Typical Properties:
Film Appearance: Clear and yellowish
Solid Content (30 min.-150°): 23%±1
pH (DIN ISO976): 8.0 - 10.00
Density (ISO8962): 1.06 g/cm3
Viscosity Brookfield RVDV-II (DIN EN ISO 976): Max 500 mPas
Ionic Charge: Ammonium salt of polyacrylic acid

Introduction:
Thickener A23 is a derivative of a highly effective, low-viscosity dispersing agents for water-
based coating systems, especially suitable for the dispersion of inorganic pigments.

Thickener A23 preparations are ideal dispersing agents for a wide range of water-based
coatings. They can be used as supplied. The neutralizing alkali used in conjunction with the
acrylic polymer can significantly impact the properties of the final coating.

Thickener A23 releases ammonia during the drying process and therefore has little impact
on the resistances to water and alkali of the dry film.

The use of Thickener A23 should be limited to pH 5 – 10.5 and temperatures lower than
70°C (158°F) due to potential loss of volatile ammonia. Thickener A23 is based on an organic
polymer and provides improved storage stability of both pigment dispersion and formulated
paint when compared with inorganic dispersing agents, e.g., polyphosphate.

As opposed to adding the dispersing agent to a pigment slurry, the pigment should be added
to heavily stirred water to which the dispersing agent had been added. In general, the pH of
the final preparation should be in the region of 8.5 to obtain optimum dispersing efficiency.

The optimum amount of dispersing agent required to form a stable dispersion strongly
depends on the pigment’s chemical nature, the particle surface and shape. The polymer
base of the latex also plays a very important part in the stability equation. In general,
significant overdosing may deteriorate the coating’s properties (e.g., water resistance) and
generate an economic disadvantage. Likewise, insufficient dispersing agent will lead to
instability on storage.

Application Areas:
- Paints and coatings
- Cements
- Glue and lamination
- Tile adhesives
- Sealants
- Flooring adhesives
- Construction adhesives

Product handling – storage - shelflife:
To ensure safe storage of this emulsion, containers and drums should be well sealed to
prevent the water evaporation and skin forming. The emulsion must be stored between
5-35°C for a maximum of 12 months and freezing-direct sunlight must be avoided.

If you are interested in it, please feel free to contact us at tdpctw@gmail.com.