Polynor or ppu which is better. Overview of sprayed polyurethane thermal insulation polynor. Basic material properties

Polynor - Norwegian sprayable polyurethane in cylinders.
First drawback: it's expensive. Cheaper than calling men with a stationary spray (especially as far as mine ... they probably won’t go), but very much more expensive than any other (non-spray) insulation. A cylinder (485 rubles in Leroy Merlin) is really enough for two square meters in one layer. And you need two layers, after all. It turns out a balloon for one square. In the absence of extra money, it makes sense to use it only where it would not work in another way. In my case, it was exactly like this: it was not possible to insulate the ceiling with mineral wool. That is, it was not possible to press this mineral wool to the ceiling so that the wind did not walk between the ceiling and the mineral wool. The ceiling is the floor of the attic, the attic (unlike the first floor) has already been inhabited, but on winter nights, thanks to the cold floor, there was a dubak. When the temperature dropped to -30 on New Year's Eve, in our country, even with the kilowatt convector constantly on, it dropped to +5 in the morning. It seems to be impossible to spray polynor in the cold, and in the summer it is not so easy to check the effectiveness. But at least after spraying by the morning I was +20 with +15 overboard WITHOUT using any heaters at all. I think it's a success. But let's wait for winter, of course.
The second drawback: a small draught when spraying, from which you must close yourself and close all the surrounding objects that have some value (for example, the floor). Especially if you spray on the ceiling (for the law of universal gravitation). When sprayed on the walls, it is not so noticeable, but still there. In general, the insidiousness of this phenomenon lies precisely in the fact that at first it is not so noticeable, and one might at first think that everything is not so scary. But SUDDENLY (closer to the end of the balloon) the tin begins. I worked in a disposable coverall that covered everything except the muzzle and boots, and glasses. She regretted that there was also no veil (for bearded uncles, it is generally obligatory!) She did not regret the boots just because they were already full of holes for ejection. Paul did too thoroughly.

Whether it is possible to wash it with something - I do not know yet. There was no special liquid for diluting polynor (such exists in nature) in Leroy-Merlin. I haven’t had time to try liquid for polyurethane foam yet, but I suspect that it’s unlikely to work.

The third disadvantage: the material is combustible. Not as combustible as Styrofoam (won't use to kindle a stove :o), but MUCH more combustible than wood. Alas, I will not blow out the steam room for them.

Pros: efficient and fast. No need to wrinkle turnips about all sorts of designs, cut pieces of something. You take it, and pretty quickly you spray everything on anything (you don’t need to wet the structure beforehand. It says so in the instructions, and it really is). It dries quickly, the second layer according to the instructions can be done in twenty minutes, it feels even faster. As a result, we have a really tight, seamless layer of insulation (if everything is done correctly). There is no excess (again, with proper use), even cut off excess (irregularities) can be used to plug some cracks (unlike mounting foam, which, when dried, turns into something solid, it turns out a soft, springy substance)

And about the correct application. Firstly, you need special caps that are put on a foam gun. Since mounting foam, in principle, is sprayed into the cracks, and polynor - on the contrary, to the maximum area. That is, the caps are fundamentally different. One such cap is sold with each balloon. But it's a wall spray cap. To spray on the ceiling, you need a special cap for spraying on the ceiling (otherwise, to spray on the ceiling, you would have to turn the can over, and in this form it will not spray well). Ceiling spray caps are not sold in Merlin. They are on sale only in one office in Moscow (type the direct representative?). Fortunately, they have pickup from the Dmitrovskaya metro station, but even pickup costs 100 rubles, and delivery to the post office is even more (that is, many times more expensive than the cap itself). You can buy polynor from them, but not to say that it was much cheaper there than in Merlin. But they still have a gun (special for polynor), and a launderer.
An important point: not all pistols are suitable. This is stated in the advertisements, but it is not explained why. It's simple: these same caps do not fit on all pistols. That is, when buying Polynor in Merlin (and they don’t sell it in other STORES), you need to take a bottle, and with this bottle, or rather with a cap, go to the pistol department, and there specifically try on the cap on pistols. Success is not guaranteed at all: o) Only the pistol that was specially hung next to the polynor came up to me. But already in the next Merlin (in Tver), nothing hung next to the polynor. So, probably, the best option is to order everything you need (a lot of cylinders, a gun, a laundering machine and angle nozzles, if necessary) in the same office, and pick it up from Dmitrovka.
And about, actually, drawing. Apply evenly! The temptation not to do this is very great: o) I want to climb into the cracks and apply a little more there. This should not be done. This results in something like this:

That is, sometimes thick, sometimes empty. And where it is dense, hefty “mushrooms” swell, under which you can’t crawl in any way to blow out where it is empty. If only to cut them off (it is cut, by the way, well by a renovator). By the last flight, I was already smarter, and applied evenly in two layers, without being afraid that the first layer was not continuous at first glance:

If something went wrong, then there is a problem with the cap.

In the modern market of finishing and construction products, there is a large selection of materials for insulation, which differ in properties and performance characteristics. One of them is Polynor, a heater that appeared not so long ago, but has already proven its effectiveness in thermal insulation of houses. This is a novelty on the Russian market, which is a sprayed polyurethane foam with excellent sound and heat insulation properties, which will be discussed in more detail in the article.

Read in the article

Polynor sprayed thermal insulation

Polynor refers to seamless insulation. Consists of a one-component, spray-applied polyurethane foam. Its functional task is thermal insulation of surfaces. The working tool for application is a mounting gun, on which there is a special plastic nozzle. The insulation itself in the form of a substance is located in a disposable can of a certain volume.

Specifications and scope

Sprayed polyurethane insulation called Polynor has the following performance parameters:

• water absorption - 2%;
• density - from 18 to 28 kg/m3;
• thermal conductivity - 0.023 - 0.025 W / mK;
• to which flammability group does it belong - G3;
• polymerization time at a temperature of +20 degrees Celsius - from 40 to 45 minutes;
• the time required for complete drying - 36 hours;
• recommended thickness - 25 - 60 mm;
• service life - no more than 35 years (it all depends on the conditions).

Polynor sprayed insulation is essentially universal, as it can also be used as a finishing material. Areas of application:

• they process facades for finishing;
• foundations and attics;
• balconies;
• they are insulated with internal walls, partitions;
• isolate communication systems;
• also finds application in transport with isothermal functions.

There are enough areas where Polynor is used, which allows its operational characteristics. The material is flexible, resistant to destruction and easily applied to almost any surface. In addition, after hardening, it is environmentally friendly and is able to effectively absorb sound and vibration.

Balloon volume

Polynor foam insulation is in the form of an aerosol and is supplied in 890 ml cans. Visually, this is a polymeric substance that has a pinkish tint. Sprayed with a special gun. Liquid polyurethane forms a dense foam that is applied to work surfaces.

Advantages and disadvantages

Of the positive qualities are:

• insulation in cylinders called Polynor, unlike other heat-insulating materials, does not require the arrangement of a frame (we are talking about films, reinforcing meshes, and the like);
• it is convenient for them to work, especially if a hard-to-reach area or a surface with complex geometry is processed;
• to spray thermal insulation, you will not need additional equipment and an electrical connection;
• suitable for processing brick, wood, metal, glass and other surfaces;
• in comparison with traditional heaters has increased thermal conductivity;
• increases the speed of work. To apply a layer of 1 m 2, it will take no more than two minutes;
• low consumption. One bottle of sprayed Polynor insulation, with a volume of 890 ml, is enough to cover the surface of 1 m 2 with a thickness of 5 cm;
• hardens the material within an hour, after which other coatings are applied on top of it, for example, paint or plaster;
• according to the manufacturer, the service life reaches 50 years;
• along with thermal insulation provides sound insulation;
• will not become a "home" for rodents who love to spoil insulating materials so much.

Polynor - insulation in the form of foam for wall insulation in cylinders. Along with the advantages, this new generation material also has a number of disadvantages:

• direct solar radiation adversely affects it;
• will not last long if it is often exposed to moisture;
• restrictions during spraying. Namely, the temperature of the cylinder should be in the range from +18 to +35 degrees Celsius;
• toxic during operation until dry. In this regard, personal protective equipment is required, that is, masks, gloves, and the like;
• using for the first time, it is difficult to apply a layer of perfectly even thickness;
• as recommended by the manufacturer, the maximum layer thickness should not exceed 6 cm;
• after application, it seals the surface, preventing it from "breathing";
• for work, you will need to purchase a construction gun equipped with a nozzle.

Useful information! As for combustibility, Polynor is a self-extinguishing material, at least if it is not directly affected by open fire.

Application technology

Cylinders should be stored in a warm room, as sub-zero temperatures affect the performance of this insulation. Depending on how the finish is implemented, Polynor is applied both to a clean surface and to the crate. The application procedure is simple, which even a beginner can handle (although you won’t be able to guess the thickness).

Before applying Polynor, however, like other heaters, the working surface is carefully cleaned of dirt. If there are defects on the wall, they should be repaired. For example, a crack will not affect the properties of the insulation in any way, but this will not prevent it from spreading further. Therefore, it is better to eliminate all defects immediately.

The next stage is a thorough degreasing of the plane, for which special compounds are used. The fact is that the adhesion of Polynor with an oily surface will be poor. Further, inserting the canister into the gun, they begin to spray.

On average, the layer thickness is 5 cm. To adjust the pressure, the trigger of the pistol is pulled with one or another force.

Note! Shake the bottle every few minutes. Safety measures must be taken into account - in an uncured form, the insulation is hazardous to health.

The composition, after being applied to the wall, fills all the recesses and cracks, after which it solidifies, thereby forming a reliable insulation.

Consumption per 1 m 2

As noted in the benefits, this insulation is quite economical. The consumption of polyurethane foam in cylinders is as follows: 1 liter is enough to cover a wall of 1 m 2 with a layer 4 cm thick. For comparison, when working with mineral wool, you will need to spend more. In addition to the material, additional elements are also needed for insulation, that is, crate, fasteners, and so on, which also costs money.

When building a country house, thermal insulation work is indispensable. A good owner will always take measures to insulate the walls and roof. When choosing the necessary material for this, one of the main questions that arises for the owner of the house is what kind of insulation mice or their relatives do not gnaw.

First of all, it concerns the insulation of the floor and walls. As you know, many of the thermal insulation materials serve as a cozy house for these animals. Rodents do not eat any of the existing heaters, but they gnaw them with particular pleasure, arranging nests and passages inside it, and if they appear thicker than such material, then it is almost impossible to evict them from there. Therefore, choosing a thermal insulation material, you need to carefully study all its characteristics so that you do not have to redo all the work done again.

Applied heaters and their properties

It should be noted that there are few obstacles for mice that they are not able to overcome - these small rodents penetrate through the narrowest cracks that form at the junctions of the walls of the house and concrete sills, and through almost imperceptible cracks in the facade cladding. If, having penetrated into the insulation, rodents feel comfortable in it, they cannot be smoked out of there, therefore, the material for thermal insulation must have such properties that are unacceptable for animals to exist in its thickness. There are several such materials, and they are quite affordable for any owner of a house under construction.

Expanded clay

It has long won recognition as a reliable thermal insulator, as it has many advantages. It perfectly not only warms the house, but also absorbs noise. It is completely non-flammable, and most importantly - rodents do not live in it.

Expanded clay is made from clay of special grades, which is cleaned, carefully rubbed and kneaded into a plastic solution. Then, granules are formed from it and hardened in a certain temperature regime, at which swelling of the mass is achieved. When cooling, the insulation becomes light in weight and at the same time very durable, able to withstand significant mechanical stress.

Expanded clay can have different fractional sizes. So, it is produced in the form of sand, fine and medium-sized gravel, as well as large, up to 10 - 25 mm granules.

It is unlikely that rodents will choose at least some of their similar materials for nesting and living. If they can move around large fractions of the material, then mice, and even more so rats, will simply drown in a heater in the form of fine gravel and sand. Rodents simply cannot live in such material, since there is not enough air in its thickness and a large number of small particles that will clog the animal's airways. Mice or rats will also not be able to gnaw on expanded clay, since it is too tough for them, so they have nothing to do in a house where there is danger for them.

Basements, interfloor and attic floors are insulated with expanded clay, but it can also be used to insulate walls.

• To do this, a kind of formwork is made near or inside the walls, having the desired thickness, into which expanded clay is poured. It tightly fills all spaces without tamping.

• For a rough base, a vapor barrier material is laid, which is fixed to the logs. Expanded clay is poured on it and again covered with a vapor barrier from above. Further, a finishing floor of boards or plywood is laid on the logs.

• In addition, small expanded clay is used for the installation of a bulk floor using the "dry screed" technology, where it serves as a heater and sound insulator, and in addition - the basis for laying gypsum fiber panels. Arranging such a floor, expanded clay can be poured both on the ground and on the concrete surface.

Expanded clay of fine fraction - the main component of the "dry screed" of the floor

But first, a waterproofing material is laid on any of them, if it is laid in separate sheets, they are glued together with special adhesive tape. The waterproofing is lifted onto the walls by 15 - 20 cm, and a damper tape is installed along the wall and only then expanded clay is poured.

Gypsum fiber boards laid on expanded clay backfill will create a flat and durable floor surface

On top of such an embankment, carefully leveled horizontally using a system of temporary beacons, gypsum fiber panels that create a hard surface. In such a warmed base of the floor, rodents will never start.

• Since the mice manage to penetrate the interfloor and attic floors, they are also filled with expanded clay chips.

Expanded clay prices

Expanded clay

Foam glass

Another material that mice and their relatives do not favor is foam glass. It is produced in slabs and in bulk.

Foam glass - mice will not like this material

The placer material has the same properties as the fine fraction expanded clay, and is used in the same way for walls, floors and ceilings.

The plates are mounted on the walls from the outside or inside, and also laid on floors, on concrete mortar, bitumen, building glue, or on foam glass or expanded clay previously poured under them in a fine fraction.

Foam glass is a heat-insulating material that is made by melting and foaming glass. This process is possible due to the ability of glass to soften and boil at a temperature of 950 ÷ 1000 degrees.

When solidified, the material acquires high strength - this should reliably protect the house from the penetration of rodents. However, it must be remembered that the solution on which the plates are attached must be of high quality, and the seams between them must be airtight. Only in this case, the mice will not be able to enter the premises.

Video: Do ​​mice "love" foam glass?

• Foam glass perfectly resists not only rodents, but also the appearance of fungal formations and the appearance of insect nests.
• The material is durable, not damaged by moisture and does not decompose from ultraviolet radiation, does not crumble and retains its thermal insulation qualities for many years.
• A very important advantage of foam glass is its environmental friendliness - under any conditions, the material does not emit any harmful fumes that adversely affect the health of residents.
• Foam glass can be processed with a hacksaw or a jigsaw, so it is very easy to work with it during the installation of thermal insulation.

Video: advantages of foam glass as an insulating material

Ecowool

To avoid settling rodents in the insulation, experts recommend using ecowool. This is a relatively new material, but it confidently occupies its niche among the frequently used effective thermal insulators.

Installation of ecowool occurs with the help of special equipment, which helps to distribute the material over the insulated area. After the initial setting, the applied layer is leveled with a special roller.

The question arises as to why rodents bypass ecowool, because it is soft and easily amenable to the teeth of mice and rats. The secret of the dislike of these animals for such a heater is that in its manufacture the manufacturer adds to a mixture of orthoboric acid, which causes suffocation and dehydration in rodents. It is possible that individual specimens will try to arrange a nest in ecowool, but they will not be able to stay in this insulation for a long time, and even more so - to breed, so the rodents quickly leave the seemingly cozy place to live.

Ecowool treated with orthoboric acid has antiseptic properties, and also releases moisture well when heated, thereby providing sufficiently high fire-fighting characteristics.

Ecowool is produced from cellulose, which is absolutely harmless to the human body, so insulation can be carried out not only outside the building, but also from the inside, distributing the material between the crate of timber installed on floors and walls.

Ecowool has low thermal conductivity and sound conductivity, therefore it retains heat well inside the premises and drowns out all the noise coming from the street, as well as from other rooms, if interior walls are finished with it.

Ecowool remains functional for many years, as it is not subject to rotting and decomposition.

Video: insulation of the walls of the house with ecowool

foam concrete

Another insulation that rodents will definitely not like is this. And, the material is produced in two forms - in the form of blocks and a special solution.

• Walls are laid from ready-made blocks, or they are laid over ready-made brick or wooden walls.

• The solution is spread over the surface of the floor or filled with formwork, arranged, for example, from two rows of brickwork.

This material is composed of cement, water, sand, and a blowing agent. When solidified, it acquires rigidity and a pronounced porous structure. Mice will definitely not gnaw foam concrete, trying to make a nest in it, since such conditions are unacceptable for them.

The walls are insulated with foam concrete only from the outside of the building, or the mass is poured into the middle of the masonry during its construction. It is rarely used indoors for wall insulation, since it is necessary to strictly observe the technological process, and at the slightest deviation from it, condensation may appear in the walls, which means that mold processes begin to develop.

The floors may well be filled with foam concrete mortar. When completely solidified, it will become a reliable basis for the decorative design of the surface. Floors filled with this material will receive excellent thermal and sound insulation.

If the walls of houses are taken out, then such structures are considered reliable, warm and durable, since the material does not absorb moisture, is not subject to cracking, which means that it will be inaccessible not only for rodents, but also for the appearance of colonies microorganisms or insects.

Foam concrete blocks are light in weight, so laying them is easy. They are environmentally friendly and do not pose any danger to the inhabitants of the house. They are easy to process - cut or drill holes if necessary. The material is absolutely non-flammable and does not rot.

And what about the usual heaters?

1. Penoizol is the same foam, only sprayed in liquid form on walls and floors using a special compressor. Many articles indicate that mice do not gnaw on this material due to its constituents, but, unfortunately, this is not true. Rodents do a great job on this material. Perhaps they will not arrange moves and nests in it, but they gnaw it with great pleasure.

The same can be said about extruded polystyrene foam - it is dense enough, and therefore mice or rats will not live in it, but they will not refuse to gnaw it.

Ordinary foam plastic will become not only a simulator for teeth, but also an excellent place for making nests and passages. Rodents freely pass through it, find cracks in the wall and enter the house.

Video: mice and styrofoam

2. All types of mineral wool are also tough for mice and rats, and it does not matter whether it is glass wool or stone. Any of them is suitable for rodents to settle in it for living.

Mice have already done a good job on this mineral wool insulation layer.

They do not eat this material, but skillfully crush it, arranging their houses, and if they have already chosen the insulation layer of a certain house, it will be very difficult to remove them. The trouble is that poison cannot be laid out for them, otherwise the rodent can say goodbye to life right in the nest, and then it will be very difficult to get rid of the putrid smell. Therefore, it is not recommended to insulate the lower part of the house with these materials.

In order for the house to be protected from rodents, its basement and basements must be insulated with hard or bulk materials, and the joint between the wall and the concrete tide must be very carefully sealed. It is extremely important that no cracks and cracks form in this place - even the smallest of them will be a good loophole for gray slickers. And yet - in order for a private house to be protected from mice, it is necessary to have a good active cat that will intercept rodents on the way to the house.

But, choosing a heater, after all you need to follow the tips given above, which are based on the performance characteristics of the materials and on the experience of numerous owners of private houses.

One of the best materials for arranging foam thermal insulation at home with your own hands. Polynor surpasses most of the heaters both in terms of thermal insulation characteristics and durability, as well as in terms of economy.

This article will explore the possible areas of application of foam insulation, its technical characteristics, advantages and disadvantages. You will also learn how to properly perform thermal insulation with Polynor with your own hands.

1 SCOPE OF USE OF POLINOR INSULATION

Foam polyurethane thermal insulation, due to technical characteristics that are an order of magnitude superior to other thermal insulation materials, has always been considered the most effective way to insulate a house.

However, due to the loss to classical heaters in terms of availability and cost, PPU thermal insulation for polyurethane insulation has not yet become as widespread as mineral wool, polystyrene foam, and extruded polystyrene heaters.

Problems with accessibility were explained by the fact that for the thermal insulation of a house, which requires a sufficiently large amount of foam insulation, until recently it was necessary to use the services of contractors, or buy special equipment, raw materials, and delve into the basics of thermal insulation yourself.

With the advent of polyurethane insulation Polynor, the situation has changed in the opposite direction. Now, in order to insulate even a large surface, you do not need to look for contractors on the side, or invest in expensive equipment.

Polynor is a polyurethane insulation that is produced in compact cylinders, the contents of which are enough to insulate one square meter of surface, with a thermal insulation thickness of 6 centimeters.

If we compare the cost of thermal insulation with Polynor cylinders, with the price that third parties will have to pay for thermal insulation services, then the difference is more than obvious.

The average cost of polyurethane foam insulation of one square meter by a team of workers today is about 1-1.5 thousand rubles per square meter, which includes the cost of insulation and work. At the same time, the price of one Polynor bottle (per 1 m²) is approximately 500 rubles.

Based on the foregoing, Polynor is an ideal option for polyurethane foam insulation for private use. This material can be used for insulation of the following surfaces:

• Internal walls and facades of houses from any material - brick, concrete, gas silicate blocks;
• Lag floors, and any coatings with a non-loaded structure;
• The inner surface of the pitched roof;
• Attic, attic floor (Astratek liquid heaters are used);
• Foundation, basement, basement.

The liquid form of Polynor allows it to be applied to any surface, as a result of which the material is often used to insulate sewer pipes, hot and cold water pipes located outside the building.

It should be noted that the release form of Polynor somewhat limits the possibilities of its use. Cylinders of insulation do not have the level of pressure that is necessary to foam the empty space in hollow walls. Polynor is a heater used exclusively for spraying.

In general, as evidenced, in one working day, one person can perform thermal insulation with Polynor about 80-100 square meters of the insulated surface.

The structure of the hardened polyurethane Polynor 1.1 ADVANTAGES OF POLINOR The key advantages of Polynor over other polyurethane foam insulation, of course, are cost-effectiveness, convenience and ease of installation. You can also highlight the following strengths Polynor Fast hardening - within one hour;

• Do not eat mice (as well as liquid thermal insulation);
• Cold bridges are not formed;
• Does not adversely affect the human body;
• Does not require special expensive equipment;
• Highest efficiency;
• Durability;
• Closed cells do not allow steam and moisture to pass through;
• The material has the ability to self-extinguish, in the absence of direct exposure to fire 1.2 TECHNICAL CHARACTERISTICS

Polynor sprayed polyurethane insulation exceeds most of the heaters on the market, such as mineral wool, polystyrene foam, and extruded polystyrene foam, in technical characteristics.

The properties of balloon Polynor are virtually identical to those of industrial polyurethane foam produced in pneumatic units.

Consider the main technical characteristics of polyurethane thermal insulation Polynor.

• Thermal conductivity coefficient - 0.023 - 0.025 W / mk;
• The density of the hardened foam is over 28 kg/m³;
• The number of closed pores in the structure of the insulation is not less than 70%, like that of the Izospan V vapor barrier;
• Moisture absorption when the insulation is immersed in boiling water for 90 minutes - 2%;
• The upper limit of the permissible operating temperature is 121 degrees (in this mode, Polynor does not lose its characteristics for about a year);
• The average durability of the material is 40-50 years;
• Polynor is an elastic foam that does not collapse under deformations up to 50% of the original volume;
• Resistance to a humid environment - maximum;
• Environmental Performance - Certified for internal thermal insulation of closed residential areas.

Sprayed thermal insulation from Polynor can be applied to the surface of any building material. Consider the adhesive characteristics of polyurethane foam in relation to some of them.

• Aluminum - 1 kg / cm²;
• Brick, reinforced concrete - 2.5 kg / cm²;
• Plywood, wood - 1.5 kg / cm²;
• Steel - 1.5 kg / cm²;
• Cast iron - 2 kg / cm².

• 2 FEATURES OF INSTALLATION OF SPRAYED THERMAL INSULATION In terms of the complexity of arranging insulation, Polynor foam insulation differs from rolled and slab thermal insulation materials for the better.

  With the help of polyurethane foam, Polynor can perform thermal insulation of any surfaces: horizontal - floors, flat roofs; vertical and inclined - walls, facades, roofs; and objects with a complex shape - water supply pipes, caissons of wells, etc.

  Insulation with Polynor is feasible by one person, without the need for any outside help. Foam thermal insulation is produced in compact cylinders containing a sufficient amount of insulation to cover one square meter (assuming a thickness of thermal insulation of 6 centimeters).

  It is worth noting that such packaging has a positive effect on savings, since it is extremely simple to calculate the number of cylinders required for insulating an object, knowing their productivity.

  Before starting thermal insulation with Polynor, it is necessary to carefully prepare the surface to be insulated. The wall, floor, or roof of the house is cleaned of dust and mechanical impurities.

  If any damage is found in the structure of the house, the defects must be eliminated in order to prevent their further spread. In case of cracks in brick, concrete, or gas silicate walls, the damage must be repaired with a mixture of glue and cement.

  Further, the surface to be insulated is degreased using any organic solvent - acetone, toluene, 748. This is necessary due to the fact that Polynor's adhesion to an oily surface is much worse than with a clean brick wall.

  The PPU cylinder, before the start of work, must be stored at an air temperature of 18 to 30 degrees. Before applying, the balloon is shaken for 2-3 minutes.

  Spraying of thermal insulation is carried out using a special gun, which must be purchased separately, since it is not included with Polynor cylinders.

  Together with a polyurethane bottle, you will receive a universal nozzle that controls the flow and supply of polyurethane foam, which allows you to spray Polynor with any foam gun.

  It is necessary to mount the nozzle on the gun barrel (until it clicks), after which the cap is removed from the end of the cylinder, after which the gun rod is screwed into the PPU cylinder in a vertical position.

  As a rule, the thickness of the thermal insulation layer with Polynor should not exceed 6 centimeters. The flow rate of the foam supply is regulated by the pressure of the trigger handle of the mounting gun. The cylinder itself must be shaken every few minutes of operation (it is necessary to hold on to the cylinder itself, and not to the mounting gun).

  During the spraying of thermal insulation, it is necessary to strictly adhere to safety regulations, since uncured polyurethane foam can harm the human body.

  PPU can cause irritation to the eyes, mucous membranes, and skin areas that it comes into contact with, therefore, the installation of Polynor must be carried out in a protective suit, or, in the absence of special protection, use goggles and gloves.

  
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  2.1 PRODUCT REVIEWS

  Victor, 29 years old, Rostov:

  Used Polynor for thermal insulation of the attic floor. The insulation proved to be excellent, both in terms of ease of installation and thermal insulation properties.

  To cover 45 square meters of the room, cylinders worth 22 thousand rubles were required, which is much cheaper than other heaters of comparable quality. Recommend!

  Oleg, 39 years old, Moscow:

  For the first time, Polynor dealt with thermal insulation about two years ago, since then it has been my main insulation. I have already completed the thermal insulation of a house, a cottage outside the city, and a brick garage. It remains only to insulate the attic. In my opinion, thermal insulation with the best value for money does not exist.