From Realtà Mapei International n° 71 - 11/12/2018

Keraquick Maxi S1

The rapid, high-performance adhesive.

Rapid-setting, extended workability, ideal for thick formats: these are the main features of KERAQUICK MAXI S1, the new white and grey cementitious adhesive classified as C2FT S1 according to EN 12004 standard. It is a high-performance, rapid-setting and hydrating, deformable, non-slip product, suitable for installing ceramic tiles and particularly recommended for natural and engineered stone, including thick, large formats.



  • The mortar obtained when KERAQUICK MAXI S1 is mixed with water has an extended open time: the mix remains workable for 45 minutes. This allows enough time to mix a whole bag of product in one go, speeding up application times.
  • The low viscosity of the mix allows a quick and safe application.
  • It is suitable for application in layers up to 15 mm thick without letting even large, thick floor tiles sink into the adhesive, including when applied in thick layers to compensate for uneven areas in the installation bed. It may be applied on vertical surfaces without slumping and without allowing tiles to slip, even large, heavy tiles.
  • It allows to obtain excellent wetting of the back of the tiles.
  • It allows to use floors and walls very quickly. Floors are ready for use in 24 hours and can be walked on after only 3 hours.
  • The white-colored version of the product has very high white balance.



  • It contains 5% of recycled material.
  • It does not give off substances that are harmful for human health and is certified as EMICODE EC1 R PLUS (very low emission of VOC - Volatile Organic Compounds) by the German association GEV (Gemeinschaft Emissionskontrollierte Verlegewerkstoffe, Klebstoffe und Bauprodukte e.V.).
  • The environmental impact during its entire life cycle has been measured using the LCA (Life Cycle Assessment) method and the results are reported in the EPD International.


These characteristics make KERAQUICK MAXI S1 ideal to be used in commercial, industrial and civil environments. Indeed, it can be used for repairs in heavily trafficked areas and when surfaces need to be put into service rapidly, such as in public premises, restaurants, motorway services, pedestrian passages, supermarkets, showrooms, as well as in swimming pools, industrial plants, bathrooms, showers, kitchens, balconies, and terraces.

It is also perfectly suitable for bonding on walls, including façades, where the use of a class S1 adhesive is specified/required. Thanks to its features, it is especially suitable for bonding natural and engineered stone materials including the light-colored ones. 


Elisa Leoni, Francesco Stronati. Mapei SpA Technical Services


Products mentioned in the article

High-performance, deformable, rapid-setting and hydrating, non-slip cementitious adhesive with very low emission of volatile organic...
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