Review of Polynor sprayed polyurethane thermal insulation

Properties and scope

It should be noted that in general, insulation materials based on polyurethane foam are somewhat inferior to their classic counterparts in terms of affordability. For this reason, these thermal insulation materials have not yet become as widespread as insulating building materials made from mineral wool, expanded polystyrene and polystyrene, the production of which is based on the extrusion method.

The issue of availability of polyurethane insulation materials for purchase is explained by the fact that the thermal insulation of a house requires a fairly large consumption of foam insulation. Until recently, this problem was solved by involving various contractors or by attempting to solve it independently through the acquisition of raw materials and special equipment, as well as the need to personally master thermal insulation technology.

The appearance of Polynor insulation on the market radically changed the situation. Now, to insulate any, even very large surface, the consumer does not need to resort to the services of third-party contractors and spend money on purchasing expensive equipment.

Liquid foam insulation Polynor is produced by the manufacturer in compact cylinders. The consumption of the contents of one such cylinder, provided that a heat-insulating layer 6 cm thick is created, is equal to 1 m² of the surface area being treated. At the same time, a comparison of the cost of Polynor thermal insulation sprayed from a cylinder with the costs of paying for the services of a third-party organization for home insulation clearly indicates in favor of the option of spraying liquid insulation.

It is known that the average cost of insulating 1 m² of polyurethane foam insulation by a team of specialists is approximately 1 thousand rubles, taking into account the cost of the material and the work performed. Whereas one cylinder of Polynor insulation for the same square meter of insulated surface area of ​​a gable or attic will cost the consumer approximately 500 rubles.

This type of heat insulator is recommended for insulating rooms from the inside or outside by applying it to the internal surfaces of walls and facades of houses made of any material - brick, concrete or made of gas silicate blocks. This also includes log floors and any coverings with a structure that does not support dynamic loads. This heat insulator can be used to insulate the internal surfaces of pitched roofs, attics, attic floors, foundations, plinths and basement floors of buildings.

Thanks to Polynor's liquid form, it can be applied to absolutely any surface. Therefore, this material is successfully used for insulating sewer pipes and mains for both hot and cold water supply, located outside construction sites.

It should be taken into account that the operational capabilities of this insulation are somewhat limited by the balloon form of its release, which does not allow creating a pressure level that allows foaming voids inside hollow walls, that is, this material is only suitable for external spraying. Regarding the issue of labor productivity when working with this material, according to reviews from those consumers who have already used it, within one working day one person can process about 80–100 m² of insulated surface with Polynor.

In addition to the convenience and simplicity in the process of work and the high efficiency of sprayed thermal insulation of the Polynor brand, one can also highlight its key advantages over analogues from other manufacturers, such as the ability to quickly harden, no more than one hour, and the absence of a negative impact of this material on human health.

Polynor insulation does not attract rodents as a food source. It does not create cold bridges and, despite being extremely efficient, does not require special expensive equipment for its installation. The closed cells of this durable material do not allow moisture and steam to pass through, and in the absence of direct contact with fire it is capable of self-extinguishing.

One-component sprayed polyurethane foam system Polynor (POLYNOR) in aerosol cans

Thanks to the emergence of innovative materials on the construction and finishing works market, processes are being optimized, the quality of construction is improving, and construction time is being reduced. Such technological innovations include Polynor, the insulation of the future, which is fundamentally different from traditional materials and technologies for insulating buildings. Manufacturer Norway.

Most people are wary, even hostile, towards innovation. The first issue is cost. Price, of course, is important, however, first you need to understand the essence. What are the technical characteristics, composition, what is the system of application of the new product.

The main differences of the new insulation are:

• an application method that does not require complex installation, special equipment and tools;
• ease of operation - does not require special knowledge and skills;
• purpose - from insulating walls to effectively sealing cracks;
• simplified ability to regulate the layer.

Did you know that: polynor is a sprayed insulation, one-component polyurethane foam. Designed for effective insulation of surfaces using a seamless method.

It is applied by spraying using a mounting gun. Polinor is sold in disposable cylinders with a pressure of 6 atmospheres of standard volume.

The new product increases the thermal protection of a building significantly, and is especially useful for owners of private houses for eliminating cracks in different places in the building. Polinor is a foam material with a bright orange-pink color.

Application

The purpose or purpose of creating polyurethane foam is thermal insulation, noise insulation, sound insulation. The new polyurethane foam insulation is a high-class heat-protective material.

Having the lowest thermal conductivity among analogues (0.023 W/m*deg), the sprayed material does not require additional treatments or protective films.

Its use does not require mounting and other accessories necessary for the installation of other insulation materials.

Expert advice: try polyurethane insulation in practice to understand how justified its high heat-protective characteristics are and how rational its consumption is.

Please note that high thermal protection characteristics mean low thermal conductivity and the ability to regulate flow, which makes the use of Polinor economical and profitable.

PPU is used for insulation:

• premises walls;
• roofs;
• gender;
• ceiling;
• basement;
• plinth inside and out;
• foundation;
• pipes and pipelines;
• separate rooms, balconies, verandas;
• industrial buildings, workshops, chambers;
• vehicles, trailers, tanks, wagons, vans;
• garages;
• utility rooms.

It is difficult to list where this heat-protective liquid insulation applied by spraying is applicable.

Advantages

The recently introduced insulation is rapidly gaining popularity. Its use not only increases the quality of construction of buildings and structures, but also contributes to significant cost optimization.

Polyurethane, interacting with oxygen, is activated and hardens. The same thing happens when polyurethane foam is used. However, the difference is significant.

Take note: the main difference between Polynor insulation and analogues and foam is the number of closed cells. Frozen Polinor is 70% of the cells closed, while foam and other materials cover only 30%.

In addition, with the help of aerosol cans attached to a gun, hard-to-reach places are insulated and the access of cold air to the smallest cracks is blocked.

In addition to low thermal conductivity, the obvious advantages of Polinor are as follows:

• high degree of adhesion, it can be used to insulate absolutely any surface, brick, concrete, stone, wood, plastic, etc.;
• low flammability with attenuation properties;
• easy simple installation;
• durability, strength, reliability;
• lightness, does not weigh down the structure;
• environmental friendliness;
• inertness to mold, fungi, rodents.

It is impossible not to notice that the material is conveniently packaged, economical to use, and can be purchased in the required volume.

There is no need for a frame, as for mineral wool and other roll or sheet insulation; labor productivity with Polynor doubles.

Flaws

There are no ideal materials; Polinor requires caution during the application process. During the polymerization process that occurs during spraying, toxins are released that are harmful to the human body. These chemical compounds lose their toxicity after final hardening, although the smell persists for some time.

Please note: work with Polinor must be carried out in protective equipment, a respirator, glasses, and gloves. Provide ventilation and take breaks to rest.

Tags: balloon, sprayed, polynor, insulation

« Previous entry

Release form

Sprayed insulation has been known since 2013. It is a one-component self-expanding mixture with a closed-cell structure.

In construction stores, this thermal insulation is sold in cylinders similar to conventional foam for a gun.

It is applied in the same way as construction foam. According to reviews, one cylinder is enough for a 5-centimeter layer of insulation over an area of ​​one square meter. The manufacturer's instructions state that the service life, in the absence of exposure to negative factors, will be at least 35 years.

Using the attachment

“Polinor” is a sprayed insulation material that is applied with a special plastic spray nozzle. It is attached to the tip of a regular mounting gun, and to do this you need to remove the nozzle from the sprayer, press it against the tip of the gun, then insert it into the spray nozzle until it clicks. The main thing is not to allow too much stress, as this can lead to cracking of the nozzle body. The nozzle cannot be used to work with regular polyurethane foam.

After the insulation has been applied, you can treat it with water using a regular garden sprayer - this will speed up the polymerization and better foaming of the newly created thermal insulation layer.

Professional advice and customer reviews

Over several years of use, Polinor insulation has already managed to win admirers. Many professionals who have been using polyurethane foam for a long time have given their preference to the new product. It is noted that it is extremely easy to install, fits perfectly on any surface and has good characteristics during operation. Thermal insulation occurs quickly and at a high level.

It is also noted that the material is extremely toxic, so you should take precautions and protect yourself with special suits, gloves, respirators and goggles. If foam gets on the surface of the skin, rinse it thoroughly and consult a doctor.

Also, consumer reviews note that Polinor insulation is quite expensive in cost, but this factor should not be decisive when choosing insulation. The speed of application and excellent characteristics will allow you to save significantly on heating the room in the future.

The material is extremely toxic, so precautions should be taken

Professionals also often prefer this material. Its light structure and ease of application can significantly reduce the time and money spent on installing insulation.

We insulate the roof

“Polinor” is a universal material with which you can perform a whole range of insulation work in the house. As for the arrangement of the roof, experts advise paying close attention to this process and not choosing too cheap materials. However, many modern builders prefer materials such as Polinor. Its price is affordable, but in terms of surface quality it is not inferior to expensive analogues. In order for the roof insulation to be carried out correctly, the order of work must be followed.

Basic properties of the material

Sprayed insulation Polinor. Its characteristics demonstrate excellent technical properties that exceed the properties of other materials:

ParameterValue

Most popular brands

The construction market is filled with foam insulation materials of domestic and foreign production. The following brands received the greatest number of positive reviews:

• Ecotermix;
• Titanium;
• TechnoNIKOL;
• Technology;
• Teplis;
• Polinor;
• Phorum;
• Penosil;
• Penoplex Fastfix;
• Home master;
• Sipur;
• Tri color.

When choosing a material, you need to carefully study the instructions for use, last of all, focusing on the price of the product.

Features of installation of sprayed thermal insulation

In terms of the complexity of arranging insulation, Polinor foam insulation differs from rolled and slab thermal insulation materials for the better.

Using PPU Polinor can perform thermal insulation of any surfaces: horizontal – floors, flat roofs; vertical and inclined – walls, facades, roofs; and objects with complex shapes - water supply pipes, well caissons, etc.

Insulation with Polinor can be done by one person, without the need for any outside help. Foam thermal insulation is produced in compact cylinders containing enough insulation to cover one square meter (based on the thermal insulation thickness 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 to insulate an object, knowing their productivity.

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

If any damage is detected in the structure of the house, the defects must be eliminated 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.

Next, the insulated surface is degreased using any organic solvent - acetone, toluene, 748. This must be done due to the fact that Polinor’s adhesion to an oily surface is much worse than to a clean brick wall.

Preparing the Polinor mounting gun

The PPU cylinder, before starting work, must be stored at an air temperature of 18 to 30 degrees. Before application, shake the container for 2-3 minutes.

Thermal insulation is sprayed using a special gun, which must be purchased separately, since it is not included with Polinor cylinders.

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

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

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

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

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

Thermal insulation of attic walls with Polinor

Product reviews

Victor, 29 years old, Rostov:

I used Polinor 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 a room, cylinders worth 22 thousand rubles were required, which is significantly cheaper than other insulation materials of comparable quality. I recommend!

Oleg, 39 years old, Moscow:

The first time I dealt with Polinor thermal insulation was about two years ago, and since then it has been my main insulation material. I have already completed the thermal insulation of a house, a cottage outside the city, and a brick garage. All that remains is to insulate the attic. In my opinion, there is no thermal insulation with a better price-quality ratio.

Features of applying Polinor thermal insulation (video)

Calculate the insulation of your home

Polyurethane foam

The initial raw material for the production of such foam is a urethane polymer, which foams through chemical reactions and increases in size by almost 50 times.
In its structure, it is almost like polyurethane foam, with the difference that it has a finer structure.

Foaming of polyurethane foam (PPU) in a special device (production unit) is carried out in just a few minutes, after which it is supplied to the desired surface.

Final hardening lasts for 24 hours, then the façade walls can be sheathed with the necessary material.

Using polyurethane foam you can insulate:

• walls of houses (mostly frame);
• attics, roofs;
• house facades;
• basements, lower floors, etc.

The thermal insulation layer ranges from 4-8 centimeters with a high degree of efficiency.

Among the advantages of polyurethane foam, it is worth especially noting the high degree of hardening and adhesion to other materials.

PPU insulates surfaces made of various materials: foam concrete, brick, cinder blocks and gas silicate blocks.

Polyurethane foam is one of the lightest insulation materials by weight, which is why it is also widely used for insulating old houses.

If you need to insulate a small area, it makes sense to purchase foam in a balloon, which is enough for a layer three to four cm thick for an area of ​​approximately 1 sq/m. To calculate the cost and amount of foam, you need to proceed from the area of ​​the surface being treated.

Read an informative article about roof insulation with polyurethane here.

Reviews

Those who have used this insulation system have shared their opinions. Read the reviews on forums and construction sites that we have collected:

Airat

I read reviews about Polynor. I decided to try it myself too. The base was insulated with PP. I wanted to seal the seams with Polinor. It was sprayed well, the yield of material from the cylinder was almost 100%. But it is important to pay attention to the expiration date. I blew out one balloon, then went to buy a second one in another store. I used half of it, and then some kind of sludge started to appear. I took a closer look, and it was already past the expiration date. So you need to pay attention to this. But overall, I’m happy!

Natalia

It was necessary to insulate the loggia. I decided to look through the Polynor reviews on the forums. I liked it. I bought it from Leroy, received instructions and applied it myself to 12 squares. I'm happy with the result. At the end of autumn, being on the loggia is as comfortable as being in the apartment itself. The only thing is that when spraying, foam particles fly in the air, so you need to cover everything.

Sergey

The apartment is on the first floor. I decided to insulate the floor from the basement so that the cold wouldn’t pull in from below so much. I've heard about spray-on insulation. I googled reviews about Polinor insulation and decided to try it. In about 3 hours I foamed the entire required area (about 36 sq.m.). I liked everything, I just need to ventilate it, otherwise I might collapse from the stench. It is difficult to ventilate a basement, so the speed of work was a big plus.

After using Polynor insulation, you can leave your feedback in the comments below.

The best manufacturers of polyurethane foam

The ranking of well-known manufacturers of polyurethane foam is headed by brands that have earned recognition in the construction industry.

Soudal

The brand has factories in Poland, Belgium and Slovenia. Soudal brand products provide a structure that meets high European standards and a good yield volume. The sealant does not darken or deform over time, and the durability of the product is impressive.

Krimelte

The manufacturer from Estonia (Penosil brand) offers a variety of models of polyurethane foam for various purposes. Krimelte products are known in the professional environment for their decent price-quality ratio.

Titan

The Orion brand, with production facilities in Turkey, Spain and Poland, ranks third in the popularity rating among polyurethane foam suppliers. Products of this brand foam well without secondary expansion.

Ultima

The brand produces good quality polyurethane foam, the products are easy to use. Judging by consumer reviews, the sealant of this brand does not have an acceptable level of efficiency.

Foam for wall insulation

Axton

The company produces a sealant with high odorless polymerization characteristics, while reviews indicate low adhesion and high porosity of the structure.

Titan02

The highly popular mounting foam Titan02 is available in a winter version and with increased fire resistance. The product demonstrates exceptionally high efficiency when installing window and door structures. It is actively used in the repair of utility systems, sealing and thermal insulation of buildings. Titan02 sealant is sold within 230 rubles.

Penosil

The product is distinguished by its density and uniformity of structure with a large output volume. It is used for installation of structures, filling seams and cavities of varying complexity. The model range also includes special versions for foam plastic. The cost varies from 220 rub.

Soudal

Soudal polyurethane foam is available in three types - winter, summer and fire-resistant. The composition has a high density and a minimal level of porosity, and there is no pungent odor. This brand of sealant dries quickly and evenly. The products are especially appreciated by window installation professionals. Prices start from 350 rub.

Advantages and disadvantages

This type of thermal insulation material, in comparison with analogues from other manufacturers, is characterized by ease of installation, which does not require the creation of a frame and the use of materials such as films, isospan, adhesive composites, fasteners, reinforcing mesh, and the like. This heat insulator is conveniently used when working in hard-to-reach and spatially limited places and where there is a complex profile of the surface to be coated.

Polynor application technology does not require the use of special equipment and the consumption of electricity. This material, which has one of the best thermal conductivity compared to similar thermal insulators, also has excellent adhesion to a wide variety of building materials, from brick, concrete or wood to metal and glass.

With a very high coverage rate, when an area of ​​1 m² is covered with this material in one, maximum two minutes, Polynor has a low consumption rate. One container with a volume of 1000 ml is enough to apply a six-centimeter layer per square meter of surface.

The polymerization process of this heat insulator takes one hour, after which the coated Polynor surface can be painted, plastered, or any other coating or protection applied to it. This environmentally friendly material does not emit harmful volatile compounds during operation and has a long service life, which, according to the manufacturer, is about 35–50 years.

In addition to thermal insulation itself, Polynor is a sound-proofing material, rodents and insects do not like it, and it is resistant to fungal mold and other biological factors.

As for the disadvantages of this material, it is not resistant to direct solar ultraviolet radiation like polyurethane foam and is short-lived when in regular contact with water. Installation of Polynor is possible in a somewhat limited temperature range.

The spraying process is difficult to obtain a layer of uniform thickness, as a result of which the finished coating may have non-uniform thermal conductivity. Therefore, better, more uniform spraying depends on experience in working with this material. In this case, you should take into account the manufacturer’s recommendation, according to which the thickness of the applied layer is limited to 6 cm.

During operation, the cylinder can be used at temperatures ranging between +18 and +35°C. This waterproofing agent, as already mentioned, is toxic during operation, which entails the mandatory use of personal protective equipment.

Polynor is not hygroscopic, so there is a sealing effect on the surface coated with it, which serves as an obstacle to vapor absorption. The supply of insulation in cylinders requires the separate purchase of a construction gun equipped with a special nozzle. If the gun or nozzle is lost or broken, you will need to purchase new ones, since without them, the quality of the spraying process, according to the manufacturer, is significantly reduced.

Which variety to choose

In many ways, the choice will depend on the specific situation and what area needs to be treated. Using an example, we can consider the most common cases when a house needs foam insulation:

1. If you need to seal cracks or eliminate any other defects on the surface, then polyurethane is suitable. But such material should not be exposed to sunlight.
2. If you need to fill a large volume, then penoizol is suitable. But an ordinary cylinder will not be enough; you will need to purchase a special device with high pressure. You don’t have to buy it at all - you can rent it or borrow it from friends, because no one will use it often.
3. If you need to seal small cracks and carry out thermal insulation in small areas, you can buy a cylinder with regular polyurethane foam. It does not support combustion, after hardening it is particularly hard, and it has an ecological composition.
4. If defects are found on the outside of the wall, then you need to apply a composition based on polyurethane. It is applied directly using a special cylinder or apparatus.

It is worth remembering that foam insulation creates errors inside the layer that need to be eliminated.
To do this, you will need a long hose to push the material inside. If it is necessary to fill air gaps inside the insulation, then holes are made in the wall with something sharp. Polyurethane foam is not suitable for insulating the entire external facade - it does not have the appropriate characteristics necessary for this. Therefore, you should not choose it for these purposes, even despite its more economical cost.

Advantages and disadvantages

Among the positive qualities are:

• insulation in cylinders called Polynor, unlike other heat-insulating materials, does not require the construction 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 surface with complex geometry is being processed;
• to spray thermal insulation, you do not need additional equipment or an electrical connection;
• suitable for processing brick, wood, metal, glass and other surfaces;
• compared to traditional insulation, it has increased thermal conductivity;
• increases the speed of work. It will take no more than two minutes to apply a layer of 1 m2;
• low consumption. One 890 ml can of Polynor spray insulation is enough to cover a surface of 1 m2 with a thickness of 5 cm;
• the material hardens for an hour, after which other coatings, such as paint or plaster, are applied on top of it;
• as the manufacturer claims, the service life reaches 50 years;
• along with thermal insulation, it also provides sound insulation;
• will not become a “home” for rodents, who so love to spoil insulating materials.

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

• direct solar radiation has a negative effect on it;
• will not last long if frequently exposed to moisture;
• restrictions during spraying. Namely, the temperature of the cylinder should be in the range from +18 to +35 degrees Celsius;
• toxic when used until dry. In this regard, personal protective equipment is required, that is, masks, gloves, etc.;
• when 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”;
• To work, you will need to purchase a construction gun equipped with an attachment.

Helpful information! As for flammability, Polinor is a self-extinguishing material, at least if it is not directly exposed to open fire.

Polynor insulation: characteristics

In our previous article we talked about Izba basalt wool. Today we will talk about a modern material, which, according to forecasts, will soon become one of the most used in civil engineering.

We will talk about sprayed Polynor insulation (one-component polyurethane).

We will help you understand the technical characteristics of this material, methods of its installation and conduct a short comparative analysis of liquid thermal insulation.

Polinor is sold in pistol cylinders.

Polynor spray insulation is a one-component polyurethane composition that is sold in cans similar to polyurethane foam. The similarities between these two materials are not only in packaging, they are also very similar visually. This is where their commonality ends.

Polinor insulation, according to reviews, has surpassed even polyurethane foam. Material characteristics:

• thermal conductivity 0.025 W/mK;
• water absorption no more than 0.03% per day;
• low vapor permeability;
• density 18-28 kg/m. cube;
• flammability group G3 - a normally flammable substance, at 120 degrees it begins to collapse.

One cylinder of Polynor sprayed insulation, according to reviews, is enough for one square of the treated surface if the thickness of the thermal insulation is 5 cm.

It must be taken into account that the material increases in volume after application. This process occurs as a result of contact with air. The higher the air humidity, the more intense the reaction occurs. This is a material with a closed cell structure.

The number of closed cells reaches 70%; they are filled with ordinary air. Polinor insulation, the characteristics of which allow it to be used without additional hydro and vapor barrier, is afraid of direct sunlight.

We invite you to familiarize yourself with: Bath insulation: price, characteristics. Buy insulation for a bath in Moscow with delivery

Just like regular polystyrene, it does not tolerate a humid environment and is destroyed by constant exposure to water.

One-component polyurethane foam has excellent adhesion to any surface, it does not peel off or break. Polynor insulation, according to reviews, is very elastic, so even if a crack appears in the structural elements, it will not appear in the thermal insulation. In addition to preventing heat loss, this material absorbs sound and vibration waves. It is non-toxic.

If you install combined heating, then the probability of being left without heat in winter approaches zero.

You will find everything about heating a house with diesel fuel with reviews from experienced people in this article.

Working with sprayed insulation is very simple.

• skirting boards and fillets, decorative stucco;
• thermal insulation - both sprayed and in the form of shells and sheets;
• packaging materials;
• molds for the production of artificial stone;
• adhesives and sealants;
• as a basis for the production of paints;
• as an additive to almost all modern coatings;
• as sealing connections.

• low thermal conductivity;
• resistance to various chemical agents (except hydrochloric and nitric acids, turpentine, chlorine, acetone);
• resistance to abrasive influences;
• durability;
• resistance to atmospheric influences, including ozone, ultraviolet radiation and sea water;
• wide range of operating temperatures - from -60 to 100 degrees;
• excellent dielectric properties;
• ability to withstand fairly high working pressure.

And if you consider that the material is environmentally friendly, then its popularity becomes quite justified.

In the production of the material at the dawn of its inception, two substances were used: polyisocyanate and polyol. Depending on the proportion in which these components are used and the reaction rate, the technical characteristics of the final material can vary quite significantly.

• Perlon U - flexible, elastic, but poorly resistant to tearing forces (foam rubber);
• Igamid U is hard and durable, but cannot withstand bending loads.

Modern polyurethane foam is a material with a cellular structure, in which 85-97% of the volume is occupied by pores filled with gas or air.

The very substance that forms these pores makes up only 3-15% of the total volume of insulation. Therefore, polyurethane foam is a very light material.

• for soft material – 5-40 kg/cu.m. m;
• for hard – 30-86 kg/cubic. m.

• thermal conductivity is 0.019 - 0.03 W/m - the lowest of all thermal insulation materials;
• the solid type of polyurethane foam has a large number of closed pores, which significantly increases its acoustic impermeability and allows the material to be used as sound insulation;
• a high adhesion rate allows the material to be applied to surfaces of any configuration without using additional fasteners;
• the resulting coating is very durable and does not suffer from exposure to precipitation, aggressive atmosphere of industrial production, pests, microorganisms (however, prolonged exposure to sunlight should be avoided).

The neutrality of polyurethane allows its rigid form to be used as thermal insulation for food refrigerators, and its elastic form as furniture padding and filling for children's toys.

PPU with a density of 70 kg/cubic. m practically does not allow water to pass through and can be used as waterproofing.

• construction industry – about 50%;
• instrument making and refrigeration industry – 20%;
• space, rocket, automotive, furniture and other industries - the remaining 30%.

The material has become very popular as thermal insulation for main pipelines of large diameter and length. In this area, it not only reliably protects pipes, but is also rarely subject to vandalism - because it simply cannot be stolen for reuse.

In the medical industry, the material is used for the production of orthopedic shoes and prostheses.

• Substance A is intended to support the reaction of component B. Its composition includes: foaming components, foam regulators, catalysts, polyesters, fire retardants. Supplied as a brown or yellow liquid.
• Substance B is an isocyanate, which upon contact with air begins to polymerize.
  It is a brown liquid with a pungent odor.

When substances A and B are mixed, a chemical reaction begins, accompanied by the release of a large volume of carbon dioxide, which foams the material. After hardening in air, a layer of insulation is formed with a large number of closed small cells containing carbon dioxide.

The mixture is sprayed using special equipment.

• Easy application of the mixture to any surface in a continuous sealed layer without the formation of seams. This way, you won’t have to worry about possible cold bridges.
• Being hydrophobic, it perfectly protects any structures, including metal ones, from corrosion (it doesn’t even need to be painted).
• Excellent adhesion allows the material to be applied to any surface, even smooth (cleaned of debris, dust and grease stains).
• After polymerization, polyurethane foam acquires high strength, allowing it to be used, among other things, for insulating basement floors and foundations.
• Although polyurethane foam is not a non-flammable substance, the addition of fire retardants to component A allowed it to be assigned a fire safety certificate G2 (poorly flammable self-extinguishing materials).

But, having decided to use polyurethane foam for thermal insulation of a house, you need to know and take into account its disadvantages.

• The need to use special equipment to carry out the work.
• Low resistance to UV rays, dictating the need to protect the insulation layer.
• When applying the material, a large amount of carbon dioxide is released, which is harmful to humans, so during work you will have to use a respirator and skin protection.
• Quite a high cost of thermal insulation.
• Due to the large number of closed pores, the material practically does not “breathe”, so natural filtration of air through the structure of the house will become impossible.

• roof;
• walls;
• floors;
• attics;
• partitions.

Moreover, for each type of structure, a material of different density (and therefore weight) is used.

PPU helps not only to insulate structures, but also to strengthen them, as well as protect the house from excess noise.

Polyurethane foam insulation, which is applied by spraying, is divided into two categories: industrial - sold in barrels and used by specialists to insulate large structures and surfaces, and in 1-liter cylinders, which are intended for independent use. Industrial polyurethane foam is represented by several brands from different manufacturers.

• Sealection 500 is an American made material. It has an open structure and fire safety class G2.
• “Ecotermix” is produced on the basis of vegetable oils and contains a minimum amount of harmful substances.
  There are two varieties of it on sale: grade 300 - with a closed structure to protect external surfaces from cold, and grade 600 - with an open structure for interior work.
• Healtok Soy 200 is a closed-structure insulation material made from soybean oil and polymer waste.
  Adheses perfectly to any surface, tightly fills all cracks and pores.

We suggest you familiarize yourself with: Construction insulation for walls

Polyurethane foam in cylinders is made from polymer components. The cylinder has a spray tip or an adapter for use with a mounting gun. Currently, this insulation is presented on the market in two brands - Polinor and TEPLIS.

The material looks like polyurethane foam. After hardening, it forms a fine-mesh coating with low thermal conductivity. One cylinder is enough for 1 sq. m of surface when applied in a layer of 40 mm.

• Surfaces must be cleaned of dust and dirt and slightly moistened.
• You need to screw the nozzle onto the cylinder.
• Then it is shaken and the nozzle is directed to the desired location.
• By pressing the trigger of the gun, the material is sprayed.

Currently, insulation in cylinders is heavily advertised, but experts do not advise trusting advertising too much.

Although it is claimed to have a service life of 35 years, it has not yet stood the test of time.

Manufacturers of industrial two-component insulation believe that one-component polyurethane foam in cylinders is practically no different from conventional polyurethane foam, but costs several times more. The material has a large number of open pores, therefore it is unsuitable as a hydro- and vapor barrier.

Application technology

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

Before applying Polinor, however, like other insulation materials, the working surface is thoroughly 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 thorough degreasing of the surface, for which special compounds are used. The fact is that Polinor's adhesion to an oily surface will be poor. Next, inserting the can into the gun, they begin to spray.

On average, the thickness of the layer is 5 cm. To adjust the pressure, press the trigger of the gun with varying force.

Note! It is better to shake the container every few minutes. Safety measures must be taken into account - insulation that is not hardened is hazardous to health.

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

Consumption per 1 m2

As noted in the advantages, 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 m2 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 needed for insulation, that is, sheathing, fasteners, etc., which also costs money.

Required layer thickness

It all depends on the region in which the object is located. For clarity, there is a table that indicates how thick the layer should be for a specific element.

Receiving PPU

When mixed, polyol and isocyanate produce foam, which increases in volume and then hardens. During the manufacturing process, it is necessary to adhere to a number of requirements: maintain the required temperature and mix all components well, which makes it possible to obtain a polyurethane output that does not have seals and large air cavities.

If you change the production method, you get polyurethane foams that differ in their basic characteristics. Some are better suited for insulating openings for doors and windows, others for brick and panel buildings or pipelines. By changing the proportions of the ingredients, when mixing them, polyurethane foam with different cell sizes is obtained.

The most popular materials in this group are the following:

1. Foam rubber. It is widely used in everyday life and is familiar to every person. It is used as an upholstery filler for upholstered furniture and lining material.
2. Rigid polyurethane foam is used when performing installation work. It has been noticed that this insulation is negatively affected by acids and solvents.

Scope of application

The description of the insulation presents us with a modern, almost universal material, which has a fairly wide application as a finishing and insulating material, in particular:

• for facades for finishing;
• for foundations and attics;
• for balconies;
• for insulation of internal walls of a building, partitions in various buildings;
• to isolate communication systems;
• in vehicles with isothermal functions.

As you can see, the application is wide. And this is understandable, since the heat insulator has good performance properties, fits perfectly on any surface, is very flexible and is not subject to destruction, even if a crack appears on the surface. The material is non-toxic and perfectly absorbs sound and vibration waves.

Where is it used?

One-component POLYNOR is widely used for heat and sound insulation of the following elements:

• facades;
• loggias;
• terraces and verandas;
• attics and attics;
• basements;
• residential premises - apartments, houses;
• production premises;
• pipeline systems, utilities;
• thermos vans.

Precautionary measures

Despite the safety of the Polinor composition, it is recommended to observe the following precautions when performing insulation measures.

• When the composition is released from the cylinder, there is an increased concentration of the chemical components of the insulator, which can cause irritation of the mucous membranes of the eyes, respiratory organs, and skin. Therefore, work should be carried out in special clothing, safety glasses, a mask or a respirator.

• Do not spray the contents of the cylinder near an open flame. The presence of gas may cause a fire. It is also prohibited to combine installation with smoking cigarettes.

• In the room where thermal protection is installed, you need to open windows and doors to organize good air ventilation.

In general, working with polyurethane foam insulator Polinor, produced in cylinders, is characterized by simplicity and uncomplicated application techniques, which is confirmed by user reviews.

How to properly insulate a house made of timber

To insulate a wooden house, you should work from the outside: this allows you to save space, not disrupt your usual way of life, and remove condensation outside. Walls made of timber, no matter how thick they are, are covered with frost in winter, so thermal insulation is a necessity.

Mineral wool, polystyrene foam or polyurethane foam are suitable for this. The principle of thermal insulation is similar: installation of sheathing, waterproofing and facade.

Before insulation, treat the walls with antiseptics. Attach the sheathing, which will become the basis for the insulation, and will also allow condensation to escape outside. Air circulates freely between the lathing slats, moisture evaporates, which forms at the junction of the warm wall of the house and the cold air outside. Insulation must be fixed between the battens of the sheathing. If it is mineral wool or polystyrene foam, make sure that the plates fit tightly together, without gaps. Afterwards, you should take care of the waterproofing and attach a vapor-permeable membrane film over the insulation. This will allow moisture from the inside of the house to evaporate. Then the structure can be covered with a decorative layer: siding or curtain wall.

The most popular brands of industrial heat insulation

Ecotermix. It is made on the basis of vegetable oils, and foaming occurs due to a substance that contains water. The product has a low content of components that negatively affect human health. There are 2 grades: 300 and 600. The first is intended for application to external surfaces, and the second to internal walls. This is due to the fact that brand 300 has a closed structure, and 600 has an open structure.

Sealection 500. The material is manufactured by the American company Demilec, has an open structure and a G2 fire safety class.

Healtok Soy 200. This raw material has a closed structure. Produced from soybean oil and polymer residues. After spraying, the dimensions increase 50 times, securely fixing to surfaces of any materials, filling all existing cracks and voids.

Table of contents

How to insulate a house so that it lasts for many years? Take into account the features of wooden buildings. Wood is a flexible and porous material that allows moisture to pass through. To make thermal insulation, you need to focus on vapor permeability, sensitivity to high temperatures, and the likelihood of the formation of fungus and mold due to excess humidity.

To properly insulate a house, you need to select thermal insulation in accordance with the design of the house, make waterproofing that will protect the structure from moisture, and arrange layers of insulation so as to ensure air circulation inside.

A wooden house needs to be insulated from the outside. This will increase the usable area, protect the structure from temperature changes, and therefore from the formation of mold and cracks.