Technical datasheet

RUCOSIL® B-LS

Supplied byRudolf Group- Last Updated on Aug 4, 2025

RUCOSIL® B-LS by Rudolf Group is a hydrophobizing additive for water and solvent based masonry coatings with a strong beading effect. It is solvent-free functional polysiloxane with high early water resistance. It offers excellent water repellency and does not influence permeability to water vapor. RUCOSIL® B-LS is recommended dosage level is 0.5-1.5% for silicone resin paint/plaster, 1-3% for acrylic paint/plaster and 1-3% for silicate paint/plaster.
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Waterborne Coatings

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RUCOSIL® B-LS properties

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