ROHAGIT A 220 D is an ammonium salt of an acrylic polymer and is one of a range of highly efficient, low viscosity dispersing additives especially suited for dispersion of inorganic pigments in water-borne systems.

Available Documents

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Technical Informations

Application Advice/Typical Applications

For additional information on this product please contact our techncial service team.

ROHAGIT A 220 D is an ideal dispersing agent for a wide range of aqueous-based coatings and can be used as supplied. ROHAGIT A 220 D releases ammonia during the drying process and therefore has little impact on water and alkaline resistance of the dry film. Use in the pH range 5 -10.5 and temperatures lower than 70°C to minimise potential loss of volatile ammonia. Once formulated the acrylic polymer based ROHAGIT A 220 D imparts improved storage stability in both the pigment dispersion and the formulated paint. Formulations show little or no adverse reaction to changes in pH or temperature. The recommended level of use is 0.3 – 2.0%, based on total pigment weight

Shipping and Storage

Store at an even temperature of between +5°C and +35°C avoiding frost and direct sunlight. Stir product before use. If stored according to these conditions and in the original unopened containers, the dispersion will be stable for 6 months following delivery. Product should be used as soon as possible after opening. Detailed information is available on request.

Product Security/Health and Safety

Before handling, please read the Safety Data Sheet of this product for advice on safety, use and disposal.

Effluents and Pollution Control

Before handling, please read the Safety Data Sheet of this product for advice on safety, use and disposal.

For further information regarding this product please refer to:

Dr. Dören, Klaus
Phone: +49 (0)2365-49-5740
FAX: +49 (0)2365-49-6605


Character Value Unit
Solids Content 40.0
pH Value 8.5  
Viscosity < 100 mPa s 
Density 1.2 g/cm³ 
Appearance Straw / amber liquid  

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