MARKS ON THE PACKAGING – PRODUCT IDENTIFICATION

The packaging with ceramic tiles contains, among other things, the specification of the type of tiles and their intended use, the list of basic physical properties of tiles, including the declared values of the respective parameters. Additionally, the information necessary for product identification is provided on the packaging, i.e.:

  • name of the tile,
  • nominal dimension,
  • working dimension,
  • brand,
  • calibre,
  • tone,
  • sorter No.,
  • date and hour of production,
  • abrasion resistance grade (refers only to the glazed floor tiles)
  • number of m2, pieces in the packaging.

NOTE: it is necessary to mount the tiles only in one tint/tone and in the same calibre!

Tile calibre – the range of dimensional tolerance, the difference between the permissible limit dimensions of a tile. The tolerance range specifies the dimensional groups, the so called calibres. The specification of the calibre and the dimensional tolerances can be found on labels placed on the packaging for tiles. The wall tiles without dimensional groups – calibres, have their working dimension and dimensional tolerance specified by PN-EN 14411.

Tint/tone – the difference in the colour intensity of the respective pattern prints on a tile, giving a change in colouring of the whole tile pattern in relation to the accepted pattern. In accordance with PN_EN 14411: ”In the burning process, the occurrence of slight differences in colour in comparison with the model is unavoidable”. The pattern is specified on the label on the tile packaging as ”tone: 50”, the tint darker than the pattern is expressed as “tone: 52”, and the tint lighter than the pattern as ”tone: 48”.

NOTE: The universal wall, floor and universal tiles as well as decorations marked with one tint/tone, placed in one packaging, may contain slight differences in the graphics of the design and in colour, resulting from the production in the rotocolor technology. In connection with the fact that the print is applied to the tile by means of silicone in a rotational way, the tiles in one packaging have a different ”reprint”, which does not worsen the appearance of the surface laid out with them.

Rectified tiles – tiles subjected to mechanical processing, consisting in their accurate cutting to specific dimensions, with the accuracy up to +/- 0.3 mm. In case of the rectified tiles, the ”visually jointless” laying is possible. In view of the water expansion of the ceramic tiles, it is recommended to lay the tiles on the joint, which should amount to min. 1 mm in the case of the rectified tiles.

Lappato tiles – stoneware ceramic tiles with a surface polished in order to obtain the gloss in such a way that the peaks of uneven surface are polished until the accomplishment of gloss, and the grooves remain dull. Undoubtedly the lappato tiles are characterized by aesthetic qualities. However, due to their useful qualities, they should not be used at places with great traffic volume, susceptible to dirt.

RULES FOR LAYING TILES

Transport – the tiles must be transported with the use of the means of transport, placing the loading units tightly next to each other, in one layer, in order to prevent the movement of the load during the transport. The packs should be placed in such a way as to have the tiles laid in them assume a vertical position, which will prevent the occurrence of cracks during the transport. Decorative elements, in particular those with cut out patterns (notches, holes, inserts) should be protected from pressure. It is necessary to pay particular attention during the loading and unloading of the rectified tiles, due to the delicate edges.

Storage – the tiles must be stored in premises, which will protect them against humidity. Additionally, the tiles, which do not have the declared freeze-resistance must be stored in positive temperatures.

Checking the correctness of delivery – it is necessary to specify precisely all the identification data of the product in the order: the name of the tile, the format, the grade, and possibly the tint, the calibre or the date of tile manufacturing (which is particularly important when the missing number of previously purchased tiles is ordered). After receipt of the delivery, it is necessary to check the whole purchased batch in order to exclude the possible defects resulting at the time of giving out the goods.

The checking of labels on all the packaging is aimed at verification, whether the same product, in the same brand, tone, calibration and with the same manufacturing date was received.
Then, it is necessary to take out and spread the tiles from different packaging on a flat surface and evaluate their quality, dimensions and tints. Grade I is defined by PN-EN 14411.

With regard to the tile surface quality minimum 95% of tiles should not have visible defects causing the worsening of the appearance of the surface laid out with tiles.
Any doubts as to the surface quality of the tiles should be reported before the tiles are laid.

The packaging contains the following information:
”NOTE: Before laying the tiles, compare their quality, dimensions and tints from different packaging and check the compliance of the calibres, tones, brands and manufacturing dates included on the label for the whole purchased batch. During the gluing process, do not exceed the maximum 5 mm thickness of the glue layer. It is not recommended to use the sharply contrasting joints. The defects/damage resulting from the above-mentioned neglections will not be covered by the warranty. Therefore, after laying the tiles, the complaints concerning the above-mentioned irregularities will not be taken into account.”

Laying glass decorations – Each purchased batch of glass decorations manufactured by POLCOLORIT S.A. is provided with the manual containing detailed information on laying this type of decorations. The manual in the PDF format is available in files for download (after pressing, go to section FILES FOR DOWLOAD). The laying of glass decorative items should be performed with the use of white flexible glue mortars intended for glass mosaic, according to the instructions of the manufacturer ,or with the use of glues for mirrors. Before laying the items, perform a test on a small surface. The point-gluing of glass decorations is not allowed. No air should be present between the glued item and the ground. According to the instructions of the manufacturer, the fine-grained joints intended for glass mosaic should be used for pointing. Only the agents intended for glass can be applied for maintenance

NOTE – The laying of glass decorations in a manner which is not compliant with the instructions included in the “manual” (e.g. with glues for tiles which are not intended for application to glass elements) may cause the occurrence of stains. The complaints related to this will not be regarded as justified.
lappato tile pointing - ”pointing of lappato tiles, containing micropores must be performed along the joints, without finishing the tile surface with mortar. The possible excess of mortar must be collected from the surface of the tile when the mortar is still unhardened. After the initial pointing mortar setting (usually after 10-20 minutes) remove the residues from the edges of the tiles by means of the wet hard sponge, obliquely in relation to the direction of joints, using two containers with water: one for removal of excess of mortar from the sponge and the other for accurate rinsing of the sponge. The accurate cleaning of the edges of the tile must be performed after the time recommended by the manufacturer of the joint (usually after 2 hours). Cleaning the joint too late, after hardening of the joint in the pores of the tiles may be difficult, and the claims related to this will not be regarded as justified. The possible residues of pointing mortar must be removed with the commercially available preparation for removal of cement dirt. The preparation must be spread over the dirty surface, left for a couple of minutes and removed with the use of water.”

Pointing of the mosaic containing decorative items (mirrors, granilie) must be performed in accordance with the manual described above.
 

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