About Rudolf Group

Rudolf Group, established in 1922 and headquartered in West Java, Indonesia, operates in the textile, construction, and industrial coatings sectors. With over a century of expertise, the company develops advanced chemical solutions to meet evolving global market needs. Rudolf Group specializes in coatings technology that enhances functionalities such as hydrophobic, dirt repellence, and self-cleaning properties for both industrial applications and consumer products. Its portfolio includes crosslinking agents, flame retardants, fluoropolymers, polyurethanes, water repellents, rheology modifiers, wetting agents, vinyls, waxes, and defoamers, offering solutions that improve durability, aesthetics, and sustainability by reducing maintenance needs and extending product lifespan.

RUCOSIL® B-LS

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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RUCOSIL® B-MK

RUCOSIL® B-MK by Rudolf Group is a silicone-free defoamer. It is highly effective, well dispersible blend of liquid hydrocarbons, hydrophobic silica and emulsifiers. It is used in water-based coatings including masonry paints, plaster, industrial- and wood coatings and printing inks.

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RUCOSIL® B-AC

RUCOSIL® B-AC by Rudolf Group is a silicone-free, biodegradable defoamer. It is self-emulsifying in cold water and prepared from vegetable oil, fatty acid ethoxylates and silica. It shows strong defoaming effect, acid-resistance up to pH 2 and alkali resistance up to pH 14. It is suitable for masonry paints and plaster, water-based industrial and wood coatings and printing inks.