Spraying of polyurethane foam: step-by-step instruction

Qualitative insulation can be made by different methods, but not all of them are suitable for complex surfaces. For example, inclined or uneven planes, vaulted underground storages, floor beams in attic spaces, frequent ledges and other cases. One of the most effective ways is the spraying of polyurethane foam on the attic beams and various irregularities. Today it is easy to do it yourself with the help of a special device.

Polyurethane foam - effective thermal insulation

Warmingspraying of polyurethane foam - one of the most progressive methods for solving problems with thermal insulation. The qualitative treatment of polyurethane foam( polyurethane) surfaces is a guarantee of saving fuel and energy resources. The method economically justifies itself for 2-3 years, and in the conditions of severe climate - for a year. The treated surfaces themselves look very aesthetically - somehow resembles a dense frost or snow wall. PPU is suitable for insulation:

• basement and attic space;
• technical and commercial buildings.

With the onset of the warm season, I do not want to deal with the warmth of the auxiliary rooms, however, it is better to do it right now, in comfortable weather conditions. In order to obtain uniform spraying on uneven and inclined surfaces, a disposable polyurethane foam installation is required. This way of processing surfaces simultaneously solves other problems, such as noise insulation, repelling insects and rodents.

This equipment is designed for work at a negative temperature, but it is still more convenient to apply polyurethane foam to the required surfaces in the summer, and the rent( purchase) of the device will be cheaper. Processing by spraying polyurethane foam can be used for both internal and external surfaces of structures of any kind:

• walls, roofs, floors;
• irregularities, ledges, niches, ledges, etc.;
• any horizontal, vertical or inclined surfaces.

Compact PPU application equipment is quite powerful, although it looks quite simple. It is successfully used for processing:

• garage door;
• inclined surfaces of loggias;
• loft overlapping beams;
• hangar or storage ceiling;
• underground structures with stone vaulted ceilings;
• walls of non-heated extensions;
• storage space;
• surface of vans;
• basement floors of non-residential premises;
• intermediate partitions;
• workshop accommodation;
• heating mains and external hot water pipes in the private sector.

Hardened material is durable and lightweight, similar to snow foam. The foam is filled with a gaseous substance consisting of freon, carbon dioxide and normal air. It is the gaseous structure of the material that guarantees its minimal thermal conductivity, and the porous structure provides sufficient sound insulation. It does not burn and does not change the structure in the frost. Ready polyurethane foam is obtained by mixing two components from cylinders supplied from the equipment for spraying polyurethane foam - by means of a pistol with a nozzle. It surpasses mineral wool, penoizol and polystyrene in many respects.

It is not difficult to master the principle of operation of this device if you have a general idea of ​​it. It is equally important to study in detail the instructions that accompany the purchase, so that there are no questions in the course of the work.

The main characteristics of the spraying of the

Experts classify surface treatments using polyurethane foam by spraying as a form of effective sprayed insulation Ecotermix. In modern construction, it is rightfully considered one of the most technologically advanced inventions of the 21st century. Interest in the invention is growing, and its effectiveness is no longer in doubt. This application technology continues to be improved by manufacturers to offer the customer even more effective solutions and reduce the cost of production.

The coating effectively prevents the penetration of excessive moisture into the room and the formation of condensation. This is very important in those warehouse, auxiliary and service rooms, where it is recommended to maintain a low level of humidity. Among the most important characteristics of high-tech spraying it is worth noting:

• Excellent adhesion - adhesion of the composition to the treated surface without preliminary treatment, that is, "adhesion" to metal, concrete, wood( even with bark residues).
• PPU perfectly protects metal surfaces from the appearance of rust and corrosion, as well as from the destructive effects of various aggressive environments.
• There is a possibility of insulation of those surfaces that can not be processed in any other way - wave slate, corrugated metal and wire netting.
• Externally brittle surface treatment of PPU manufacturers guarantees a long life - about 50 years, and even after that, microgranules will not lose thermal insulation properties.

The main advantages of thermal insulation by spraying

The whole range of works on high-quality heat insulation by spraying PPU, with the availability of equipment, can be performed independently for 1-3 days, depending on the area of ​​treatment with the composition. It is necessary to characterize the most important advantages of the technology of spraying insulation:

• minimum heat conductivity of the solidified foam;
• completely eliminates all the cracks, joints and gaps;
• excludes drafts, snow blowing and formation of cold bridges;
• spraying easily sticks to the most slippery surfaces and complex designs;
• formulation does not react with foreign chemical compounds;
• coating is completely ecological, does not emit toxic fumes;
• treated surface effectively retains heat;
• excellent moisture and sound insulation;
• surface after curing does not crumble, quite resistant, allows you to come into contact with storage and other equipment;
• the low weight of the coating gives an advantage for the attic or attic insulation;
• sufficient life of the insulated room.

Tip: Today, no other insulation can match the sprayed polyurethane foam by its characteristics. However, it is sometimes confused with penoizolom. Penoizol in its composition has a lot of water, which remains for a long time inside the foam, reducing the thermal insulation properties of the coating. It dries and shrinks, it can crack, so it can not be used in all conditions, unlike polyurethane foam.

Equipment for applying PPD

Few people thought about whether it is possible to make the spraying of polyurethane foam by hand? More often, after learning about the possibilities of such processing, they turn to the companies that are professionally engaged in this type of insulation. Specialists who have mastered the spraying of PPU with high-tech equipment are hired to apply a heater to their site. However, having mastered this method at home, you can open your own office and offer these services in order to have your business. The installation can be rented or purchased for the accumulation of precious experience. If necessary, you can invite a partner or companion - to deliver equipment to the facilities and auxiliary improvised works.

Suppliers offer two types of equipment - the installation for professional spraying PPU and disposable devices used for self-use. It is important to make preliminary calculations to know how much polyurethane foam is required in the given conditions. A single-use plant for spraying polyurethane foam at home is much more economical than professional equipment, so it is simply thrown away after use without recycling or attempts of secondary use.

Insulation is applied in thickness not more than 2.5 - 3 mm, which allows for a single application, depending on the volume of cylinders, economically treat the surface area of ​​15 to 95 square meters. The weight of the equipment is large enough, but it is designed for transfer by one employee, however, for a bet on an object, an auto is required. To bring the installation into working order, special skills are not necessary, it is enough to study the instruction. Pauses are allowed in the application of the spray gun, and if the nozzles are clogged, they need not be cleaned, since a set of 5 to 10 replaceable "spouts" is provided.

Let's consider a complete set of disposable unit for spraying polyurethane foam on the example of Touch'n Seal Foam Kit 1000 LD:

• box dimensions: 32х32х49 cm;
• installation weighs 55 kg;
• 2-component kit( A and B cylinders of 27.5 kg each);
• compact form enables the transport in the trunk of a car;
• foam hardens in a minute, expanding about 30 times;
• equipment base - cylinders with components, gun for mixing and spraying foam and 10 nozzles;
• 3-meter hose is sufficient for feeding to any surface;
• there is an instruction, a key for assembling parts, silicone grease and working gloves;
• the volume of cylinders is calculated on 93 sq.m.at 2.3 cm of the foam surface;
• total volume of foam - 2.35 cubic meters with a density of up to 20 kg / m3;
• if necessary cutting a part of the foam, it is available after 3 - 5 minutes;
• surface completely hardens after about 1 hour;
• after the first start can work no more than 1 month;
• foam components have a shelf life of up to 1 year;
• cost of equipment - from 34500 rubles.

Where and how to purchase spraying equipment

One-time installation for domestic use can be ordered on the websites of authorized representatives involved in the supply of this equipment. For this it will be required:

• to contact the manager at the specified telephone number and place an order;
• to pay installation with delivery by wire transfer by card, urgent bank transfer or cash on delivery, depending on the conditions of the supplier;
• specify if the delivery is included in the price or is paid separately;
• after confirmation of payment the equipment will be shipped from the warehouse and delivered to the specified address;
• delivery time - as with ordinary mail, depends on the distance and traffic;
• all questions on the operation of the installation for the application of polyurethane foam themselves can be clarified after receiving the same phone.

Features of the

equipment To start the surface treatment with polyurethane foam, it is necessary to clean them from dust and other fine suspensions. Washing and processing with reagents is not necessary, it is enough just to carefully cover the plane or vacuum.

The instruction for starting up the equipment contains 10-12 items, but first you need to read the entire list to the end, in order to have a general idea of ​​the installation connection and the process of foam application.

Important:

• observe not what is obtained as a result of processing the planes from the plant's spray gun, but at the work of the master;
• adopt a valuable experience as to how the uniform application of foam is ensured by movements;
• is the most important in the learning process - to observe how angles, bends, irregularities, cracks and joints are handled.

Tip: If there is no prior experience, then it will have to be worked on in practice - no one will teach to spray the mixture with a uniform thin layer. However, if you work hard with a confident hand, then the quality will be better than with an uncontrolled process, watching what happens in the end. To correct oversights is rather difficult, so it is better to start practicing on a remote vertical plane, and then foaming with the composition of inclined, horizontal and uneven surfaces.

Thermal insulation with PPU on the example of the balcony

Balcony - adjacent to the living room room, so good thermal insulation is very important. Thermal insulation with polyurethane foam is one of the most effective methods of warming. The mixture supplied from the spray gun qualitatively fills invisible cracks and cavities, through which dampness and cold air penetrate the balcony or loggia.

The process of insulation of adjacent premises is very simple. According to the installation instructions:

• out of the box we get the equipment;
• we connect hoses;
• shake the components;
• fix the nozzle to the spray gun;
• the choice of nozzle type is determined by the specific task( a narrow or wide jet of foam when fed under pressure);
• fill the foam first on the slit, then on the other machined planes;
• excess volume of foam in some areas can be cut after its initial hardening.

Balcony after heat insulation treatment, after a day can be brought to the final appearance with the help of any facing material.

Note: The warmer on the balcony, the higher the temperature of the components fed into the sprayer, the more effective the foaming. With "warm" foaming, the consumption of components will be less, and the applied layer looks much better, lush. Therefore, it is recommended to work at a temperature of more than 15 ° C.