Choosing the type of substrate, adhesive, the type of tiles, their format (dimensions and thickness), where the tiles will be used, and the environment for which they will be installed are all factors that play a part in deciding the type of glue that will provide the most durable and dependable connection. For the purpose of installing this kind of material, it is recommended that high-adhesion cementitious adhesives be used, which are designated as class C2 in accordance with EN 12004. This recommendation was made earlier in Section 3, and it is important that we follow the regulations that are currently in place. According to EN 12004, the use of reactive adhesive, also known as class R2 adhesive, is preferable when applied to a variety of substrate varieties.
Standards invariably demand the use of deformable adhesives that fall into either class S1 or S2 according to EN 12004. Adhesives of the class S1 should be used for medium-sized formats, whereas adhesives of the class S2 should be used for large formats because these materials are extremely deformable. For the purpose of determining an adhesive's deformability, flexural tests, which evaluate transverse deformation and are described in EN 12004 - ISO 13307, are utilized. An adhesive sample is subjected to a load test, which is illustrated in schematics 1 through 3 that are provided below. If the sample is to be classified as S1, its deformability must be at least 2.5 mm, and if it is to be classified as S2, it must be at least 5 mm. When installing tiles in environments that need the use of adhesive with an extended open time, it is preferable to work with products that fall within the EN 12004 class E umbrella. Class F adhesives are your best bet when you need a short setting time and robust adherence within a few hours after applying the glue. In order to successfully install large format tiles, one of the most important prerequisites is for the adhesive to ensure a high level of wetting of the back of the tiles. This is necessary to prevent gaps from developing between the tiles, which could compromise the integrity of the bond as well as its longevity.
In light of the fact that these particular kinds of tiles shouldn't be tapped down too firmly (due to the fact that there is a risk of them breaking due to the high overall size/thickness ratio), Mapei has developed a formulation for adhesives that features ULTRALITE technology in order to guarantee high wetting of the tiles. Because they have a lower density than traditional formulations, adhesives made using the ULTRALITE technology are referred to as lightweight adhesives. This is because of the technology's name. The advantages listed below are some of the many that come with using adhesives from the ULTRALITE line: higher yield; lower transport costs; bags of adhesive are lighter (only 15 kg for the same volume, as opposed to traditional bags weighing 25 kg); the mix has a "creamy" consistency that gives it excellent workability and speeds up application; due to the fact that this is a "lightweight" product, the weight of the adhesive applied to the back of the tiles has very little impact on their overall weight. large capacity for water absorption on the reverse side of the tile; Friendliness to the environment: these products help in gaining LEED points and contain more than 20 percent recycled materials; outstanding adhesion to all substrate types that are usually used in the building sector; The ULTRALITE range of white adhesives has one of the highest white balances in the industry.
To achieve a high level of wetness, it is necessary to apply an adhesive in the form of a dense layer (the full wet bed method), utilizing the double-buttering method. The following tables reflect Mapei's deep industry knowledge and take into account the most recent industry standards. It comprises a list of recommended Mapei installation adhesives and their applications, which vary depending on whether tiles are placed on walls or floors, whether they are installed inside or externally, and what kind of substrate material and tile format are being used. Tiles for the interior floors and walls of buildings can be installed on the following kinds of substrates, provided that the tiles have been prepared in accordance with the instructions in section 4. For the installation of internal floor tiles, acceptable substrates include cementitious screeds, anhydrite screeds with a residual moisture content of less than 0.5% in weight. (after applying PRIMER G or ECO PRIM T), heated screeds, preexisting floors, high performance screeds made of TOPCEM, TOPCEM PRONTO, MAPECEM, or MAPECEM PRONTO, and surfaces waterproofed with MAPELASTIC line products or MAPEGUM W
After the heating system has been activated and run for some time, tiles can only be laid on screeds that have embedded heating components after the heating system has been turned on. There are many different kinds of internal wall tiles, and they can be installed over cementitious render, gypsum-based render (after first applying PRIMER G or ECO PRIM T), plasterboard, cementfibre panels, ancient ceramic, and stone. The installation requirements included in the aforementioned tables are merely intended to serve as generic guides for conditions that are most commonly encountered. For further information, please refer to the specific Technical Data Sheet that corresponds with each product. When figuring out the most effective method of installation, the format of the tiles and the specific conditions of the location both play significant roles. In the event that you have any questions regarding unique installation conditions, please not hesitate to get in touch with Mapei Technical Services or study the appropriate technical literatureOur professional exporting team would be glad to cooperate with all traders and importers from anywhere on earth.