“Cerezit SM 11”, the technical characteristics of which you can read below, is a dry mixture made on the basis of sand and cement. During the manufacturing process, modifying additives are added to the mixture, which are designed to fix products made of ceramics and natural stone. This composition is used in the implementation of facing works both outside and inside buildings.
Area of use
The described adhesive is intended for lining mineral non-deformable substrates like brick, plaster, concrete and cement. Surfaces that are supposed to be tiled can be in operation under conditions of periodic or constant exposure to water. Glue can be used in the arrangement of the underfloor heating system. This adhesive composition is also actively used when laying stone as well as ceramic tiles, the water absorption of which is 3 percent or higher.
Key Specifications
“Cerezit SM 11”, the technical characteristics of which should be read before purchasing the composition, can be used after kneading for 180 minutes. In order to know how much is needed for the work, it should be taken into account that about 1.7 - 4.2 kilograms will be needed per square meter. The final figure will depend on the thickness of the laid layer, as well as the material at the base of the decorative finish of the subfloor. It is important not only to choose the right adhesive composition, but also to observe the technology of its mixing. Thus, 0.24 liters of water will be needed per 1 kilogram of the mixture. And for 25 kilograms of dry composition, which is equal to one bag, you will need 5 liters of water. The master must observe the thickness of the recommended layer, which is 6 millimeters, when laying. Open time is 15 minutes, which is why it is important to lay the tiles until the mixture sets. The master has the ability to adjust the final position of the product after laying for 20 minutes.
Instruction for use
If you will use Ceresit SM 11 for laying tiles, the technical characteristics of which are presented in the article, it is important to take into account some of the nuances of the work. You can start grouting the joints one day after the completion of the manipulations on the lining. Do not start work if you cannot achieve the optimal ambient temperature, as well as the foundation. This range can vary from +5 to +30 degrees. As for the operating temperature, it varies from -50 to +70 degrees. If you need to take into account the quality of frost resistance, you should remember that Cerezit SM 11, the technical characteristics of which must be known before starting work, will be able to transfer 100 cycles of freezing and thawing.
Preparation of the base and method of use
Before proceeding with the application of the adhesive, it is necessary to clean the surface of dust, dirt, and oil stains. It is important to free the work surface from exfoliating areas, which may be represented by the old finish. If irregularities have been noticed, then they can be eliminated by applying plaster. Before you start lining, it is necessary to treat the base with a primer. Tile glue “Ceresit”, the technical characteristics of which will become known to you after reading the article, must be prepared according to the rules on the packaging. The dry mixture is poured into a container in which pure water is located. After you can start mixing until you can achieve a homogeneous mass. In this state, the mixture is left for 5 minutes, and then mixed again, then we can assume that the solution is completely ready for use.
Professional Recommendations
After the solution is ready, with the help of a notched trowel, it should be applied to the surface. Tiles are laid on the formed adhesive layer, after which the product is carefully pressed to the base of the wall or floor. It is recommended to store glue in a closed container for six months from the date of manufacture.
Main advantages
Ceresit CM 11 Plus, adhesive for attaching ceramic tiles, has a number of undeniable advantages. Among them, we can distinguish the absence of the effect of creep of the composition when used on a vertical surface. Among other things, the composition can be used at sub-zero temperatures. The mixture is so popular among consumers also because of the lack of restrictions on use in high humidity conditions. You can count on economical consumption when applying. Specialists and private masters emphasize that the glue is convenient in the process of preparation and application. “Ceresit CM 11” - adhesive for tiles, the properties of which are presented in the article, is completely harmless to human health, since it does not contain harmful substances and toxic impurities.
Additional properties
It is important to note that the application of glue can be done on the plastered surface and cement screed, after the formation of each of which 28 days have passed. As for concrete substrates, it is possible to start work on such surfaces 90 days after the completion of work. In order not to encounter problems during operation, do not start manipulating the decoration of deformable substrates. This adhesive composition is also incompatible with products whose water absorption is less than 1%. If there is a need to lay tiles in rooms with high humidity, with regard to showers and bathrooms, the Ceresit CM 11 adhesive mixture, the technical characteristics of which are presented in the article, can be used only if the humidity is periodically increased, as well as intensive ventilation. It is important to properly prepare the bases that have large crevices and potholes. The craftsman must grind and level the surface using plaster or mineral filler.
Use of Cerezit SM 11 glue in tandem with an elasticizer
“Cerezit SM 11 plus”, the technical characteristics of which will become known to you after you read the article, can be used for arranging heated screeds on parapets, socles, entrance groups, outdoor stairs, terraces, balconies, as well as exploited roofs, however in this case, the adhesive must be used in conjunction with a CC 83 brand elasticizer. The mentioned additive is used when there is a need to use the described adhesive on deformable substrates, namely gypsum boards, chipboards ah, and OSB. The combination of glue and elasticizer allows the composition to be used in indoor and outdoor pools and tanks. Experts recommend the use of such technology on ceramic claddings when carrying out both internal and external works. This can even include glazed products. This solution is also suitable for paint coatings, which are characterized by a high degree of strength and excellent adhesion. If you are faced with the task of using the adhesive composition on anhydride or gypsum substrates, as well as lightweight cellular concrete, whose age starts from 1 month, then the recommended addition to the composition in the form of an elasticizer is an indispensable solution.
The nuances of the work
If you will use “Ceresit SM 11”, technical characteristics, the price of which is indicated in the article, it is important to take into account the moment that the consumption of the composition will depend on the depth of the teeth of the tool used for applying the mixture. Before mixing, it is necessary to heat the water to 35 degrees. When mixing, it is recommended to use a special construction mixer, which will achieve a homogeneous consistency. You can use a grater or putty knife during work, depending on what is more convenient for you.
Conclusion
It is important to exclude the possibility of overpayment for the adhesive. That is why before buying it is recommended to calculate the approximate amount that will be needed for the finishing work. For a 25-pound bag you will have to pay 250 rubles. In order to ensure even more economical consumption, the surface should be carefully prepared. It should ideally be as even as possible. Carrying out such manipulations will cost less in comparison with the purchase of glue.