Admixture for Cementitious Adhesive

Dubond's Tuffex AD is high technology elastomeric latex and it is suitable for use as an additive for cement based adhesives, with normal and fast setting adhesives. Dubond's tuffex ad increases adhesion to substrates and improves the adhension.

Green Building Rating

  • Low
  • Low Ecological ImpactEmission
  • HealthCare
  • Water Based

Areas of Application
Flooring and walls. For internal and external use, in domestic, commercial and industrial applications for street furniture. In environments subject to heavy use, swimming pools, tanks and fountains, for laying on deformable substrates, Also in areas subject to thermal shock and freezing. Materials to be bonded as homogeneous tiles, ceramic tiles, klinker, cotto, glass and ceramic mosaic, of all types and formats natural stone, agglomerate materials, marbles.

Features & Benefits
Increases substrate adhesion. Does not alter interval before normal use. Recommended as an additive for substrates and materials subject to extreme deformation. Does not alter workability times of normal and extra-fast setting mineral adhesives. It increases the longitudinal and transversal deformation of adhesives guaranteeing unaltered workability and safe, easy and eco-friendly laying

Method of Application
Substrates must be compact and consistent, free from dust, oil and grease, free from any rising damp, with no loose, flaky, or imperfectly anchored parts. The substrate must be stable, without cracks and have already completed the curing period of hygrometric shrinkage. Undulated areas must be corrected with suitable smoothing and finishing products.

Tuffex AD is used as a partial or full substitute for mixing water. After having mixed the powder with the indicated quantity of Tuffex AD. It is necessary to adjust the consistency of the mixture by adding water according to the type of application required, until a homogeneous, lump-free paste is obtained.

Adhesives mixed with Tuffex AD must be applied with a suitable, toothed smooth spreader of the type and dimensions most appropriate for the format and type of tiles used. Using the smooth part of the spreader, apply an initial fine layer to adjust absorption of the substrate with such a quantity of product as will allow for laying of the covering material within the indicated open time In environments subject to heavy foot traffic, where surfaces are to be smoothed during their creation and in outdoor locations, Use the double-spread technique to ensure 100% application of the product to the rear of the tiles. ( It does not alter workability and hardening times of the adhesive. In warm, dry or windy climates check open times, which may be reduced as a consequenceof such conditions.)

Precautions & Limitations
Do not use the adhesive to correct substrate irregularities lay and press tiles onto fresh adhesive making sure it has not formed a surface skin. Use the double-spread technique for all external laying The temperature, ventilation and absorption of the substrate and covering materials, may vary the adhesive workability and setting times. Do not use On external floors, on wet surfaces or substrates subjected to moisture rising; in environments where water is always present; with low absorption tiles on non-bsorbent substrates

Health & Saftey Precautions
Keep out of reach of children. wear suitable protective clothing, gloves, and eye / face protection. after contact with skin wash immediately with plenty of clean water. in case of contact with eyes, rinse immediately with plenty of clean water and seek medical advice...


Appearance White liquid
Specific weight 1.01 kg/dm3
Extra fast-acting mineral adhesives As a replacement for mixing water
Normal-setting mineral adhesives 2 parts Tuffex AD : 1 part water
Viscosity 33 Mpa
pH 7.06
Temperature range for application From +5 °C to +35 °C
Mixing ratio 2 parts Tuffex AD : 1 part water
Pot life ≥ 4 hrs
Open time ≥ 30 min EN 1346
Adjustability ≥ 30 min.
Foot traffic 24 hrs
Grouting in walls / flooring 8 / 24 hrs
Interval before normal use 7 days
Transversal deformation ≥ 5 mm, EN 12002
Adhesion to concrete after 28 days ≥ 2 N/mm2, EN 1348
Adhesion after water immersion ≥ 1 N/mm2, EN 1348
Adhesion after heat ageing ≥ 2 N/mm2, EN 1348
Conformity ≥ 2 N/mm2, EN 12004
Shelf Life & Storage 12 months in the original packaging : Protect from frost. when stored in normal conditions

Additional Information

Packaging Details 1 ltr & 5 ltr container

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