Despite the fact that polyurethane foam has not existed for so long in the consumer market, it is in great demand both among professionals and amateurs. This is due to the fact that this sealant is very easy to use and very effective in its functionality.
Release form
Production foam in cylinders is produced, the volume of which, as a rule, is 1 liter. For 1 \ 4 the cylinder is filled with compressed gas, and the rest is filled with a special polyurethane component. Basically, the foam is designed to fill various cracks, chips, holes and other voids that need to be closed.
Based on the characteristics, the correct name of this material is polyurethane foam. Today, the market is filled with various types of substances used for hermetic sealing of joints obtained during the installation of doors, windows, etc., but this foam is the easiest, simplest and most effective method for such purposes. It stands out among other materials in that it does not let air through, is very resistant to external loads (such as wind or mechanical stress), very tight, easy to use and affordable in price categories. However, using it in too large volumes can lead to sad consequences.
Polyurethane foam - characteristic
When the foam hardens, it is inherently converted to chemically stable
a substance called polyurethane foam. Initially, it is made from the following components: polyisocyanate, catalysts that accelerate the chemical process, propane-butane mixture, as well as those materials that increase resistance to fire. It is divided into two types: one-component and two-component. In addition, there is a winter mounting foam and summer, as well as domestic and professional. They differ from each other in the degree of fire resistance.
When polyurethane foam only appeared on the market and builders began to use it, it immediately attracted the attention of specialists with such characteristics as sound insulation, high sealing properties, thermal insulation, installation properties. But in order for the use of polyurethane foam to be beneficial, it is necessary to use it, observing technological recommendations.
Choose the right one
Today, there are many manufacturers of polyurethane foam, as well as its various varieties with different characteristics. When you decide which one to purchase, it is worth considering some recommendations. For example, an indicator of the volume of foam output, which is indicated on the cylinders, is not a determining criterion. This is due to the fact that this indicator indicates the amount of substance that is obtained under ideal environmental conditions: a certain air temperature, humidity, pressure, etc. The working environment at construction sites or garden plots can vary significantly, which means that professional installation foam is not suitable for everyone. In addition, remember that the volume of this material at the outlet is always more than a third of amateur sealant. Also, when choosing a balloon with foam, pay attention to the weight of the balloon itself. Its standard is 900 grams.