Macroflex cement foam has recently been used by professionals and home craftsmen quite often, so its name can be considered a household name. This is due to the high quality of the composition and reasonable cost, convenient form of release, as well as unique properties.
Specifications
Cement foam can be used in the temperature range from +21 to +25 ° , however, the manufacturer allows it to be used when the thermometer is between -5 - +35 ° . If you compare with traditional mounting mixtures, this indicates that you get more options for working in the offseason.
Macroflex cement foam has a density of 20 kg / m 3 . The film on the surface after application is formed after 9 minutes. The minimum value is 5 minutes. Full hardening should be expected in 30 minutes, however, under certain conditions, this stage lasts only 25 minutes. The change in volume is 5% and can vary in a positive or negative direction. Water absorption per day is 1% or less, whereas in 28 days this indicator can increase to 10%, but not more.
Macroflex cement foam is also characterized by good sound absorption, this parameter is 60 dB. It is important to take into account thermal conductivity, it varies from 0.037 to 0.40 W / m × K. After solidification, the heat resistance is in the range of -40 to +90 ° C. Without loss of properties, an extremely high temperature of + 10 ° C can act on the foam for a short time.
On grip strength
The use of polyurethane foam with the addition of cement perfectly demonstrates itself when gluing wood, as well as polymers and materials from woodworking products. For example, if you fasten the wood with foam cement, then the strength will be 2 MPa. The adhesion strength of granite with cement has the same indicators. During work, when PVC and ABS plastic are used for bonding, it can be argued that the strength will be 1 MPa. This adhesion is comparable to the adhesion of concrete and cement mortar.
Sometimes in work there is a need to use materials that are not distinguished by high porosity. In this case, the average adhesion strength reaches a value of 0.3 MPa. This includes ceramics, glass and concrete. With approximately the same strength indicators, the composition will bind OSB boards together. Polyfoam and bitumen coatings adhere somewhat worse, with adhesion of 0.2-0.25 MPa. Macroflex foam cement is less reliable when it is necessary to glue drywall, galvanizing and mineral wool. If the layer of the mixture is 8 mm, then we should expect strength in the range of 0.10-0.15 MPa. Therefore, these materials can only be bonded if they are not loaded during operation.
Application area
For the reason that the area of use of the described material involves external work, the ability to use at low temperatures is a useful property. You can purchase this material if necessary, linking building blocks to each other. The composition will also cope with the fixation of insulation panels to external walls and the foundation. Macroflex cement foam, the application of which is quite extensive, copes with the installation of stair steps and is used in the installation of window sills.
Key Features
The described material is able to replace cement-like mixtures and the cement itself. After the acquisition, the cylinder is completely ready for use and convenient to operate. Using foam, you can connect building materials with each other, and the composition is suitable for internal and external works.
Makroflex (foam-cement) is a building material that not only glues effectively, but also guarantees heat, sound insulation and tightness. You can use the mixture at low temperatures. Due to the fact that such an innovative product has recently appeared on the shelves, one can refuse heavy bags, waste energy, water, and additional equipment. Work will no longer be accompanied by the appearance of dirt and dust, you will reduce the time for additional work to clean the room.
The product will help to perform work with less effort and can reduce the time spent. A new product recently released by the company - Makroflex professional construction foam cement, 850 ml - eliminates the occurrence of cold bridges, guarantees high strength of joints and meets the requirements for mortar EN 998-2. Consumers choose this product also for the reason that it does not contain chlorofluorocarbon propellants.
Cost
If you need the brand "Macroflex" foam, the price of this product should be known to you. For a 0.85-liter cylinder you will have to pay 450 rubles. This mixture is universal, and its weight is 0.99 kg. The product is a one-component aerosol polyurethane foam, which hardens under the influence of moisture and is characterized by ultra-efficiency and versatility.
You can apply the composition using a special applicator gun. After drying, “Macroflex” (foam, the price of which you already know) needs to be protected from sunlight, you can apply paint, gypsum, sealant or mortar to the surface of the composition. Other types of coatings are sometimes used.
The main pros and cons
The main advantage of the described mounting mixture can be considered ease of use. Foam is easy to apply, as well as simply controlling the amount of composition. In doing so, you will eliminate overspending. The glue will reliably insulate the seams from moisture and reduce heat loss of the building. However, Macroflex cement foam, the characteristics of which were presented above, has some disadvantages. They are expressed in large shrinkage, but the foam initially does not have a very large expansion volume. Therefore, it will not be so noticeable.
From the high density one more minus follows, which consists in a large consumption of the composition. Before purchasing a mixture, you must calculate the required volume. Thus, one cylinder will be enough for 10 m 2 of brickwork, the dimensions of which are 60x25 cm. In this case, the walls will be 11.5 cm.
Conclusion
The foam-cement, which was described above, is excellent for erecting jumpers and restoring block masonry. You can use the composition for the installation of window sills, stair elements, as well as frames. With its help, finish and insulation of surfaces with plate materials. Consumption will depend on the foundation with which to work. One cylinder will be enough for gluing gypsum panels, the area of which reaches 12 m 2 .