1. Preparation of base surface.

The base surface has to be quite compact and spalling proof. It must neither be covered by plaster nor coated by paint nor cause another problems. If we acknowledge this base surface as capable for facing, it is possible to start with the preparation for glue spreading.
The base surface has to be cleaned, degreased and dusted has to removed in order to prevent rise of separating layer which could cause the falling of facing.
It is the best to penetrate the base surface with special penetrating coat ensuring the above mentioned properties and preventing from undue absorption of glue into the base surface.

2. Preparation of gluing.

a/ At first, choose a proper glue.
b/ Mixing the glue with water in a vessel with sufficient volume using a proper tool. The ratio of glue and water has to be kept according to manufacturer specification. Leave the glue mixture to settle for several minutes in order to prevent from its premature withering. The quantity of mixed glue should be corresponding to ability and skill of workers.
c/ We prepare then the notched spatula with proper notches. Their size for facings IMIT® should be according to weight and size of used facing elements 8 up to 12 mm.

3. Spreading of glue.

a/ The glue is spread by notchless side of spatula on the penetrated base surface approx. 1 hour after penetration in the layer corresponding to the size of chosen notching. Care about the adequate size of surface area; in the case of too large area, the glue can get dry (i.e. to make “skin”). Begin therefore always with a smaller area.
b/ Pull then the notched side of spatula several times crosswise over the spread glue on surface area; everything is now ready for glueing of first facing elements.

4. Glueing of strip facings.

a/ The glueing of own facing elements should be realized very sensitively i.e. neither with forcing nor with hammering by rubber mallet. For setting of facing elements and their perfect attachment to the glue, it is much better to place them by uniform pushing to glue at simultaneous moving up and down.
b/ At the use of corner elements, we start the glueing always just from them. We can choose various kinds of bonds, however the most simple bond results from the use of corner elements.
c/ The facings IMIT® can be glued either with the gaps or without them. The package of 1 m² in cardboard is corresponding to the glueing with the gaps 10 up to 15 mm. For glueing without gaps, it is however necessary to calculate with the increase of appr. 10% at the consumption of facing elements.

5. Glueing of multidimension facings /Kombi, Kombi plus/.

a/ The glueing of facing KOMBI is realized with butt joints and the own jointing is therefore not necessary. The contingently arisen facets should be only coloured with brush. The facing elements have to be placed at their setting very precisely and closely in order to prevent from undesirable glue pressing out. Basic rule for composition of individual dimensions to interrupt the arisen joint after max. 60 cm of its length has to be kept. The facing is bound in the simple way with the utilization of dimensions which are proper for the size of just faced area. So e.g. under the windows or similar openings, we prefer to use the smaller dimensions than a large one with cut out. On the contrary for larger areas, it is preferable to use also larger dimensions. All dimensions for the surface area of 1 m² are packed in one cardboard. We direct the cut out to the minimum striking places and it is better to make the cut out from the middle than to lose visually the facet.
b/ The facing KOMBI plus is glued with the gaps of width 10 mm. The using of this gap width means the reaching of “decimal dimensions”. The own glueing is realizing in the same way like at standard facing KOMBI.

6. Cut out - cutting of facings.

All facings IMIT can be shortened
and cut. The best way of cutting is made possible on circular saw bench with the use of diamond-charged or black grinding wheel for cutting of concrete and stone. At the small quantity of facing, it is possible to use also the portable flexible drive grinding machines for cutting.
The cutting by grinding wheel under water is prohibited!!!

7. Jointing of facings IMIT®

a/ The jointing is always enough demanding as well as problematic matter and it is often rather depreciated. It is necessary to realize, that the jointing has beside of visual impression also other practic purposes. The correctly jointed facing is colourfast, very plastic as well as ensured against the penetration of water and it prevents also from settling of impurities in the depressions. The facing realized in this way is the firmness of future and that is why our firm decided to change the method of jointing directly with glue for standard jointing method of EC – countries with the use of special jointing material IMIT BUNT® developed specially for our firm and our use with minimum quantity of water. This jointing material don’t need to be spread in higher layers and it is characterized by high adhesivity to the base, elasticity and colourfastness. After dilution by minimum water quantity, it is pressed like “sand” in the gaps and smoothed out with small jointing spatula of thin sheet leant against the facing. Dry method of jointing is advantageous, because it doesn’t cause the pollution of facing and the joint can be cleaned after finished jointing only with brush.
b/ The facings can be jointed also directly by the glue pressed out at the setting of facing elements into the glue mixture spread by notched spatula. This method is conditioned by correct consistency of the glue which has to be neither dry nor too “live”. According to our experience, it is purposeful to realize the spreading of glue and following jointing bit by bit always on the area of max 1 m2. The jointing is realizing with the use of small flat brush, the size of which is by approx. 1 up to 2 mm smaller than the width of gap. At light press on this brush, we use it also for coating of lateral sides or edges on facing elements. This brush should be always in the gap nearly dry!!! This kind of jointing is realizing only with the use of flexibile glueing materials.
NOTICE: It is always necessary to care at the mixing of glue about the same ratio between glue and water to ensure the uniform colour of rising gap. Our firm however doesn’t afford the warranty for this kind of jointing.

8. Water repellency - impregnation.

The facings should be according to our experience sprayed or painted by water repellent means closing also the capillaries of facing and extending markantly its service life. It means the prevention from infiltration of impurities flowing down the wall into the capillaries of facing, the washability of which is then better. Vapour permeability of facings is at use of water repellent means recommended by our firm not affected. The mentioned means don’t change the facing colour!!!

9. Notice.

a/ All recommendations and method are based on our best experience. For the buildings with specific requirements, we recommend the consultation of use method. On these assumptions, we warrant for the correctness of these data in the framework of our general conditions.
b/ Protect the facing from the rain at the realization of facing or closely after its finishing. Intense rain at the glueing with gaps can cause the rinsing of fresh glue and thus the pollution of facing. We recommend therefore to cover the facings after finishing of work by some plastic or other canvas.
c/ PAY ATTENTION at the glueing to outside temperatures, which are always specified by the producers of individual glues. Pay attention to minimum as well as to maximum outside temperatures.

10. In Explanation.

a/ We draw our attention to the fact, that IMIT® products are manufactured by manual work and the tolerances of their dimensions are therefore larger.
b/ We draw your attention to the troughout colouring of IMIT® products are manufactured of very hard concrete produced at the ratio 1 : 2. This fact causes thus also higher brittleness of products, especially of the thin ones like e.g. Bruch or Lícovka. The incorrect transport, manipulation or even attachment can therefore cause the damaging of facings. The contingently broken facing elements can be utilized for cuts out.
c/ We draw your attention to the fact, that IMIT® products are manufactured of very hard concrete produced at the ratio 1 : 2. This fact causes thus also higher brittleness of products, especially of the thin ones like e.g. Bruch or Licovka. The incorrect transport, manipulation or even attachment can therefore cause the damaging of facings. The contingently broken facing elements can be utilized for cuts out.
d/ We draw your attention to the fact, that IMIT® products are supplied always in the quantity presenting 1 m2 of faced area at the gaps 10 up to 15 mm with the exception of facing KOMBI.