The scope of application of sealants and installation foam in the construction work

Simplicity and ease of use of such materials has earned them a very good reputation. Whether a standard silicone sealant or polyurethane foam, in our time, the assistants of the Builder doing a great job with the tasks. Today they are used for thermal insulation, protection from moisture, locking compounds, and other purposes, including purely aesthetic.


The most common sealants are acrylic and silicone. Silicone sealant characterized by high moisture resistance, elasticity and water-repellent properties. Some of its varieties have high heat resistance and can be used even in car repair purposes. In General, silicone sealant includes a reliable waterproofing of various joints and seams. Acrylic sealant is not water-resistant and, in General, worse than silicone, but not devoid of advantages. The place where was used the acrylic can be easily painted over without fear that the paint will not hold. At the same time, it is not suitable for places that are in prolonged contact with water.

Polyurethane foam

This tool can be used in a wide range of tasks. Polyurethane foam has a very high elasticity and excellent adhesion, that is, the adhesiveness to various types of materials, including to itself. Sometimes with its help solve the problem of sound insulation. It is water resistant and can easily tolerate low temperatures, but poorly withstands high. In addition, it significantly expands while drying and can exert unexpected pressure on the adjacent materials. Among the brands that produce high quality foam it is possible to allocate makrofleks.

What to choose?

Then, of course, should only come from characteristics of the used tools. Silicone sealant is often used in very wet environments. Acrylic is cheaper silicone and has compared them with the worst properties, but lends itself well to staining. Polyurethane foam, for example, often involved with the installation of doors and Windows. It fills the voids in building structures to preserve heat. Sometimes it is used as a glue. Some types of professional foams of makrofleks have advanced compared to the usual foam properties such as heat resistance. In most cases, each of the above products solve a range of tasks, although sometimes there are intersections.

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