For example, if we talk about the concrete field, the specifics of its operation obliges to take measures to protect it, otherwise it will begin to wear out quickly and will already require major repairs in speed. To prevent this, special impregnations of concrete are used, which penetrate deep into the bowels of concrete and make it more resistant to negative factors. Impregnations make concrete more durable, wear -resistant and, moreover, more resistant to moisture, pollution and chemical compounds.