From Mapei research, the lightweight adhesive specifically developed for installing large format tiles in complete safety, including on external facades and external thermal insulation systems. Highly deformable and easy to apply by trowel, thanks to its special formulation developed in the Mapei Laboratories, it guarantees very high yield and excellent wetting capacity of the back of tiles, ensuring perfect adhesion for any type and format of tile.

ULTRALITE S2 - Cementitious Tile Adhesive

One-component, high-performance, highly-deformable, lightweight cementitious adhesive with extended open time, very high yield, easy to trowel and good buttering capacity, for ceramic tiles and stone, ideal for thin porcelain tiles.


  • Ideal for installing large formats
  • Excellent wetting capacity
  • Very high yield
  • Highly deformable
  • Creamy paste, good trowellability
  • Lighter bags
  • Reduces consumption and transport costs
  • Contains recycled materials (MEC)

Pot life of mix: more than 8 hours.
Open time: > 30 minutes.
Waiting time before grouting:
– on walls: 4-8 hours;
– on floors: 24 hours.
Set to light foot traffic: approx. 24 hours.
Ready for use: approx. 14 days.
Deformability according to EN 12004: S2 - highly deformable.
Colour: grey and white.
Application: n° 4, 5, 6 or 10 notched trowel.
EMICODE: EC1 R Plus - very low emission.
Storage: 12 months.
Consumption: 0.8 kg/m² per mm of thickness, equivalent to 1.5-2.5 kg/m².
Packaging: 15 kg bags.

Related documentation

Technical data sheet

Product documentation

Last Projects ULTRALITE S2 - Cementitious Tile Adhesive

ULTRALITE S2 - Cementitious Tile Adhesive is part of the lines:

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