Polyurethane foam for penoplex: composition and application

Cerisit CT 85 is a special adhesive that is used for joining and reinforcing slabs.

The “Moment” adhesive composition will allow you to attach penoplex to anything. A universal composition will glue the material better; it can also be used as an alternative to substances for creating a reinforcing mesh. It has a good level of adhesion, high elasticity, frost resistance and moisture resistance. It does not need shrinkage and can withstand temperature changes.

Master Termol

The Master Termol brand produces an adhesive mixture to provide foam insulation systems.

It combines cement-sand components and has many advantages, including:

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• Good adhesion to walls made of cement, concrete and lime materials.
• High level of adhesion to polystyrene foam.
• High plasticity of the glue.
• Frost resistance.
• Ecological purity of the composition.

Master Termol can glue the necessary materials to each other with high quality and at the same level as products from a more expensive category.

ProfLine ZK-4

The ProfLine ZK-4 variety contains special substances that increase the level of adhesion between the base and penoplex. Allows you to work even with plastered bases, as well as cement and concrete. After complete hardening, the glue is not affected by moisture, frost, mechanical and other external factors. The adhesive product is produced from high-quality raw materials.

Penoplex Fastfix

A professional construction composition simplifies the process of attaching penoplex, makes the adhesion high-quality, reliable and durable. Penoplex sheets can be easily attached to concrete, aerated concrete, ceramics or brick. But it is not suitable for foil bases. Also, do not glue penoplex to silicone, Teflon, polyethylene, bitumen.

How to choose for different surfaces

For each type of surface, you need to choose your own suitable type of substance to glue foam boards:

Note! If the finishing of heat-insulating materials is carried out both on the walls and on the ceiling, then for these purposes it is better to choose polymer compounds.

Polyurethane adhesives are excellent for installing materials indoors, as well as for creating floor thermal insulation. To glue penoplex outdoors, mineral adhesives are suitable.

Adhesive foam is considered a universal material used for finishing walls, indoor and outdoor surfaces. Suitable for working with floors and ceilings.

Polyurethane-based compositions

For the installation of penoplex such products are often used. Most are sold in cylinders, so they are convenient and easy to use even for a beginner. The products are ready for use, they do not need to be mixed, and the consumption is economical. The most popular composition of the series is “Insta-Stik”. It is sold in 750 ml cylinders, the consumption when gluing is 12-15 sq. m, setting time - 20 minutes. Pull-off force – up to 400 kPa. The disadvantage is that it is not frost-resistant - you cannot glue penoplex to walls at temperatures below 0 degrees.

Another well-known glue is Titan Stiro-753. Its consumption is approximately the same (about 14 sq. m). The product has a high peeling force (600 kPa), and the setting time is even shorter (15 minutes). Penosil Fix&Go Montage is frost-resistant; it is used at -65...+130 degrees. Using the described means, it is easy to connect foam sheets together, stick them on wood, attach them to a brick wall, or to concrete.

Adhesive foam Penoplex Fastfix

This foam with adhesive properties is widely used for attaching thermal insulation made of extruded polystyrene foam to all kinds of substrates - ceramic tiles, concrete ceilings, floors and walls, plasterboard, aerated concrete, brick. Adhesive foam Penoplex Fastfix (“Penoplex Fastfix”) is produced in 750 ml cylinders, the product itself is light blue.

If necessary, the adhesive will provide adhesion to most building materials. Among them are plaster, stone, wood, expanded clay concrete blocks, metal, cork, cellulose. If the material had to be foiled, this product is incompatible with it. Foam is also not suitable for polyethylene, silicone, and Teflon. Here are the main characteristics of the material:

• drying – 10-12 minutes;
• complete hardening – 24 hours;
• possibility of cutting – within 30-40 minutes.

The product is used both for external work and for internal thermal insulation indoors; it is suitable for insulating loggias and balconies.

Product price characteristics

Glue brands with their approximate consumption and price characteristics:

Types of adhesives

First of all, it should be noted that there is a branded polyurethane adhesive for Penoplex insulation, and there are other types of adhesives from different manufacturers, but they need to be selected depending on the type of base and installation conditions, we will talk about these compounds further.

designed specifically for the installation of slabs.

Mineral-based compositions

Mineral compositions are dry mixtures developed on the basis of cement or alabaster (gypsum). It is believed that gypsum mixtures are more suitable for interior work, and cement mixtures for exterior work, but personally, I use cement mixtures both outside and inside; they are easier to work with.

Mineral mixtures have undeniable advantages:

1. When dry, they can be stored for quite a long time;
2. The composition is diluted as needed and exactly as much as needed;
3. The final setting time reaches 4 hours, so the work can be done carefully and carefully, which is very good for beginners;
4. Quite simple instructions: take glue, add a certain amount of water to it and stir with a mixer.

But at the same time, there are also limitations, so before gluing penoplex to concrete or to a brick wall using a mineral composition, the base must be carefully primed and wait until the soil dries, otherwise the concrete will “suck” the water out of the glue and the connection will not be strong.

• Suitable for almost all substrates;
• Minimum operating temperature 5 ºС;
• Average consumption – 5 kg/m²;
• Maintains mobility for up to 1.5 hours;
• Pull force up to 500 kPa;
• Frost resistance class F100
• Maximum capacity – 25 kg;
• The average price of a bag is 400 rubles.

• Average consumption – 4.4 kg/m²;
• Viability – up to 4 hours;
• Pull force – up to 600 kPa;
• Maximum capacity – 25 kg;
• Average price – 320 rubles.

When choosing an adhesive, pay attention to the frost resistance class, so F50 was developed for interior use, and F100 for exterior use.

Polymer or polyurethane compounds

Polymer compositions are usually sold in cans and are immediately ready for use. If you need to glue insulation boards to metal, then this is an ideal option. But this glue sets very quickly, so installation requires experience.

• Consumption 12 – 15 m²;
• Setting time up to 20 minutes;
• Pull-out force 200 kPa;
• Price – 550 rub.

• Consumption – 14 m²;
• Pull force – up to 600 kPa;
• Setting time 15 min;
• Price from 400 rub.

Waterproofing compounds

For waterproofing, penoplex slabs are glued to bitumen, acrylic or rubber mastics, but ordinary mastics are not suitable here, they can corrode the insulation. We need formulations without solvents, benzenes and other similar petroleum products.

• Setting time – 48 hours;
• Pull force – 500 kPa;
• Consumption – 0.5 l/m².

Low consumption, plus it works on any surface, including wood and glass, but due to the high price it is not popular.

How to glue penoplex

When choosing a method for gluing penoplex, depending on the type of base:

• Striped, when the glue must be applied around the perimeter of the base in even stripes, maintaining a distance of 20 cm from the edge. The slabs must be glued carefully and carefully to avoid the formation of air pockets that impair thermal insulation.
• The beacon method, in which a strip is drawn around the perimeter of the slab and the center is filled pointwise.
• Continuous - the glue is distributed evenly on the surface of the slabs with a notched trowel.

To properly glue penoplex, you need to first prepare the base, clean it of dirt, apply a layer of primer, and wait for it to dry completely. To enhance adhesion, you need to glue the surface of the penoplex board, pre-treated with sandpaper. You should not apply glue at the junction of the insulation; EE tape is used for this purpose.

Penoplex gluing technology (2 videos)

Rules for installing insulation

To effectively perform thermal insulation with penoplex, it is very important to know the installation rules. They look like this.

At the initial stage of work, a starting bar is set. This is a wooden strip or perforated corner. The plank is designed to keep the slabs from sliding and also indicates the direction of laying. It is selected according to the thickness of the penoplex.

It is possible to buy a ready-made set, including strips, external and internal mounting angles for joints.

The choice of method of fastening the slabs depends, firstly, on the coating material, and secondly, on the operating conditions. Insulation is installed on concrete and brick using the following adhesives and fasteners.

Using a bitumen-polymer thick sticky composition is a simple and cheap way to glue insulation. Due to its special properties, mastic is used on buildings located in special conditions.

The material is packaged in tubes. To work you need to have a special gun.

When laying, the edges and center of the slab are coated with mastic. After this, the insulation is applied to the base and held in place for up to an hour. If necessary, the slab can be moved at this time.

The main binding element of dry mixtures for insulation is cement.

Before use, the adhesive solution is mixed in water according to the instructions indicated on the package. For high-quality adhesion, after mixing, the solution is allowed to settle for two hours to obtain a homogeneous composition without water.

Applying glue to penoplex with a notched trowel

Before laying, the adhesive is applied to the foam plastic with a notched trowel, and then the insulation is applied to the base and held for several minutes. With this type of fastening, additional reinforcement with dowels is not required.

Glue.

Mixing glue for penoplex

Adhesives with the addition of cement are very common due to their ability to level the surface. With such glue, as a rule, additional fasteners are used.

The composition is applied to the slab in a continuous or dotted manner up to 200 mm wide.

Technology of fastening with adhesive mixture and dowels:

Polyurethane foam has become widespread. However, it is not suitable for fastening foam boards, as it collapses over time and does not hold the load well.

A special material for external fastening of insulation is adhesive foam in the form of a polyurethane foam binder. It has improved adhesion and good grip. Penoplex slabs installed with such an adhesive composition reliably adhere to concrete and stone walls.

During installation, adhesive foam is applied from a gun along the perimeter of the slab and in the center. Then the insulation is pressed against the base for a few seconds. After 20 minutes, the slab is firmly set, but further work can only be done after two hours.

Adhesive foam fastening technology:

1. Glue "liquid nails".

This is a well-known adhesive composition that is widely used in everyday life. It glues quickly and reliably. When insulating, it is used in small and hard-to-reach areas. To apply such glue to a large area of ​​coverage will require significant costs.

Glue has strict requirements for the condition of the surface. It should be smooth and coated with primer.

Priming the surface before gluing

“Liquid nails” are packaged in tubes, so they are applied pointwise with a special gun: in the center and along the edges of the slab. The glue dries quickly, so the insulation is applied to the base and then held in place for about a minute.

Choice of foam adhesive for polystyrene foam + budget option

Good material can be ruined by inappropriate use. Expanded polystyrene foams are excellent insulation materials. Their heat-saving ability can be impaired by using inappropriate adhesives or solutions to attach them. Manufacturers' recommendations are almost clear. High-quality fastening of the slabs is carried out by specialized foam for polystyrene foam.

Self-tapping screws: cheap and cheerful

Fastening with self-tapping screws using a screwdriver is permissible when insulating a wooden wall over a previously installed sheathing. In this case, it is recommended to install a washer under the screw head to avoid surface destruction and increase the reliability of fastening.

The most widely used method of fastening is the use of bitumen (adhesive) compounds and disc dowels. [flat_ab >

The resulting insulation layer is airtight, able to withstand large mechanical loads and has an increased insulation coefficient.

After installing the insulation, a reinforcing mesh is installed followed by cladding.

Now you don’t have to think: “How to glue penoplex? How to mount it correctly? The use of materials specifically designed for penoplex to the walls will allow you to avoid unnecessary waste of effort, money, time and get a durable layer of thermal insulation made by yourself.

Only advantages

Versatility is a good quality. In addition to it, foam for gluing foam has the following advantages.

It creates sealed air volumes under the surface of the expanded polystyrene sheet, increasing the level of thermal protection.

The foam is sold in metal cylinders with threaded connections installed on them.

With their help, the cylinder is connected to the gun.

These two elements ensure a quick start to work and the same change of the used cylinder.

It is necessary to use a special gun to ensure low mixture consumption.

Adhesive for foam plastic consumption:

One cylinder is enough to install 10 -12 m2 of insulation.

It allows you to easily dose and evenly distribute the foam adhesive. To adjust the feed volume, a regulator is installed on the gun. It also ensures that the trigger is fixed in a certain position, preventing excess amounts of the composition from escaping.

The polyurethane foam composition ensures quick fixation of the slabs to the surface. After 2 hours, the next stage of work on fixing the insulation or finishing is allowed.

Its excess can be easily cut off with a construction knife after hardening 30 minutes after application.

An increased degree of adhesion to various materials increases the speed of insulation work. This is the best product for installing foam boards on metal surfaces and smooth concrete.

Its use does not require measures to protect the respiratory organs, eyesight, and skin of the working person. Fire danger is zero.

The foam does not expand after application. This prevents possible distortion of the sheets after installation.

During the application and subsequent operation, no negative aspects of its use were identified.

After work, remove the gun from the cylinder and remove any remaining mixture from its external and internal surfaces using a cleaner.

Conclusion

As you can see, choosing glue for penoplex is not a problem now. I talked about those compositions that I encountered myself, but besides them there are many other worthy compositions. If you still have questions, write in the comments, I will try to help.

"Penoplex" is currently considered one of the highest quality slab insulation materials.

Author: Olga Bilovitskaya · Published 11/22/2018 · Updated 11/25/2018

Penoplex is a building material that is used for insulation and thermal insulation of various surfaces and rooms. To fix the slabs to the bases, special adhesives are used, which are available in a wide range. To ensure long-term quality and reliability of the material, you need to know how to choose the right adhesive for penoplex among the existing variety.

Operating procedure

Work is best carried out in calm, warm weather.

To thoroughly adhere polystyrene foam insulation, clean the surface to the material of the insulated surface. Set the starting bar strictly horizontally.

Its width is equal to the thickness of the sheet used. Remove dust by rinsing or sweeping. Prime the wall using a roller or brush. Treat the surface of the foam with a needle roller to improve contact with the adhesive.

Sticking foam is carried out in the following sequence:

• prepare the cylinder for use according to the instructions for use;
• screw the cylinder onto the gun, avoiding distortions;
• apply foam to the treated surface of the slab along the perimeter in a continuous strip about 3 cm high, then in the middle along the long side (the distance from the edge to the layer is at least 20 mm);
• install the stove in its designated place;
• if necessary, adjust its position, checking it using a long building level or rule;
• carry out subsequent stacking of sheets from bottom to top;
• Fill the resulting joints with foam;
• After 30 minutes, cut off the excess that appears with a construction knife.

To adjust the position of the sheet, the same polystyrene foam is used. Use a gun to pierce the foam and pump in the adhesive composition. The leaf retains its relative mobility for 10-20 minutes.

The use of adhesive foam makes installation work as easy as possible. The work can be carried out by one person, both on the surface of the earth and at height.

Manufacturers and reviews

Let's look at the most popular manufacturers of foam adhesives.

Tytan

Polish manufacturer Selena produces high-quality products at a good price. It offers Tytan adhesive sealants and universal compounds.

To glue penoplex to various materials, it is better to use the Professional Styro 753 series, which allows you to work outside, as it is highly resistant to precipitation, temperature changes, and moisture. When working with this glue, the tightest possible fit of materials is ensured.

Cerisit

Ceresit is a popular and sought-after brand that has released compositions that allow you to stick penoplex on walls, ceilings or other surfaces.

The assortment includes a whole line for working with this material:

• Ceresit ST 84 is a construction foam for penoplex, which is used in facade cladding. She is not afraid of both sub-zero temperatures from -10 ° and heat up to +40 °. Dries very quickly, especially in summer, in 2-4 hours. It is convenient to use a mounting gun.

• Cerisit ST 83 is sold as a dry mixture. The material dries completely in only 3 days, if conditions for air temperatures in the positive range are observed. It is convenient to work with the composition with a notched spatula. On average, 6 kg/m² is consumed. The disadvantage of this substance is that it does not respond well to cold weather; it is not recommended to work with it in such conditions.

• Cerisit CT 85 is a special adhesive that is used for joining and reinforcing slabs.

  
  This composition can also be used in warm conditions from +5 to +30 °C. The mixture is sold dry. Therefore, first you need to dilute it with water, let it sit for 2 hours, and only then apply it to the materials. For conventional gluing, the consumption is 6 kg/m², and for reinforcement – ​​5 kg/m².

"Moment"

The “Moment” adhesive composition will allow you to attach penoplex to anything. A universal composition will glue the material better; it can also be used as an alternative to substances for creating a reinforcing mesh. It has a good level of adhesion, high elasticity, frost resistance and moisture resistance. It does not need shrinkage and can withstand temperature changes.

Master Termol

The Master Termol brand produces an adhesive mixture to provide foam insulation systems.

It combines cement-sand components and has many advantages, including:

• Good adhesion to walls made of cement, concrete and lime materials.
• High level of adhesion to polystyrene foam.
• High plasticity of the glue.
• Frost resistance.
• Ecological purity of the composition.

Master Termol can glue the necessary materials to each other with high quality and at the same level as products from a more expensive category.

ProfLine ZK-4

The ProfLine ZK-4 variety contains special substances that increase the level of adhesion between the base and penoplex. Allows you to work even with plastered bases, as well as cement and concrete. After complete hardening, the glue is not affected by moisture, frost, mechanical and other external factors. The adhesive product is produced from high-quality raw materials.

Penoplex Fastfix

A professional construction composition simplifies the process of attaching penoplex, makes the adhesion high-quality, reliable and durable. Penoplex sheets can be easily attached to concrete, aerated concrete, ceramics or brick. But it is not suitable for foil bases. Also, do not glue penoplex to silicone, Teflon, polyethylene, bitumen.

We use an inexpensive analogue

If there is a lack of funds, you can attach polystyrene foam to polyurethane foam. In order to reduce its consumption, install the insulation using a gun.

When choosing polyurethane foam for penoplex, polystyrene foam and other polystyrene foams, pay attention to its components. It should not contain toluene, alcohols, solvents, or other substances that lead to destruction of the structure.

The procedure for preparing the surface and applying the mixture to the slab does not change. Before gluing the foam, the wall must be moistened with water. Brick and concrete – generously, wooden – lightly.

Features of installing insulation on the foundation

As a rule, the foundation needs insulation in the same way as the walls. Various methods of insulating the base of a building with penoplex are used.

1. Vertical method.

• Along the entire foundation there is a lower level for laying insulation.

• The slab is covered with adhesive and pressed in the right place.

• The entire foundation is covered with insulation using the same method. An exception may be places that are in the ground. The slabs in this place are pressed tightly against the foundation with soil.

1. Horizontal method.

In this way, the foundation from below is protected from freezing. The work is carried out at the initial stage of construction, when the foundation is just being laid.

• The slabs are tightly placed on the concrete base of the formwork.

• Waterproofing is laid on the insulation, and then the foundation is poured and reinforced.

• After removing the formwork, the sides of the foundation are insulated.

1. Thermal protection around the house.

In this case, the foundation and the surrounding area are simultaneously insulated.

• First of all, the foundation is insulated vertically.

• Then formwork is made around the foundations with an indentation of 100 mm, and the blind area is prepared.

• Insulation is laid in a dense layer on the compacted surface between the foundation and the formwork.

• A waterproofing film is installed on top of the insulation, overlapping the foundation, after which the formwork is filled with concrete.

What's wrong with it

Even if you follow all the technology requirements and these tips, it is difficult to avoid the disadvantages of using polyurethane foam.

Gluing foam takes much longer and requires more labor.

A gradual increase in the volume of foam that continues after application leads to deformation of the sheets, uneven surfaces, and the formation of gaps.

Repeated application increases the consumption of the adhesive base.

When choosing foam for installation, evaluate the advantages and disadvantages of each, including ease of use and cost.

Insulating a house with polystyrene foam places high demands on the compounds used. The adhesive and binding element must ensure good adhesion (adhesive strength) and durability of use, and the application technology must ensure the selected foam.

For reviews of attaching polystyrene foam to foam, watch the video:

Protective covering

In order for the insulation surface to look beautiful and be durable, it must be protected. The simplest and cheapest way to protect insulation is plastering, which is carried out in stages.

1. Selection of plaster mortar.

1. Selection of reinforcing mesh for plaster mortar.

1. Fastening the reinforcing mesh using a certain technology.

1. Laying the mortar, leveling the surface, grouting with a plastic float.

1. Primer the surface for the finishing coat.

1. Finish plaster. After drying, painting is done or a transparent protective layer is applied.

Video instruction:

In general, attaching penoplex to concrete and brick walls, as well as insulating the foundation of a building, is not difficult. It is enough to follow the installation technology and carry out the work carefully to ensure that the insulation is attractive and durable.

This often happens: choose - choose, buy - buy. What to do next? What goes where? What is what? There is no one to advise. You can't make a mistake. It's a waste of time, effort and money.

The same can happen when installing insulation. There is thermal insulation, there are walls. But how to attach penoplex to the wall so that it doesn’t cause excruciating pain later?

Polyurethane foam for penoplex: composition and application

Polyurethane foam is a popular building material. All types of work require a stage where this material is used. For example, this is the installation of plastic windows or doors, installation of partitions, and so on.

Polyurethane foam has a lot of positive properties - it glues surfaces and adheres to most other materials. Due to expansion, even a small volume fills any hole, gap or crack. With its help, a high-quality fastening is created and the element is fixed at the desired point.

Polyurethane foam is also relevant for working with penoplex.

Houses are different, and they need to be insulated in different ways.

The use of various technologies and materials in construction leads to the fact that it is impossible to give a universal answer to the question: what to consider when attaching penoplex to the walls of a house? Methods for fastening and preparing surfaces have been developed for different surfaces and operating conditions. You need to know this in order to control those who insulate the house. And even more so for those who insulate the house with their own hands, using their potential.

Houses can be made from stone and wood building materials. Already at the stage of surface preparation, peculiarities in the work begin to appear.

When preparing concrete and brick surfaces, you must:

• clean the walls from dirt, deposits, paint, fuels and lubricants, and then remove dust;
• treat the areas where the fungus is spreading with copper sulfate (antiseptics);
• remove efflorescence on brick;
• clean and seal cracks in the insulated wall;
• apply a deep penetration primer;
• smooth out unevenness with putty;
• apply a deep penetration primer after filling.

Preparing the tree is much easier. It is treated with impregnations that prevent wood rotting. Wall material such as oriented strand board or thermal wood may not be treated. Then a base of impregnated timber is installed, which ensures ventilation of the facade.

What are the advantages of using foam in the case of penoplex?

Penoplex is used as a soundproofing material, and polyurethane foam is used to blow in the seams between the plates. At the same time, it qualitatively seals the seam. Another useful function offered by foam is gluing the foam board to surfaces, even vertical ones.

Even an inexperienced builder can do this kind of work. The slabs are glued unnoticed, however, the penoplex is securely fixed and they proceed to the next stage.

Application of foam with penoplex

Using this product instead of glue will help save money, applying the foam is much easier and requires less time to dry completely than glue. The use of foam is in no way inferior to specialized glue in terms of adhesive properties. Why do they buy it to simultaneously use it both for gluing penoplex and for blowing in seams and joints.

Waterproofing compounds

This group of materials that will glue penoplex includes adhesives based on bitumen, acrylic, rubber, they are produced in the form of mastics. You can’t buy simple ones, they corrode the material, just like waterproofing agents with petroleum products. The best way to glue penoplex is Bitumast XPS. The mastic does not include solvents, sets in 2 days, and has a high peeling force of 500 kPa.

Acrylic adhesives can easily attach penoplex to wood, concrete, brick, connect penoplex to penoplex, and glue penofol to penoplex. They are suitable for interior and exterior work and have very low consumption. Bitumen mastics have the most pronounced waterproofing properties and are resistant to low temperatures.

How to choose foam for work according to method of application

The polyurethane foams that are offered in markets and stores today are no different. They are easily used in working with penoplex. The difference lies in ease of use, as well as temperature conditions.

First of all, foam is divided according to the type of operation:

• Pistol. This foam offers high efficiency and low cost. However, to use such cylinders, you need a specialized gun - a tool into which the cylinder is installed. Using a gun is much more convenient than a regular household cylinder, since the flow rate is controlled and regulated. With a gun it is easy to blow out points that are located inconveniently or in hard-to-reach places;
• Household foam will not require the user to purchase additional devices - after purchase they are immediately used. This foam is distinguished by its lower cost than professional foam, but the volume of work that is performed with its help is smaller.

Simply put, the same volume of professional foam will require much less than household foam (number of cylinders), which leads to savings.

In addition, if you plan to attach penoplex using polyurethane foam, then it is better to use a professional option. For gluing, use a smaller layer than for sealing seams. The professional version involves adjusting the flow of the substance, while the household version does not have such a function.

There is a definite difference in this material depending on the manufacturer - cylinders are produced in different sizes, so it is worth paying attention to this. The difference in price is 10%, and the difference in materials is 20%.

Questions and answers

There are a number of questions that concern users regarding the use of penoplex.

How to glue penoplex to penoplex?

There is no difference between how to glue two sections of penoplex and this material to other surfaces. But experienced builders claim that when fastening the slabs together, it is better to use a continuous method of applying glue, and you can do without a primer. In this case, dowel-nails are not required, and any glue listed above will do.

Is it possible to glue the material onto polyurethane foam?

You can glue penoplex to the foam, the adhesion will be strong. On the floor, this type of work is carried out on a self-leveling concrete screed. But gluing onto polyurethane foam is very expensive. It also tends to expand, so you will have to constantly press it until the process is completed.

Is it possible to glue penoplex to liquid nails?

You can use liquid nails, but it’s not very convenient. It should take up to 7 minutes before applying the slab in place, otherwise the glue will not set. In addition, the price of work will increase significantly.

Does air temperature matter?

This depends on the type of adhesive composition. Some lose their properties at low temperatures. Others allow work in the cold. All data must be clarified in the instructions.

Foam selection by season

It is necessary to take into account what time of year they work, or in what room. If there is a large temperature difference with the street, this is also taken into account. The difference is in the foam - some types are purchased if work is to be done in summer, others are suitable for work to be done in winter.

If you glue penoplex in the summer season, then purchase appropriate foam, which works at temperatures from 5 to 35 degrees above zero. The advantage of this choice is that summer foam does not contain toluene, which destroys foamed polystyrene.

Winter foam is used at temperatures no lower than 10 degrees below zero and no higher than 35 degrees above zero. Work is carried out even when it is frosty outside, or the room itself is cold (when working on the balcony).

They work with off-season (universal) foam at any time of the year, but it contains toluene, with which penoplex is incompatible. Such foam cannot be used.

Pay attention to the presence of this substance in the composition of the material - toluene. If it is, choose another foam, otherwise it will lead to disastrous consequences.

The degree of expansion also deserves special attention. Foams increase in volume by 60%, or are used at lower rates. For sealing seams, as well as for better fixation, they prefer the first option, characterized by a higher expansion rate.

Pay attention to the information on the packaging - it indicates the pressure inside the cylinder, the mass and yield of the foam, i.e. its efficiency and supply volume.

Types of adhesives

Basically, all substances in hardware stores intended for gluing penoplex with various substrates have a high degree of adhesion, provide good adhesion for many years and improve the quality of finishing. Each manufacturer of adhesive compositions tries to indicate on the packaging the main technical parameters for the operation of the product. These include the permissible temperature range for application and further use, optimal air humidity, and suitable types of surfaces.

It is worth considering in more detail all the types from the existing range and based on this, draw a conclusion which glue will suit you best for the job.

Bitumen mastic

Bitumen mastic has a thick consistency, can be used even in frost, and retains its properties. Bitumen-based substances are actively used in construction, often for waterproofing foundations. You can glue it to the mixture in accordance with its intended purpose or fill the joints between glued penoplex with it. In this case, it will act as an excellent hydrophobic filler.

It will be convenient to glue the slabs with such a thick mixture using a spatula or spatula.

It is important to know! Mastic provides a high level of adhesion of the material to a metal or mineral base. In this case, the substance does not need shrinkage.

Liquid Nails

This adhesive mixture can be called universal, since it can glue any substrate. However, you need to consider where the surface is located - externally outside or inside. For interior work, standard compounds are suitable; for outdoor insulation, you need to choose specialized products that have good frost resistance and can withstand temperature changes.

Liquid nails are sold in convenient tubes. To ensure good adhesion, glue should be applied to the slabs in a snake pattern over their entire surface. Setting time is 10-20 seconds. But, compared to other substances, liquid nails are a more expensive material.

Mineral

If you don’t know how to glue penoplex to concrete, pay attention to mineral compounds. They are sold in the form of a dry powder, which must be diluted with water, observing the proportions, to the required consistency. They have a high degree of adhesion and allow you to work not only with concrete, but also with gas silicate and brick. Mineral glue has high plasticity and is economical in consumption. To ensure high quality gluing, applying a thin layer is sufficient. To apply, you will need a notched grater. Does not shrink after drying, remains in its original volume. Mineral adhesive for penoplex for exterior use is moisture and frost resistant.

Reasons for choosing polyurethane sealant

When purchasing foam, it is once again checked for the presence of toluene, a substance that leads to permanent damage to the penoplex.

Even if it is not indicated on the cylinder whether it is present in the composition, they give preference to another option, where the composition is detailed and you can make sure that there is no toluene in it.

The best solution and choice is polyurethane sealant. This type of foam is better combined with penoplex and does not harm it in any way.

The advantages include high-quality sealing of gaps and cracks that invariably arise during the cutting of penoplex slabs.

The same substance will not lead to even partial damage to the foam boards, and gluing with its help is easy and simple. It will be more expensive than if you use specialized glue.

It is not worth saving on the purchase of foam, which is used to seal cracks, otherwise it will not lead to positive results. If the first sealed seam does not give the desired results, the foam is changed. They choose well-known and well-established brands - cylinders from popular manufacturers, whose quality you cannot doubt. In this case, calculate:

• For good adhesion between various materials, including foam boards;
• For high levels of thermal insulation and sound insulation;
• Using a gun, applying foam is convenient and precise, which will lead to less consumption of the substance.

Applying foam with a gun
High-quality foam prevents the penetration of moisture, moisture, and the appearance of mold or mildew. Provided that the seams are insulated from exposure to ultraviolet rays, which lead to the destruction of the polyurethane foam.

Types of adhesives

What composition is used to glue penoplex to the surface of a wall or ceiling? There are many options, but you need to choose the product carefully. This glue will hold not only the material itself, but also the entire insulating structure. If the quality of the glue is poor, it will not hold the insulation.

There are several types of adhesives depending on the composition:

• mineral;
• polyurethane;
• polymeric;
• waterproofing.

The first type is used to work with a dry surface, because at high humidity the mineral components immediately harden. It is better to carefully study the advice of the glue manufacturer before purchasing. This will allow you to choose the appropriate composition. It should not contain caustic, aggressive components, because penoplex is a capricious material, its structure is easy to destroy.

How to apply foam and how to work with penoplex

To fix penoplex sheets to the surface, using polyurethane foam as glue, apply it around the perimeter of the sheet and in the center. If a pistol is used in the work, it is better to minimize the supply of the substance. If you use a regular household cylinder, then apply foam quickly. Next, the penoplex is pressed against the surface and held in this position for several minutes. Then start attaching the next sheet. Pre-prepare the sheets - trim them for ease of installation.

The installation of the slabs is carried out in a checkerboard pattern, from bottom to top - this minimizes the gaps between them.

Next, start filling the gaps. If the distance between the sheets is large, then fill it with small wedges from the foam itself. If you use foam, it will cause cracks. Carefully blow out small cracks, not forgetting to hold the already fixed sheets. Do not overdo it; excess moves the sheet and disrupts its fixation. Remove what comes out.

Finished work

It is better to use foam when laying penoplex on the floor. When sheets are attached to the wall, glue is preferred. A specialized substance will provide more guarantees of high-quality fixation, although there have been no obvious complaints from builders regarding the foam. Many people use polyurethane foam instead of glue and no negative consequences have been noticed.

Instructions for gluing penoplex

When you have chosen what to attach the material to, you can proceed directly to work. It is important to properly prepare the surface of the base; you can do this yourself. It should be cleaned of debris, dirt, and dried. If the manufacturer recommends, you must first prime the surface. Next, you should cut out the necessary pieces of the base material. How to cut penoplex? For this purpose, a stationery knife or jigsaw is used.

Installation technology

After drawing up an installation plan, you can begin gluing the product to the floor, walls or ceiling. Mineral wool is often used under penoplex.

There are several ways of gluing with glue:

The dot method is more often used, in which liquid glue is applied with a spatula 100-200 mm wide. Then you should wait a certain time and press the material to the surface. After complete drying, the joints are sealed with polyurethane foam or the same glue. The second option is much more expensive.

Glue consumption

All useful information for the user, including material consumption, is always indicated on the packaging. The usual figure is 3.5-5.5 kg/one standard layer of material (for mineral mixtures). Glue in cylinders is more economical and consumes less (from 10 sq. m per cylinder).

Puttying penoplex

After the glue has completely dried, you can additionally fix the penoplex with dowels, this is more reliable. Next, puttying with finishing materials is performed. The putty must be applied smoothly, layer by layer, and the putty must be smoothed evenly. After the first layer, a mesh of metal, plastic, and reinforcing is attached. The thickness of the first layer is up to 1 cm, the second – slightly less. 2-3 layers are performed as desired, with the third layer usually done by spraying and up to 5 mm thick.

Rules for use in case of fixing penoplex and blowing seams

The crucial moment is the choice of foam. The presence of toluene in it will lead to damage to the building material and the need to purchase a new batch - and this is a serious expense. Therefore, it is better to spend a little more time in the store to choose the right option.

Before starting work, perform some manipulations with the cylinder.

Heat it up, no matter what season - winter or summer.

To heat, take a small container and fill it with warm water. Do not use hot under any circumstances. The cylinder is placed in a container - a low saucepan or a small ladle, so that the warm liquid reaches no more than the middle. This heating is sufficient for 5-10 minutes.

Disc dowels: long lasting strength

The use of disc-shaped dowels is justified in the case of a large insulation area or uneven façade surfaces. For fastening to dowels you need: a hammer drill (impact drill), a drill of the appropriate diameter and length, and a hammer. Holes are drilled with a recess of 50-60 mm into the base. The holes are filled with polyurethane foam. Then the dowel is driven in with a hammer so that the dowel fungi do not protrude above the surface of the slab. It is best to use dowels in combination with metal screws to increase the reliability of the connection. Installing 5 dowels per slab is sufficient. Adjacent sheets are fastened with one dowel. It must be installed in the seam between the slabs.

What is the advantage of adhesive foam for polystyrene foam?

Expanded polystyrene insulation is used so often that it can already be included in building standards. Indeed, almost every third house in any holiday village will be insulated with foam plastic in one way or another.

Its popularity is explained by its exceptional characteristics, which make it possible to create excellent thermal insulation while spending a minimum of effort and money. However, how you install polystyrene foam boards also plays an important role.

Adhesive foam cylinders for polystyrene foam

This is the point we will now discuss in this article. By the way, we recommend buying polystyrene foam in Khabarovsk.

Purpose

This is a composition with a limited scope of application, it is not universal. It was developed for securing slabs made of extruded polystyrene foam. Compatible with standard PPS.

This type of adhesive is used to secure the slab to the bases when installing thermal insulation systems. Some mixtures can be used for all types of work, some of them can only be used for external or internal work. Adhesive foam is used to install thermal insulation of building foundations, roofs, basements, floors, and walls.

Basic rules for attaching foam plastic

High-quality fastening of polystyrene foam to the wall is the basis for insulating a house. During installation, the main thing is that the material fits tightly to the working surface. It is impossible for air to circulate between the thermal insulation and the wall, otherwise the entire insulation effect is reduced to zero. When air blows over the wall, it takes with it all the heat that has passed through the enclosing structure. At the same time, polystyrene foam does not save the situation in any way - it just hangs on the wall.

In theory, all the heat that passed through the wall upon contact with the insulation stops moving, since the thermal conductivity of the foam is very low (0.034 W/m*K). In this case, the wall begins to accumulate heat and release it back into the room. But as soon as you allow the insulation to adhere loosely to the wall, the whole scheme collapses before your eyes. This is why preparation of the work surface is also important. The smoother the wall, the less likely it is that ventilated air gaps will remain under the foam. Particular attention should be paid to the bottom and side ends of the insulation cake.

Bulk insulation vermiculite can be used for thermal insulation of walls, but for this certain conditions must be met.

But, for example, adhesive-based insulation is not used for these purposes at all.

When insulating a house with mineral wool using the wet facade method, a base profile is used. It supports the mineral wool sheets and also blocks the path of air. For polystyrene foam, a base profile is not necessary, since this material is lightweight. It is enough to properly seal the bottom edge. To attach foam to the wall use:

• universal dry construction mixtures;
• glue foam;
• dowels fungi.

Before attaching foam plastic, familiarize yourself with the technology according to which you need to combine several fastening options.

Mushroom dowels for fastening foam plastic

Fungi for attaching foam plastic are used only in conjunction with glue. Without it, there will be a gap under the thermal insulation through which air will circulate (similar to the principle of a ventilated facade). We have already talked about the consequences.

To secure the insulation sheets, a hole is drilled through them using a hammer drill. Then a dowel is driven into them. The fungus cap securely holds the foam. One sheet requires five dowels. To find out more about this type of fastener, read our article “Mushroom dowels”.

Useful tips

There are several details to consider when purchasing foam adhesive:

1. Good quality glue cannot be liquid. You can check this indicator in large construction stores, as they have special “testers”. Squeeze out a little solution and evaluate the consistency.
2. With a cylinder volume of approximately 800 ml, a consumption of approximately 125 ml per 1 square meter is considered normal. The density of the composition causes its increased consumption during work, so this indicator must be taken into account when choosing.
3. Resistance to low temperatures allows you to work with foam glue in the cold; the conditions of use must be listed on the label. Such compositions are usually resistant to high temperatures.
4. Take a closer look at the components contained in the glue. There should be no impurities of carbon dioxide and freon. It is good if the composition contains isocyanate oligomers.
5. The glue setting time should be 10-15 minutes.
6. The lowest degree of adhesion relative to a concrete surface should be 0.3 MPa, regarding foam plastic boards - at least 0.8 MPa.

Air circulation between the wall and the thermal insulation is unacceptable, since in this case there will be no effect from the work performed. The foam or polystyrene boards must fit snugly against the wall. The simplest and fastest way to fix the insulation is to use foam adhesive.

Today, one of the most popular thermal insulation materials, which is used for almost all types of insulation work, is polystyrene foam. This is not to say that this is the best choice, but many people use it out of habit, although there are better and cheaper options. For example, mineral wool, although when it comes to insulating the facade of a multi-storey building, then expanded polystyrene is beyond competition. One of the issues that must be resolved during the installation process is attaching the foam to the wall. Today we will talk about all the methods that can be put into practice.

Macroflex

Makroflex MF 901 adhesive foam is a universal one-component high-quality composition used for quick connection of structures and different materials. Used for external and internal work.

"Macroflex" is an ideal option for gluing metal, ceramic, wood, stone, glass products, as well as MDF, PVC, plasterboard, plexiglass, cork, plaster.

Suitable for fixing polystyrene foam to stone, concrete, wood, brick, ceramic surfaces, even if they are uneven or vertical. The composition is resistant to vibration and low temperatures, adverse environmental factors, and chemical compounds. When hardened, it does not burn, is elastic, and sets quickly.

Working with foam adhesive is allowed at temperatures from –7 to +40° C and only if there is no ice, snow, frost, grease, oil stains, dirt, dust or moisture on the surfaces.

Advice! To clean the surface of dirt before using the Macroflex adhesive foam, you can use white spirit.

What is polystyrene foam and polystyrene foam?

Polystyrene foam, which is actively used in construction, is made by treating raw materials placed in a special mold with water vapor. Due to this effect, the molecules increase in volume and sinter with each other. Over time, under the influence of environmental factors, the connection between them becomes weaker, and the material is destroyed. The foam does not differ in strength, since the interaction of the granules is very weak.

Foam plastic used as insulation allows water vapor coming from inside the premises to pass through, they form condensation, which causes an increase in the humidity of the material. As a result, the thermal insulation characteristics of the foam deteriorate, and after some time it collapses.