauf is engaged in the production of many building materials, including primers, which have various modifications.

Among the advantages of primers of this brand, the following points can be noted:

• They are fully compatible with most finishing materials in the modern construction market.
• The composition is designed in such a way as to minimize its consumption during application.
• Primers of this company can be safely applied when decorating building facades. They are resistant to temperature changes and moisture resistant.
• The composition does not trap air, which provides an excellent microclimate in any room.
• Mixtures are completely safe for the human body, environmentally friendly.

The only drawback of this company's primers is their cost. Many companies in the modern construction market offer identical products at a lower price. For many buyers, this fact is decisive and they acquire mixtures of other companies.

The composition and properties of the primer

The material is a combination of the following components:

Fine quartz sand.

The main property of the primer mixture is to maintain the moisture leveling solution, which ensures uniform drying. Thanks to this feature, the plastered wall is guaranteed not to crack. In addition, the mixture improves adhesion and reduces the consumption of liquid finishing materials.

An interesting property is the antiseptic function, which prevents the appearance of any pathogenic microflora on the treated wall. In addition, "Concrete Contact" increases the vapor permeability of the intermediate layers, normalizing the process of air exchange between the interior and the street.

How to apply to the surface

The mixture is ready for application without preliminary preparation, however, professional finishers recommend stirring the composition before application to evenly distribute the components: sand may settle at the bottom of the package.

Before starting work, it is necessary to clean the surface of dust. You can apply KNAUF primer with a wide brush or roller, the best option for a large amount of work: a spray gun or a plaster station.

Usually two-layer application is carried out:

At the first pass, it is allowed to mix the composition with a deep penetration primer.

The second pass is carried out only by a clean “Concrete contact”.

Repeated application is allowed only when the first coat is completely dry. If you do not consider the time frame, then re-priming is performed after the first layer ceases to adhere to the hands.

Material consumption per 1m2

The value of flow rate plays a key role: it is important for builders to know how much material will be needed for surface treatment. Given that the cost of the material is not small, to know the exact consumption is equivalent to reduce the cost of finishing work.

It is worth noting that it is almost impossible to calculate the exact consumption: here you will have to take into account the features of the base. For example:

The ability to absorb moisture.

Accordingly, for smooth surfaces, the flow rate will be less. On average, on 1m2 leaves approximately 200-300 grams. It must be clarified that these figures are relevant for manual application. Using a spray gun will increase consumption, albeit to a small extent.

How long does the applied mixture dry?

Judging by the manufacturer's recommendations, for complete drying, it is necessary to order 12 hours. However, this indicator is not an axiom and the drying time depends on environmental conditions. At optimum temperature, the applied layer can dry through 3-4 hours.

If the room remains high humidity, you will have to wait about a day.

How to choose?

A correctly selected primer provides high-quality adhesion of the base and finishing materials.

Priming with a product of inadequate quality leads to cracks, peeling of wallpaper.

It is better to immediately get a quality solution and avoid all these troubles.

Knauf primer selection criteria:

• The primer and material for further finishing should have one basis.
• An important criterion is the type of base. Solutions of deep action incorporate the smallest particles. Strengthening solutions interact only with the surface. This must be considered when buying.
• Strengthening composition can be applied on grounds that do not need any treatment. It will be more economical.
• It is necessary to determine the type of solution, while evaluating its transparency.
• For processing in rooms with high humidity it is worth using antifungal primers. They will protect the room from mold.

See Knauf primer review in the next video.

What is better "Concrete contact" or a primer?

In fact, these are the same materials that prepare the base for the finish. Moreover, the compositions have different properties, which determines the appropriateness of their use. The difference is as follows:

"Concrete contact" is an adhesive composition that turns a smooth surface into a rough one to increase the adhesion of materials.

Primer - a composition impregnating the surface to a certain depth, which prevents moisture from drawing out from the leveling solutions.

If we say that it is better, then Betonokontakt looks more attractive, but it also costs much more than deep penetration primers.

Than diluted when the mixture thickened

Finishing material is initially sold in optimal consistency, so when applied manually, the composition is usually not diluted with water. The liquid solution will not be able to provide reliable adhesion, the unused composition will have to be constantly mixed so that the sand does not settle.

With mechanical spraying, it is allowed to add tap water in a ratio of 2: 1.

Is it possible to glue wallpaper directly on "Concrete Contact"?

No you can not. The mixture creates a rough surface, respectively, close contact between the wall and the finish disappears. Adhesive just does not hold the wallpaper. Before wallpapering, you will need to additionally treat the wall with finishing putty in order to maximize the leveling of the surface.

A short (1min. 30sec), but informative video will significantly complement the understanding of the material obtained during the reading of this article: