In modern technologies for repair of apartments and country houses, an indispensable building material has become a mounting foam. Its emergency demand is explained by a whole set of characteristics, thanks to which the foam allows you to quickly, simply and conveniently solve many important tasks.
The mounting foam moisture resistant, provides excellent noise insulation, has low electrical and thermal conductivity, refractory, environmentally friendly, expanding, it fills in any emptiness, and can also perform glue functions when connecting various materials. Mounting foam is very easy to use, with the result that you can easily and quickly get joints and seams of the highest quality. Without use of the mounting foam, it is not necessary, perhaps, no one process of installing the window, or the door profile, not to mention the effective fight against cracks and slits in the surfaces of the houses.
Installation foam is indispensable when installing window profiles
There is one-component and multicomponent assembly foam: their difference is that in the first case, the foam is sold already in finished form as a mixture of several components in aerosol packaging, while multicomponent foam is supplied to the stores also in a single capacity, but divided into two parts - components of the substance and additives to them (catalysts, foaming means, etc.). Thus, in the case of one-component mounting foam, the chemical processes are partly occurred inside the package long before the use of foam in construction or repair. In a situation of use of a multicomponent foam, the chemical reaction begins only after the two parts of the balloon are mixed with each other as a result of shaking the cylinder immediately before use. Thus, the multicomponent assembly foam is significantly longer than one-component.
Also distinguish between the household and professional mounting foam - the methods of their application are fundamentally different from each other. If household foam does not require any additional devices for use, then it is possible to work with professional foam if there is a special pistol. Household foam is usually chosen when you need to eliminate some small slots and cavities, because after use, even if the contents remained in the cylinder, the foam will have to be thrown, since it is not provided for reusable. The container with the household mounting foam is equipped with a special adapter in the form of a tube with a lever. Through it, the foam goes out, after which it expands and occupies the volume of about two times more. The density of filling tank with household foam is significantly lower than in the case of professional foam, intended for use in large quantities, in particular, when installing door and window profiles. A pistol with which foam is fed to the treated surface allows you to dose the composition with greater accuracy and ensure the use of the cylinder to the end, while the residues of household foam often remain inside the container.
In the panel houses, it is often necessary to close cracks and gaps, as well as insulation the premises using a mounting foam
In addition, the mounting foam is issued with the calculation of work in different temperature modes: summer, winter and all-season. Summer mounting foam applies when the surface temperature on which foam is applied is in the range from +5 to +35 ° C, winter - in the interval from -18 to +25 ° C. All-season assembly foam has the widest range of applications: at temperatures from -15 to +30 ° C. And yet it should be borne in mind that the air temperature significantly affects the use of any mounting foam. The optimal conditions are the temperature of + 18 + 25 ° C with air humidity of about 70%. At a higher temperature, the outer layer of foam quickly solids and, as a result, its internal contents are frozen longer. If the temperature is too low, the composition becomes excessively viscous and not so effectively comes out. In any embodiment, before use it is necessary to wait 1-2 days so that the mounting foam is adapted to the specific room temperature.Buying a mounting foam, do not forget to also purchase a special flushing fluid to remove traces of foam from surfaces and tools.
When working with a mounting foam for the best result, it is necessary to take into account its defined properties: since it is quite difficult to wash it, it is recommended to use gloves, and when the foam hit on the surface, not intended for processing, immediately remove it with a rag moistened in a special solvent. In the course of the hardening of the mounting foam, it will not be touched by his hands. When the process of polymerization of the foam is complete, it must be closed from direct sunlight to the physical barrier, or with the help of plaster or staining.
For continuity of the jet of foam, the balloon during the work must be in a vertical position
The process of working with the mounting foam is conditionally divided into several stages:
1. Preparation, during which, to obtain homogeneous consistency, it is necessary to thoroughly shake the container with foam over, at least one minute;
2. Before applying the foam to a specific section, the surface must be sprinkled with water to ensure the best foam adhesion with the base;
3. Directly during the supply of household mounting foam, out to process the selected area so that the jet is not interrupted, the foam container should be kept in a vertical position up, and it is necessary to ensure that the first layer does not exceed 3 cm. Cracks, seams and gaps, Located vertically, it is necessary to process in the bottom upward direction.
4. After the final hardening of the first layer, the following layer can be applied, pre-mix the surface of the application.
5. When all the layers of the mounting foam are completely dried, it can be cut off, after which it is possible to close its surface from sunlight entering.
Working with professional mounting foam and assembly gun has its own characteristics. Before fixing the cylinder on a gun, you need to intensively shake it within 30-40 seconds, then remove the cap, flip the tank "head" down and fasten to the pistol thread. Before processing surfaces, it is better to make a test start of the mounting foam on a fragment of unnecessary paper, or a vet. Removing an empty cylinder and replacing it on a new one is also carried out in the pistol position to handle up, be sure to cleanse the design by means of a special flushing fluid. If, in the tank at the time of completion of the work there was still a foam, which is sorry to throw out, the adjustment screw should be tightly tightly, clean the hole of the gun from the residues of the foam and leave it connected to the cylinder. If the mounting gun in the near future is no longer needed, and the cylinders with the mounting foam are all empty, you need to fill the output channel of the pistol with flushing fluid, leaving it inside for 10-15 minutes to clean the tool from foam residues, and then drain the liquid outward. If necessary, the procedure can be repeated several times.
Unwanted traces of the mounting foam are best promptly and gently removed from the surfaces with a clean rag, or a napkin. If the foam managed to dry, the minimum amount of washing fluid is applied to the contaminated area, and wipe the traces with a wet cloth after softening the foam. To make sure that the flushing fluid does not hurt the surface to be cleaned, it is better to test the fluid in advance on any area, invisible for the eyes.
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