Product overview
Hydrophobic Fumed Silica is a rheology & anti-settling additives material evaluated for Rheology and thixotropy in solvent-borne coatings, Anti-settling and anti-sag control, Adhesives, sealants and composites. Grade selection should compare composition, physical properties, compatibility, regulatory documentation and finished-paint performance.
Function & Usage
- Repel Water & Hydrophobize Surfaces
Reduces water uptake or increases surface hydrophobicity in suitable mineral, masonry, concrete or coating systems. Typical uses: Rheology and thixotropy in solvent-borne coatings, Anti-settling and anti-sag control, Adhesives, sealants and composites.
- Control Rheology & Water Retention
Controls viscosity, suspension, sag resistance or water retention in suitable coating and construction formulations. Typical uses: Rheology and thixotropy in solvent-borne coatings, Anti-settling and anti-sag control, Adhesives, sealants and composites.
- Control Paint Rheology, Sag & Settling
Controls viscosity profile, application flow, suspension, anti-settling or anti-sag behavior in a compatible coating system. Typical uses: Rheology and thixotropy in solvent-borne coatings, Anti-settling and anti-sag control, Adhesives, sealants and composites.
Product information
- Primary category:
- Paints, Coatings, Adhesives & Construction, Plastic & Rubber Additives
- Subcategory:
- Rheology & Anti-Settling Additives
- CAS No.:
- 68611-44-9
- Form:
- Very light white powder
- Content / Grade:
- Surface-treated fumed silica; BET surface area typically 90-300 m²/g; moisture and carbon content by grade
- Applications:
- Rheology and thixotropy in solvent-borne coatings, Anti-settling and anti-sag control, Adhesives, sealants and composites, Moisture-resistant powder and resin systems
- Hazard / Transport:
- Very fine dust may cause mechanical respiratory irritation and can become airborne easily. Avoid dust generation and static accumulation; confirm surface-treatment chemistry and the current SDS.
- Storage:
- Keep tightly sealed in a cool, dry and ventilated warehouse. Protect from moisture, contamination and direct weather exposure; avoid dust accumulation and use first-in, first-out inventory control.