Hydrophobic Precipitated Silica ALOS-PS-011

Hydrophobic precipitated silica ALOS-PS-011 is a chemically modified inorganic material produced by post-treating precipitated silica to replace surface silanol groups with organosilane moieties. It exhibits outstanding water repellency, excellent dispersibility in organic systems, and superior rheological control, making it an indispensable functional additive in a wide range of industries, including coatings, plastics, rubber, and specialty chemicals, where it contributes to improved processing efficiency, durability, and end-use properties.

Typical Parameters

• Product Name: Hydrophobic Precipitated Silica ALOS-PS-011
• Catalog: ALOS-PS-011
• Appearance: White powder
• Silica Content: ≥96%
• Drying Loss: 4-8%
• Ignition Loss: ≤7%
• pH Value (10% aqueous suspension): 6.0-8.0
• Iron Ion Content: ≤500 ppm
• DBP Absorption Value: 2.3-2.6 cm³/g
• BET Specific Surface Area: 170-200 m²/g

Applications

Hydrophobic precipitated silica ALOS-PS-011 is a high-performance functional additive that combines the cost-effectiveness of precipitated silica with the performance advantages of hydrophobic functionality, and is widely used in coatings, plastics, rubber, and specialty chemicals.

• Coatings: In coating formulations, this product is used as a rheology modifier and anti-settling agent. It improves thixotropy, prevents pigment sedimentation, enhances sag resistance, and ensures uniform dispersion, leading to better storage stability and smoother application performance.
• Plastics: In plastic formulations, ALOS-PS-011 enhances filler dispersion and improves compatibility with polymer matrices. It contributes to better mechanical properties, reduced moisture sensitivity, and improved processing stability.
• Rubber: For rubber compounds, this product acts as a reinforcing and processing aid. It improves filler distribution, enhances tear strength and abrasion resistance, and supports consistent performance in both natural and synthetic rubber systems.
• Specialty chemicals: In adhesives, sealants, inks, and other specialty chemical formulations, ALOS-PS-011 provides effective viscosity control, improves stability, and enhances the overall performance and reliability of complex systems.

Packaging

Standard packaging is 5 kg heavy-duty polyethylene (HDPE) bags. In addition, we provide customized packaging options to accommodate specific customer requirements, including alternative bag sizes and special labeling.

Note

During storage, transportation, and use, it should be strictly protected from humidity to prevent caking and performance degradation.

Storage

Store the product in a tightly sealed container in a cool, dry, and well-ventilated area. Keep it away from direct sunlight, heat sources, and any potential contaminants to maintain product quality.