Mounting foam - universal insulating sealant, irreplaceable in modern construction and repair work. The building materials market offers the buyer a huge range of mounting Pen with various performance characteristics. How not to be confused in this diversity and decide on the choice?
1
Most often in building materials stores there is a single-component mounting foam. It is produced in metal aerosol cylinders and is an active mixture of liquid polymer and liquefied gas-oscillator (propellant). When spraying, the composition turns into a stable foam and is repeatedly increasing in volume. A few minutes later, the foam mass is converted into a dense material with a porous structure.
2
The scope of polyurethane foam is very extensive - from the sealing of hard-to-reach holes and gluing individual elements of structures to noise and thermal insulation. An important advantage of foam sealant is that it provides high-quality clutch with almost all building materials (stone, wood, metal, glass, concrete and plastic).
3
The choice of mounting sealant directly depends on the scope of its application. There are two types of construction pins - household (adapter) and professional (pistol). Household foam is a real find for lovers' beginners. It is quite easy to use and does not provide for the use of additional tools - for spraying the composition on the cylinder valve, an attached plastic tube with a special lever (adapter) is screwed. It is thanks to the thin "spout" of the adapter foam composition conveniently apply locally to the necessary sections. Such a sealant is most often used for draft and small in terms of work - filling out emptiness and cavities, sealing cracks and cracks.
4
The component compositions of household and professional foam sealants are similar, however, more qualitative reagents are used to manufacture the latter. Profi-cylinders have a special applicator ring for installation mounting pistol (Such a tool is sold separately from the sealant and is quite expensive). Due to this device, it is possible to dose the output of the foam mass, as well as control the power and pressure of the jet. Professional foam is suitable for reusable, therefore, it is most often used by builders and finishing, which use the compositions of this kind often in solid volumes.
5
All foam sealants differ in density. The density of household compounds is about 2535 kg / m³, and professional - from 1525 kg / m³. To assert what indicator is better, it is impossible, it all depends on the goals and tasks. However, it is worthwhile to take into account such a nuance: the less the density of the composition is the greater the foam at the exit, which is why less dense sealants are preferable to fill the large space. In other situations (for example, for the insulation of narrow seams) it is better to use a foam of greater density.
6
Also, mounting foam are classified depending on climatic conditions of application. There are "Winter" (recommended for use at temperatures from -10 to -35 ° C, with the higher the air temperature, the smaller the amount of sealant gives the balloon), "summer" (give the maximum volume at a temperature of +5 to + 35 ° C) and "all-season" compositions (apply in all conditions). All information relative to the temperature mode of use is usually indicated directly on the cylinder.
7
Before buying polyurethane foam sealant, you must pay attention to its shelf life (than "older" composition, the thick of its structure) and the appearance of the cylinder (it must be without any mechanical damage, dents and chips). Acquire the mounting foam better in specialized stores. Unfortunately, the likelihood of a low-quality product is great in the natural markets.
Now you know what moments you need to pay attention when choosing a mounting foam.
Surprised that there is no Kudo foam. They do a good foam, certainly better than macroflex. In the macroflex, a big overpayment for the brand. Horror. We compared Kudo with her, damn, Kudo and lay better and the extension is secondary more predictable.
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Surprised that there is no Kudo foam. They do a good foam, certainly better than macroflex. In the macroflex, a big overpayment for the brand. Horror. We compared Kudo with her, damn, Kudo and lay better and the extension is secondary more predictable.