Installation foam. Subtleties of use

Modern construction sites are not without the use of mounting foam, the technical characteristics of which played an important role in its mass use. Professional builders and amateur masters who decided to cope with repair work on their own, have not recently represented the installation of doors, window sills and windows, as well as construction measures related to the waterproofing of the pipeline and large containers, for example, water heating tanks and baths, without the use of mounting foams , the technique of which will be considered in the article.

Content

Mounting foam: operational characteristics

The widespread use of mounting foam, first of all, is due to its operational characteristics that allow you to consider this material indispensable in almost all types of construction work. The main properties of the mounting foam, simultaneously recognized by its advantages, which each builder was able to evaluate, are as follows:

The ability to use as a sound and heat insulator;
High resistance to moisture and low conductivity of electric current;
The operational features of some types of installation foam indicate resistance to fire;
The ability to fill the voids and various cracks after expanding, providing high quality seams and joints;
The possibility of gluing through mounting foam of elements from various materials.

Varieties of mounting foam

To date, manufacturers offer several varieties of foam of mounting polyurethane, among which the following varieties are of interest for builders:

Professional mounting foam, for the use of which a specialized device is used, which allows you to increase the output of polyurethane sealant and extend its use;
Household or semi -professional polyurethane mounting foam designed for one -time use. In addition, the main difference between domestic sealant is the significantly lower density of filling the cylinder.

According to temperature conditions, in which the installation of mounting foam is permissible, the video with its use is presented in the article, the following varieties are highlighted:

Summer mounting foam is used if the temperature of the processed surface varies from +5 to +35 degrees;
Winter mounting can be used in winter, as it withstands the temperature of the processed surface from -20 to +30 degrees;

The mounting all -season is characterized by a combination of the properties of winter and summer modifications. The operating temperature of the all -season foam is in the framework of -10 to +30 degrees.

Moreover, the builders who prefer the mounting foam, the manufacturer suggests paying attention to a separate variety of polyurethane sealant, which is characterized by special functional parameters of the mounting fire fighting foam. The use of non -combustible sealant, which retains its operational characteristics when exposed to high temperatures and even open fire, is practiced in the construction of objects, the fire safety of which is the highest requirements.

How to choose a polyurethane sealant?

Choosing a mounting foam, the price of which depends on the quality, it is important to focus not only on the manufacturer, but also on the external characteristics of the cylinder in which the sealant is realized. The container with the best mounting foam is much heavier, and its contents when shaking are rolled from one end of the cylinder to the other, and the price will say for itself.

Factors affecting the consumption of mounting foam

An important parameter recommended that experts in the process of choosing a sealant are considered to be the consumption of mounting foam. It directly determines the amount of material that needs to be purchased for certain work and is determined by a large number of external and internal factors.

Internal:

The manufacturer of mounting foam, on which one of the important technical parameters of the material is primary expansion. In accordance with it, strongly expanding modifications are distinguished, which include most domestic sealants, for example, installation foam of the titanium. In addition, manufacturers offer installation foams with medium and low expansion, suitable for more delicate work, among which the Macroflex installation foam can be noted, which has all the above properties, as well as the installation foam, characterized by minimal toxicity.

External:

Ambient temperature;
The material used for the manufacture of the processed surface is recognized as one of the fundamental parameters, which must be taken into account when calculating sealant consumption.

Instructions for the use of mounting foam. The main subtleties of use

Regardless of what kind of installation foam you prefer, whether it is professional or household, before using a foam cylinder is pre -heated in hot water and carefully shake it. This is done in order to mix the components of the sealant, and thereby increase the output of the mounting foam, the photo using which is presented in the article.

Further actions depend on the modification of the selected polyurethane sealant.

If this is a semi -professional foam, then a tube is put on a cylinder that comes with it, while a cylinder with professional foam requires the installation of a gun on it after removing the cap from it.

It is important to remember that a regularly functioning gun is able to ensure the safety of unused foam within 3 days.

After preparing the material, it is necessary to take care of the thorough preparation of the working plane, which will further be used to apply sealant. Experts advise cleaning it of dirt and dust particles, as well as moisten with water, accelerating the polymerization of the precursor of polyurethane, which is part of the sealant. In addition, this contributes to the speedy sticking of the mounting foam to the processed surface.

The process of applying polyurethane sealant is not difficult, the only thing that you need to pay close attention to the correct dosing of the foam exit from the container.

In this regard, it is easier to work with professional foam, the cylinder with which is equipped with a special gun that regulates the output of the sealant using a valve. In the case of using household cylinders, this process is regulated by pressing the cylinder on the valve. It is important to consider that in the process of applying foam to the surface, the cylinder must be kept vertically down.

After applying the sealant, it is necessary to wait for its complete drying. According to the manufacturer, the full polymerization of the material occurs within 6-7 hours, however, its final hardening often depends on the volume of the foam used and can drag out until 11-12 hours.

After the mounting foam froze, many are wondering: how to remove the mounting foam?. This event also does not require special skills. Excess foam remaining after its solidification is cut off with a file for metal or a sharpened knife.

In the event that the mounting foam was used on the street, after its final drying and subsequent removal of the excess, it is covered with a cement mortar or plaster. It also does not prohibit its coloring that protects from the effects of ultraviolet radiation. The need for this event is due to the high sensitivity of even the best mounting foam to ultraviolet radiation, contributing to a change in color and premature destruction of the material.

If when applying installation foam, she fell into your hands, do not panic. It can be removed using a solvent used to flush the gun.

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