Silicone Hydrophobic Powder is a high-performance, redispersible silane/siloxane-based additive in powder form, specifically engineered to provide superior water-repellency and protection for cementitious and mineral-based building materials. It is produced through advanced spray-drying technology, encapsulating active silicone ingredients within a protective carrier to ensure stability and uniform dispersion.

In applications such as waterproof mortars, decorative grouts, external wall plasters, and self-leveling compounds, Silicone Hydrophobic Powder acts by lining the internal capillary pores of the material with a hydrophobic layer. Unlike surface coatings, this additive provides an integral water-repellent effect throughout the entire mass of the mortar. It significantly reduces the capillary water absorption rate and the “wicking” effect, preventing moisture from penetrating the structure while maintaining the material’s vapor permeability (allowing the building to “breathe”).

By effectively repelling water, it prevents common moisture-related issues such as efflorescence (salt staining), freeze-thaw damage, and mold growth. This results in a more durable, cleaner, and aesthetically stable finish for exterior and interior surfaces.

Key Performance Attributes:

• Integral Hydrophobicity: Provides deep, long-lasting water resistance throughout the entire cross-section of the mortar.

• Beading Effect: Creates a noticeable water-beading (lotus leaf) effect on the surface, keeping it dry and clean.

• Breathability: Maintains high water vapor transmission, preventing internal moisture buildup and peeling.

• Efflorescence Control: Drastically reduces the migration of salts to the surface, maintaining the visual integrity of colored grouts and plasters.

• Low Impact on Mechanics: Designed to provide water repellency without significantly compromising the bonding strength or compressive strength of the system.