Waterproofing "Mapei": field of application and composition

The company "Mapei" is an enterprise that acts as the world leader in the manufacture and sale of building materials. She started her work in 1937 in Italy. Already today the concern owns more than fifty plants, which operate in different countries around the globe.

Product range

In the assortment of the company's products it is possible to find more than 1000 items, which allows solving the most complicated tasks in the construction. As an example, the waterproofing "Mapei", which is intended for professional use, can be considered. Materials for waterproofing this brand are:

• Epoxy waterproofing;
• Bitumen waterproofing;
• Waterproofing cords and ribbons;
• Polyurethane waterproofing;
• Waterproofing on cement basis.

Application area

Waterproofing "Mapei" excellently proved itself in the construction of various structures, swimming pools, as well as buildings for residential and industrial purposes. Materials can be used for indoor and outdoor insulation of basements, foundations, bathrooms and shower rooms, as well as communication channels, balconies, shower cabins and terraces.

The material acts as a reliable protection for different structures by the type of plaster, gypsum boards and ceramic tiles. Waterproofing "Mapei" has found its wide application in the field of industry, it is used for insulation of concrete surfaces of tanks, transport facilities, chimneys, concrete and brick tanks, and reservoirs for drinking water. The described waterproofing can excellently protect concrete, which has become covered with cracks in shrinkage. This can occur as a result of infiltration of water or under the influence of aggressive agents, as well as in contact with sea water and salt.

Waterproofing composition

Waterproofing "Mapei" is a two-component composition, among the ingredients of which is component A and liquid component B. In the first case we are talking about a mixture of fine-grained aggregate, special additives and cement binder, while in the second case we are talking about synthetic water-dispersion polymers. To obtain a homogeneous mass, the components must be mixed, and the solution can be applied to vertical and horizontal bases using a spatula.

Synthetic resins in the composition are of excellent quality, so they retain water resistance and elasticity under arbitrarily difficult conditions, which is true even if the pressure reaches 1.5 bar.

Recommended Materials

The mudproof waterproofing "Mapei" has a high elasticity, perfectly adheres to different surfaces, among which:

• ceramics;
• masonry;
• marble;
• concrete.

These characteristics, in conjunction with the resistance to solar radiation, allow the material to be used even in industrial regions, the conditions of which are characterized by air pollution. Quite often the waterproofing of this manufacturer is also used in coastal areas, the air of which contains a large number of salts.

Varieties of waterproofing "Mapei"

Waterproofing "Mapei" two-component is distinguished by the absence of shrinkage, it can be used without first applying a primer. The material is represented by two varieties, each of which has a special purpose. If the surface is exposed to negative or positive effects of water, the work should be carried out using the Mapelastic Foundation. But for bases that are under the influence of a positive water pressure, Mapelastic Smart is usually used.

Recommendations for use

In order to achieve a positive result when using the described waterproofing, it is recommended to apply it in a thin layer up to 2 mm. If you increase this figure, then the elasticity may be impaired. Do not start work if the thermometer has dropped below +8 ° C.

The solution does not need to add foreign ingredients like water or cement, and after application, the layer should be protected from water ingress. Such recommendations should be adhered to during the day. "Mapei" - waterproofing, which can be used to work with flat roofs or terraces.

Nuances of use

If they do not plan to lay the tile, then the surfaces should be supplemented with deflectors, one will be enough for 25 m ² . However, the final amount will depend on the level of humidity at the surface. These actions are recommended for waterproofing surfaces that are highly absorbent. Among them, there are screeds lightened with expanded polystyrene or expanded clay.

Application technology

Waterproofing "Mapei", the use of which must be done according to the instructions, is applied to the previously prepared grounds. Care should be taken to ensure that the surface does not have any damage and cracks, it is firm and clean. Before starting work, the substrate is moistened. Preparing the solution, the liquid component must be placed in the container, adding a dry ingredient. The composition is mixed using a mechanical stirrer, which is set to low speed. This condition is important for eliminating the saturation of the solution with air bubbles.

The mixture is mixed for several minutes until uniform, the powder on the bottom of the vessel should not be precipitated. Before filling the pump with a solution, it is important to make sure that there are no lumps in it and it is completely homogeneous. The application can be carried out by means of an atomizer or operated manually. The viability of the waterproofing will be preserved for 60 minutes. All subsequent layers should be applied only after the previous ones have dried, the thickness of the layer should not exceed 1 mm.

In addition to the waterproofing "MAPELASTIC"

Increasingly popular recently is the waterproofing "MAPELASTIC". "Mapei" - two-component waterproofing, which can be purchased for 4500 rubles. For this cost you will receive 32 kg of material that is resistant to anti-icing salts, CO ₂ , chlorides and sulfates. Use the material you need to process retaining walls and precast concrete elements that will be buried in the ground.

Quite often the material is used for surfaces that have been plastered with plaster and cement based compounds. Suitable material for waterproof plywood, as well as plasterboard. It is applied in two layers of waterproofing two-component "Mapei". Rostov-on-Don offers this material at the above price.

In the first layer it is necessary to lay reinforcing mesh, which is resistant to alkali. The second layer can be applied after the first one dries. At the interfaces, a waterproofing tape is glued, whereas in the places of pipe and drain outlet - waterproofing plasters. In the first case we are talking about the connections of the wall with the floor or the wall with the wall. Reinforcing elements after drying the first layer are covered by a second layer of material. Once the surface dries, you can start laying the tiles.

Is a product for professional use waterproofing "Mapei". "MAPELASTIC" has the form of a gray powder with a specific gravity of 1.4 g / cm ³ . The characteristics are designed to use waterproofing at a temperature of +23 ° C, while the relative humidity should be 50% or less.

For mixing it is necessary to use a proportion of 3 to 1 (respectively, components A and B). Thus, 24 kg of the first ingredient will need 8 kg of the second.

Use the composition is recommended at a temperature of +5 to +35 ° C. After 28 days at +23 ° C the ability of the mixture to elastic stretching is achieved. At the same humidity should not fall below +50%.

If you plan to carry out manual application of the material, the flow rate will be 1.7 kg / m ² . With the machine method, the flow rate increases to 2.2 kg / m ² . "Mapei elastik" - waterproofing, which should not be applied by a layer thicker than 2 mm in one layer. If waterproofing is used to repair the bases that will be in contact with drinking water during operation, after solidification, the material must be washed several times with warm water, the temperature of which is 40 ° C.

Additional recommendations for application

If you plan to protect the concrete with waterproofing, then its surface must first be checked for strength. The base is cleaned of the remnants of cement milk, and dust can be removed manually or mechanically. If there is a base that is contaminated with grease or oil, sandblasting or hydro-washing can be used for cleaning.

It is necessary to remove rust from the surface well, and the damaged parts are pre-repaired with special compounds. If you want to work with surfaces that absorb water well, then the base must be saturated with liquid before starting work. Waterproofing "Mapei", the mesh with which it is used, should be applied to the surface, previously cleaned from paint, grease and wax, and if it is a question of cement plaster, then it should be kept for a week for every centimeter of thickness.

After the work is finished, the dirty instruments are washed in water, this must be done before the composition hardens. If this has already happened, then the working tool is cleaned mechanically. It is not recommended to prepare the composition manually. This is especially true if large surface areas are to be treated.

Conclusion

When it is planned to work by manual application of waterproofing, a smooth spatula should be used to form the first layer. The second layer should be applied in such a way that the total thickness does not exceed 2 mm.

When processing balconies, terraces and swimming pools in a fresh first layer, a fiberglass mesh is installed. The dimensions of its cells should be as follows: 4.5 x 4 mm. This mesh is recommended for application if there are large cracks on the surface, and also if the substrate is subjected to intensive loads.