LARGE SIZE LAYING

DSG Ceramics in an Italian large porcelain slabs manufacturer. The large porcelain slabs manufactured by DSG Ceramics (120x120 cm) are more than simple coverings, they are able to furnish for themselves and fit harmoniously into internal and external spaces, thanks to the multiple collections and the easiness of installation.

The large porcelain slabs series, characterized by superior technical and aesthetic prerogatives, are manufactured  in porcelain gres full body multilayer with a technology defined "CONTINUE".

The production line was projected expressly to produce big formats and this CONTINUE technology provides, before pressing, a pre-compaction phase of the multilayer mass, to obtain special decorative effects without using any glaze, but using colored and quality porcelain mixtures.

The thicknesses of the produced tiles are 12 mm or 4.8 mm. This DSG research methodology permits to realize large porcelain slabs, perfectly grinded, monocaliber and modular.

Contact immediately the Italian large porcelain slabs manufacturer DSG Ceramics. We will be at your disposal to show you all the range of our Made in Italy products and make you a quotation without any obligation. 

The substrate

The floor substrate must be resistant enough to bear the expected stress and weight added with the ceramic tiles, it must be perfectly planar, perfectly aged and dry, and free of any lose part such as oil, water, dust, paint, grease etc., which might compromise the adhesion of the slabs.

Reinforced concrete substrate The substrate must be aged, cured, clean, dry and free of any substance which might compromise the adhesion of the ceramic. Any crack due to hygrometric shrinkage must be sealed using a twocomponent epoxy fluid adhesive (ie. EPORIP by Mapei or similar). If the concrete support is dirty or has surface dust it must be thoroughly cleaned and the a suitable single-component resin primer with a very low content of colatile organic compounds (VOC) must be applied (ie. PRIMER G or ECO PRIM T by Mapei spa or similar). If the concrete surface has any surface inconsistencies it must be consolidated with a suitable single-component or two-component epoxy or polyurethane primer (such as PRIMER MF or ECOPRIM PU 1K by Mapei spa or similar).

Screed coats

The screed surface must be aged, cured, clean, dry and free of any substance which might compromise the adhesion of the ceramic. Any crack due to hygrometric shrinkage must be sealed using a twocomponent epoxy fluid adhesive (ie. EPORIP by Mapei or similar). Once the surface is completely cured it is important to check that it is strong enough to bear the weight of the ceramic that will be fixed on it. If the concrete support is dirty or has surface dust it must be thoroughly cleaned and the a suitable single-component resin primer with a very low content of colatile organic compounds (VOC) must be applied (ie. PRIMER G or ECO PRIM T by Mapei spa or similar).

If the concrete surface has any surface inconsistencies it must be consolidated with a suitable single-component or two-component epoxy or polyurethane primer (such as PRIMER MF or ECOPRIM PU 1K by Mapei spa or similar). For floor heating installations the correct switch on cycle of the system must be performed in compliance with the applicable standards and the indications of the manufacturer of the floor heating system.

Existing ceramics or stone floorings

For ceramic and stone floorings, check that the existing covering is perfectly attached to the support, planar and free of any cracks or sections that tend to detach from the substrate. If not proceed as follows:

  • seal the floor cracks with two-component fluid epoxy resins (such as EPORIP by Mapei spa or similar);
  • fill any gaps created when removing any tiles or slabs that do not adhere, using rapid setting thixotropic smoothing compounds (such as ADESILEX P4 or NIVORAPID by Mapei spa or similar);
  • correct any planarity imperfections with levelling mortars, after cleaning the existing surface and, if necessary, using a suitable primer (such as ECO PRIM T by Mapei spa or similar ).

Generally speaking existing ceramic or stone floorings must be suitably cleaned with a solution of warm water and caustic soda at 20%, and rinsed thoroughly to remove any trace of loose substances. In specific cases the surface can be subjected to some surface abrasion to achieve a rough and clean support, in order to improve the subsequent adhesion.

Tiling

Before laying DSG slabs select the most suitable adhesive according to the type of support, the final environment, the weather conditions of the site and the time available between laying and use.

The table below lists a few examples of adhesive systems suitable for laying our slabs on horizontal indoor surfaces.

Suggested adhesives

Ardex X 78 (C2 S1)

Ardex X 78 S (C2 S2)

Mapei Kerabond + Isolastic (C2 S2)

Mapei Elastorapid (C2FTE S2)

Mapei Keraflex Maxi S1 (C2TE S1)

Mapei Keraquick + Latex Plus (C2FT S2)

Mapei Ultralite S1 (C2TE S1)

Mapei Granirapid (C2F S1)

Mapei Ultralite S2 (C2E S2)

Mapei Ultralite S1 Quick (C2FT S1)

Mapei Ultralite S2 Quick (C2FE S2)

For a perfect laying and a complete wetting we suggest to apply the adhesive with double spreading, applying the glue both on the substrate and on the back of the tile. We suggest to use this procedure especially for 4.8mm slabs. Apply the adhesive with an adequately sized notched trowel, firstly laying one thin layer on the support with the flat edge of the trowel and then applying the desired thickness with the notched edge. Then apply the adhesive on the substrate with a notched trowel and lay the tile. Beat the tile with a rubber hammer to ensure perfect wetting and remove any air bubble which might have generated between the tile and the substrate. It is possible to use systems such as Tuscan Leveling or similar to help maintaining the perfect planarity of the floor.

Grouting

We suggest to use 2mm joints in case of multi-format flooring and 2-4 mm in case of single-format. Please read carefully our technical specifications charts and apply the necessary dilatation joints. The joints must be grouted only after the adhesive has hardened, normally 3 hours for fast set adhesives and at least 24 hours for regular set adhesives. These values refer to laying carried out at +23°C and 50 % relative humidity.