GX Universal Thick-Layer Leveling Compound

Key Facts

Ceresit GX

Universal Thick-Layer leveling Compound

For 10 - 60 mm layer thickness in one single applicationProperties



  • High ultimate resistance
  • Fast setting
  • Shrinkage-free
  • Especially suited for very uneven substrates


Ceresit GX is a mortar with self-leveling properties and shrinkage-free. Composed of hydraulic cement, selected silica sand and special additives, additives that, when mixed with water, forms a self-leveling and smooth mass ideal for achieving smooth and leveled surfaces on concrete floors.

Ceresit GX is recommended for use on mortars, concrete, tile and slabs, natural stone and terrazzo floors, firmly adhered old substrates and old substrates with firmly stuck adhesive residues.

If further shrinkage resistance is required, Ceresit GX can be crowned with Ceresit DX or Ceresit DX XPRESS without the use of a primer (see data sheet).

The leveling compound was designed exclusively for use in dry interior areas. Do not use it for traffic surfaces exposed to wear.


Paper bag, 25 kg

Shrinkage resistance

1 day: 100 Kg/cm2

28 days: 200 Kg/cm2


1.8 Kg/m2 at 1 mm thickness

Mixing ratio

4 L / 25 Kg Bag

Mixing volume

14 L

Working time

Aprox. 45 min

Setting time

Initial: 2 - 3 hours

Final: 3 - 4 hours


5 - 6 hours @ 5 mm thickness

Drying time for finish placement

Up to 20 mm: 1 -2 days

From 20 - 40 mm: 2 - 3 days

From 40 - 60 mm: 3 - 4 days

Shelf life

9 months

Step by Step

Substrate preparation

The substrates must be clean, crack-free, sound, dry, and free of substances that may impair adhesion and must comply with the current relevant local standards. 

Before applying the leveling compound, pretreat the surface with the recommended primers Ceresit R 777 or Ceresit R 766. For further information, see the technical datasheet.

Proceed to take the levels and place references (“masters”) using Ceresit RS 88. The “masters” are placed at a rate of one for every 3 sq m (10.76 sq ft) approximately.


For a 25 Kg (55.12 lb.) bag, measure and pour 4 liters (1.06 gal) of water in a container. By stirring up, slowly add a Ceresit GX bag. It is necessary to use a mixer or a drill with 650 rpm-speed fitted with appropriate blades or disks. 

Mix for 2 minutes, stop the mixing, scrape the walls and the bottom of the mixing vessel and mix for 2 more minutes until you get a smooth mixture free of lumps.

Pour the self-leveling mixture by sections and uniform parts immediately in a given area depending on the expected performance and in accordance with the calculated thickness.


Apply the leveling compound with a toothed squeegee or smoothing trowel to achieve a uniform thickness. Pass a spikes roller repeatedly in both directions. Let it dry for about 5 to 6 hours for foot traffic, and 24 hours to apply the desired finish. 

Note. While passing the spikes roller, it is necessary that the task will be done in maximum 20 minutes after the application of Ceresit GX because the product starts setting and loses its leveling properties.