Additive for coatings formulations

Addition levels from 0.5 to 2% of BLUESIL BP 9920 compared to the total formulation are typically used.

BLUESIL BP 9920 can also be thinned with water, between 1 to 5% of solids, for a use as water repellent primer. In such formulations, we recommend to add acrylic emulsions.

Our technical department has made a number of tests which can serve as a basis for formulations.

For each new formulation, compatibility between constituents should be checked.

​When stored in its original unopened packaging at a temperature between +2°C and +30°C, BLUESIL BP 9920 may be stored for up to 12 months from its date of manufacture.

Comply with the storage instructions and expiry date marked on the packaging.

Beyond this date, Bluestar Silicones no longer guarantees that the product meets the sales specifications

Avoid discharge into drains, water courses or onto the ground. Store in a cool, dry place with adequate ventilation. Keep away from incompatible materials, open flames, and high temperatures. Avoid contact with oxidizing agents. Suitable containers: Steel drums coated with epoxy-resin.Please consult the Safety Data Sheet of this product.


BLUESIL BP 9920 is a non-ionic, APEO free, polyorganosiloxane aqueous emulsion, to be used as a water repellent additive in various formulations for building materials.

Additive;Coating;Water Repellency



​BLUESIL BP 9920 provides long lasting protection thanks to good water resistance, good water vapour permeability and beading effect at a low dosage.

In coatings, BLUESIL BP 9920 enhances the water repellency of the films, improves the processability and the antiblocking characteristics.

Thanks to its efficiency at low dosage, the use of BLUESIL BP 9920 typically results in low dirt pick-up tendency.

BLUESIL BP 9920 is an Eco friendly additive, easy to handle and process.

BLUESIL BP 9920 is an additive specially designed to enhance water repellency of interior and exterior paints, mineral paints, plasters …

Asia Pacific;Central and South America;Europe Middle East Africa;North America

For information about Storage and Shelf Life for this product, please download the Technical Data Sheet.




Dry content40Monocomp%
pH7MonocompISO 976























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BLUESIL BP 9920 BP 9920










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