Assortment of adhesives for tiles is quite significant. Given the basis on which they are made, they are classified into 4 groups. Each is characterized by its own peculiarities and specific application. We will deal with one type of this product - polyurethane adhesives.
Material features
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The composition of the polyurethane adhesive is one- or two-component. In the latter case, you must prepare the mixture before use. This is done by mixing the contents of the 2 containers in the package. - Has sufficient elasticity.
- Resistant to virtually all chemical compounds, including aggressive ones.
- Is able to effectively bind a variety of materials( including, and heterogeneous) - wood, leather, stone, metal, glass and a number of others, and from this point of view is truly universal.
- Moisture absorption is practically non-existent, able to withstand significant temperature changes( from -55 ºС to +125 ºС) and pressure.
- Provides not only high-quality gluing of tiles, but also reliable insulation of the substrate. Such compounds are considered to be the most reliable( as they say, they are taken "to death") in comparison with other adhesives.
- Differs fast "strengthening" of the joint to be joined( seam), which in many cases makes it possible to significantly speed up the pace of repair( finishing) works.
- The absence of a specific odor, which is typical for almost all analogues and is considered a significant disadvantage.
Given this feature of polyurethane compounds, as versatility, there is quite a logical question - and what is the difficulty in choosing such a glue for tiles? Enough to buy, and please, work. But there are some nuances, and you should know about them.
Firstly, , all polyurethane compounds, even sold under one brand, have some special features in application. Nothing "absolutely universal" can not be, in principle, whatever issue it may concern. So with glues. All of them can be used to solve various problems, but the specificity of their preparation and the components used( including their share ratio) determine some "sharpening" of the final product under certain conditions.
In other words, each kind of this product somewhere will show all its properties more effectively, and somewhere - less.
Secondly, , given that the adhesive is purchased for a specific purpose, you do not have to overpay for the whole "set of its functionality," especially since all the specific capabilities of the material, as a rule, are not needed at the same time. This rational approach to buying allows you to optimize costs.
Selection Criteria
In principle, for those indicators that will be indicated below, you should pay attention when purchasing any adhesive. Therefore, it will be sufficient only to remind them and briefly explain certain points.
Maximum open time
This is the interval during which the applied compound retains ductility, ductility, does not solidify. That is, the time for which you can make any manipulations with the glued samples( tiles and base) without risk of damaging anything. If the experience in such work is not enough, then you have to constantly correct something, trim it.
This indicator can be designated as "correction time".In principle, the same thing.
"Flowability"
Quoted in quotes, as this characteristic is called differently( "resistance to slipping" and the like).On it it is necessary to pay special attention in two cases. Firstly, , when the tile fixing is made on a vertically oriented base. Secondly , if the treated surface is porous or characterized by a large number of shells, cracks and other similar defects.
Suitability for use
This refers to two-component formulations. Sense - for how many hours after mixing the paste and hardener, the polyurethane adhesive retains all its original properties( viscidity, etc.)?The volume of the prepared composition also depends on this. It is especially important if the work is accompanied by any technological interruptions.
Consumption per surface unit
This value is the same for almost all adhesives for tiles, but to clarify after all( if there is a choice) follows, since there are separate nuances.
Specificity of application
Here everything is quite simple: some formulations are more suitable for "warm" floors, others - for stickers on the substrate, subjected to periodic vibration, deformation and so on.
The cost of
To orient yourself in pricing, it is enough to mention several varieties of polyurethane adhesive for working with tiles as an example:
| 350 | 2-component | 5 | from 2025 |
| «KERALASTIC» | 10 | from 5 390 | |
| «Kiilto Ultra» | 20 | from 1 005 |
