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Thixotropic tile adhesive




(Measurement conditions 23°C and 50% R.H.)

Form - Color

Cementitious powder - White

Toxic/Flammable (per ΕΝ 88/379)


Bulk density of dry mortar


Vertical slip per ΕΝ 1308


Water requirement

6.5lt water per 25kg powder

Application temperature

From +5°C to +35°C

Application thickness

Up to 10mm

Temperature resistance

From -35°C to +90°C

Pot life

5 hours

Open time per ΕΝ 1346

30 minutes

Time for minor adjustments

30 minutes


After 3-6 hours on wall; after
24 hours on floor

Foot traffic

After 24 hours

Delivery to use

10-14 days


Strength after 28 days, per ΕΝ 196-1, in:

• Flexion

5.00±0.70 N/mm²

• Compression

17.00±1.00 N/mm²

Adhesion strength, per ΕΝ 1348, after:

• 28 days

1.25 N/mm²

• Thermal ageing at +70 °C

1.10 N/mm²

• Water immersion for 21 days

1.00 N/mm²

• 25 freeze - thaw cycles

0.95 N/mm²

The experimental measurements were performed per EN 12004, in the Chemical Laboratory of DUROSTICK and were confirmed by the measurements of initial type from MIRTEC (Cert. no: 3352) The following instrumentation was used:
• Flexion-compression: CONTROLS MCCC66 • Detachment: BRAIVE DYNATEST

• NOTE: The product exceeds on average the statutory requirements for C1 adhesive by 95%.


White cementitious adhesive for ceramic tiles, with extended open time, high mechanical strengths and zero vertical slip. Apply it on walls and floors, in thicknesses of up to 10mm. Classified C1TE per EN 12004.
(MIRTEC/Cert. No. 3352).


The thixotropic tile adhesive EXPERT, is suitable for installing single and double-fired tiles of all types (small sizes for outdoor applications, and all sizes for indoor ones), on walls made of plaster or cement screed. Its high thixotropy allows for tile installation on walls, even from top down, without slipping. Adding DUROSTICK ACRYLIC EMULSION in the the mixing water, at a ratio of 1:1, further enhances its characteristics so as to meet the requirements of C2TE class (improved cementitious adhesive) per EN 12004 and S1 class (deformable adhesive), per EN 12002.


1. Surface preparation

The application surface have to be sound, clean, free of loose materials, dust, paint, grease and oil.  The surface have to be soaked before the application. It is necessary to prime all absorbent substrates and aircrete, using DUROSTICK  ACRYLIC EMULSION or D-20, at a mixing ratio of 1:1 with water.
It is necessary to prime all drywall using the DUROSTICK micromolar stabilizer, AQUAFIX or SOLVENT BASED PRIMER. Lightweight or else, unstable cement screeds, must necessarily be primed with DUROSTICK ACRYLIC EMULSION or D-20 at a ratio of 1 part additive to 2 parts water or 1 part DUROMAX to 5 parts water.
Follow all balconies, terraces applications by coating the substrate with HYDROSTOP FLOOR, at 2-3 successive, crosswise layers to ensure the waterproofing of the substrate.


2. Application

Empty the adhesive into a clean container with cool water at a ratio of 2 parts water to 5 parts powder (6.5-7lt water to 25kg powder) and mix with a low speed, electric mixer until a lump free, homogenous mass is created.
Allow the mixture to mature for 5-10 minutes. During use mix periodically, without adding extra water.
Apply the adhesive using a notched trowel, and spread on the substrate.
Then, coat as much surface as is required to work for the next 15-30 minutes (depending on weather conditions), thus avoiding skin formation. Finally, install the tiles in the selected position by tapping softly with a rubber mallet.



On outdoor surfaces, it is highly recommended to create expansion joints every 16-20m². Prime the expansion joints with PRIMER-PU, to improve grip, and seal them with the polyurethane sealant, DUROFLEX-PU. Similarly, seal all the joints (5-8mm) at the junction of the tiles and vertical surfaces throughout the perimeter. Alternatively the application of DS-POLYMER, in 32 shades (same with the grout colors of DUROSTICK), ensures sealing without cracking at the junction of the tiles with the skirting and above it as well.


3-5kg/m², depending on the size of the notch of the trowel, the smoothness of the substrate and the dimensions of the tiles.


Clean all tools with water, immediately after use.



Store in tightly closed packages, in dry and shaded places for a minimum of 12 months after production date.



The product contains Portland cement. Before using, refer to the cautions on the product’s package or the Material Safety Data Sheet.



Paper bag of 25kg on 1,500kg pallet