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Characterization: Polymeric open time extender 

Chemical Structure: Hydroxyfunctional blockcopolymer in water

Appearance: Yellowish, clear liquid

pH-Value: 8.0 + - 1

Non volatile matter: 50 % + - 1

Ionic Character: Non ionic

Stabilities: The product can be sensitive to frost.

Storage: The product is stable for at least 18 months at well-ventilated areas. Avoid temperatures below 4°C and above 40°C. Prevent from freezing. Stir before use.



▪ Highly effective

▪ High compatibility with various binder-systems

▪ Extends the open time

▪ Particularly suitable for high-gloss formulations

▪ VOC-free acc. to EU 2004/42/EG

▪ Free from mineral oils and APEO


Application Fields

SILCO AC 9200 is characterised as an additive to extend the open time of water based paints and coatings. In addition, the product improves the film gloss and pigment dispersion.


Preferred fields of application: 

▪ Architectural paints

▪ Water based paints & coatings


Recommendation for Use

We generally recommend a dosage of 0.5 – 5.0 % calculated on the total formulation. The optimal dosage has to be determined through preliminary tests.


The product can be added at any point of the production process.


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