Fumed Silica

Fumed silica, also known as pyrogenic silica, is a versatile and widely used nanomaterial. It is an amorphous form of silicon dioxide (SiO2) produced through the flame hydrolysis of silicon tetrachloride or other volatile silicon compounds. Fumed silica exhibits several key characteristics, including:

• High Specific Surface Area: With a surface area ranging from 50 to 400 m2/g, fumed silica provides excellent dispersion and stability.
• Low Bulk Density: Its fluffy nature results in low density, making it ideal for lightweight formulations.
• Thixotropic Behavior: Fumed silica exhibits thickening and anti-settling properties, which enhance the flow and stability of liquid systems.

These features make it an essential material in various industries such as coatings, adhesives, printing inks, cosmetics, food additives, rubber enhancers, plastic fillers, medicine and environmental protection. In addition, depending on the surface treatment, fumed silica can be hydrophilic or hydrophobic, which gives it different functions in different applications.

Meet Our Products

Alfa Chemistry is proud to offer a wide range of fumed silica products. Our fumed silica portfolio includes both hydrophilic and hydrophobic grades, tailored to meet the diverse needs of industries worldwide. Each product is meticulously engineered to deliver exceptional performance, offering solutions to various technical challenges. Please click the link below to explore our products.

Hydrophilic Fumed Silica

Hydrophobic Fumed Silica

Applications of Fumed Silica

Paints and Coatings

Fumed silica is extensively used in paints and coatings to improve viscosity control, prevent sagging, and enhance surface finish. Hydrophilic fumed silica is commonly used in water-based paints, while hydrophobic varieties are preferred for solvent-based systems.

Adhesives and Sealants

In adhesives and sealants, fumed silica acts as a thickening and anti-sagging agent, ensuring consistent application and strong bonding. Its reinforcement properties also enhance durability and resistance to environmental factors.

Personal Care Products

Fumed silica is an important ingredient in cosmetics and personal care formulations. It improves the texture and spreadability of creams, lotions, and powders, while hydrophobic fumed silica enhances water resistance in sunscreens and makeup products.

Pharmaceutical Industry

In pharmaceuticals, fumed silica is used as a glidant to improve the flow of powder formulations during manufacturing. It additionally functions as a stabilizer in suspensions and emulsions.

Rubber and Plastics

Fumed silica reinforces rubber and plastic products, improving their mechanical properties such as tensile strength and tear resistance. It is commonly utilized in automotive tires, gaskets, and industrial hoses.

Electronics and Energy

Fumed silica is used in the electronics industry for encapsulating and protecting sensitive components. It also plays a crucial role in producing advanced batteries and fuel cells by improving thermal stability and conductivity.

Fumed silica is a highly versatile material with applications spanning a wide range of industries. Its unique properties make it an indispensable component in many formulations. By offering both hydrophilic and hydrophobic fumed silica, Alfa Chemistry ensures that our products cater to a wide spectrum of applications, enabling customers to optimize their formulations and achieve superior results. Whether in paints, adhesives, personal care, or advanced technologies, our products continue to drive innovation and improve product performance. Please feel free to contact us if necessary.

If you can't find the specific product you're looking for, we are happy to provide customized solutions tailored to your requirements. Our expert team is dedicated to working closely with you to develop the perfect product that fits your unique application.

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