Hydrophilic Fumed Silica has excellent dispersibility in water-based systems. It can easily be incorporated into water-based
adhesives and sealants without the need for additional dispersing agents. This makes it a cost-effective and efficient additive
for formulators.
Applications of hydrophilic Fumed Silica
1. Coatings and paints: Hydrophilic fumed silica is used in coatings and paints to improve their rheological properties. It acts
as a thickening and anti-settling agent, preventing the settling of pigments and fillers. It also enhances the flow and leveling
of the coating, resulting in a smoother finish.
2. Adhesives and sealants: Hydrophilic fumed silica is used in adhesives and sealants to improve their viscosity and thixotropic properties. It helps to control the flow of the adhesive or sealant, making it easier to apply and preventing sagging or dripping. It
also enhances the bonding strength and durability of the adhesive or sealant.
3. Pharmaceuticals: Hydrophilic fumed silica is used in pharmaceutical formulations as a flow aid and glidant. It improves the
flowability of powders, making them easier to handle and process. It also enhances the dissolution rate and bioavailability of
poorly soluble drugs.
4. Food and beverages: Hydrophilic fumed silica is used in the food and beverage industry as an anti-caking agent and thickener.
It prevents the clumping of powdered food ingredients and improves the texture and stability of sauces, dressings, and beverages.
5. Rubber and plastic compounds: Hydrophilic fumed silica is used in rubber and plastic compounds to improve their mechanical properties. It enhances the tensile strength, tear resistance, and abrasion resistance of rubber and plastic products. It also improves
the dispersion of fillers and reinforcements in the compound.
Overall, hydrophilic fumed silica is a versatile material with a wide range of applications. Its unique properties make it a valuable
additive in various industries, improving the performance and quality of products.
| Property | Unit | Typical Value |
| Specific surface area(BET) | M2/g | 150±15 |
| PH Value in 4% dispersion |
| 3.7-4.5 |
| Loss on dying(2h/105℃) | Wt% | ≤1.5 |
| Loss on ignition(2h/1000℃,based on material dried for 2h/105℃) | Wt% | ≤2.0 |
| Sieve residue(45 um) | Wt% | ≤0.04 |
| Silica content(Based on ignited material) | Wt% | ≥99.8 |
| Tamped density(Based on material dried for 2h /105℃) | g/L | 40-60 |
| Carbon content(Based on material dried for 2h /105℃) | g/L | ≤0.15 |
Anticorrosion Pigments, Inkjet Receptive Coating, Matting Agent
