Overview of Fumed Silica

Fumed silica, also known as pyrogenic silica, is an ultra-fine, high-purity amorphous silicon dioxide (SiO2) produced via the combustion of silicon tetrachloride in an oxygen-hydrogen flame. It appears as a fluffy white powder and is valued for its ability to thicken, stabilize, and reinforce materials.

Features of Fumed Silica

• High Surface Area: Typically ranges from 50 to 380 m²/g, providing excellent thickening and reinforcing properties.
• Hydrophilic or Hydrophobic Variants: Available in both forms depending on surface treatment, allowing for tailored applications.
• Excellent Thixotropy: Increases viscosity and improves flow properties of liquids and pastes.
• Chemical Inertness: Resistant to most chemicals, making it suitable for a wide range of industrial uses.

•  Enhances free-flowing properties and stability.

(fumed silica AEROSIL 300 (Thickener) by Evonik)

Specification of fumed silica AEROSIL 300 (Thickener) by Evonik

AEROSIL 300 is a fumed silica product made by Evonik. It works as a thickener in liquids. The product is made through a high-temperature process. This process creates tiny particles with a large surface area. The surface area of AEROSIL 300 is about 300 square meters per gram. This large surface area helps thicken liquids effectively.

The primary use of AEROSIL 300 is to adjust the flow of liquid systems. It is common in coatings, adhesives, and sealants. The particles are very small, with an average size between 7 and 40 nanometers. Their small size lets them spread evenly in liquids. This even spread improves thickening performance.

AEROSIL 300 has a low bulk density. This makes it easy to mix into liquids without clumping. The product is hydrophilic, meaning it works well in water-based systems. It can also work in solvent-based systems. The pH of AEROSIL 300 is around 3.7 to 4.5. This mild acidity makes it compatible with many materials.

The thickening effect comes from the particles forming a network in the liquid. This network traps liquid molecules, increasing viscosity. The result is a stable, non-runny consistency. AEROSIL 300 works even at low concentrations. This reduces the amount needed for thickening.

The product is chemically inert. It does not react with most substances. This stability ensures long-term performance in final products. AEROSIL 300 also resists high temperatures. It can handle up to 600 degrees Celsius without breaking down.

Moisture content in AEROSIL 300 is kept below 1.5%. Low moisture prevents clumping during storage. The product comes as a white, fluffy powder. It is free-flowing and easy to handle.

AEROSIL 300 meets industry standards for safety and quality. It is non-toxic and safe for use in industrial applications. Proper handling includes avoiding dust inhalation. Storage should be in a dry, cool place.

Applications for AEROSIL 300 include paints, printing inks, and resins. It improves texture and prevents settling in these products. The product also enhances the durability of coatings. Its versatility makes it a popular choice across industries.

(fumed silica AEROSIL 300 (Thickener) by Evonik)

Applications of fumed silica AEROSIL 300 (Thickener) by Evonik

AEROSIL 300 from Evonik is a fumed silica product used as a thickener in many industries. It works well in liquids to control texture and stability. The small particle size and high surface area make it effective for adjusting flow properties. It is popular in coatings, adhesives, and sealants. In coatings, it prevents sagging on vertical surfaces. It keeps pigments from settling, ensuring even color distribution. Paint applies smoothly and dries without dripping.

Adhesives and sealants use AEROSIL 300 to improve viscosity. It adds body to liquid formulas, helping them stay in place during application. The product resists temperature changes, maintaining performance in hot or cold conditions. It works in silicone-based and water-based systems. This flexibility makes it useful for industrial and consumer applications.

Cosmetics and personal care products rely on AEROSIL 300 for texture control. It thickens creams, lotions, and gels without affecting spreadability. The ingredient feels smooth on skin and does not leave residue. It stabilizes emulsions, preventing oil and water from separating. This ensures consistent product quality over time.

In pharmaceuticals, AEROSIL 300 acts as a thickening agent for ointments and pastes. It helps control release rates of active ingredients. The material is chemically inert, safe for medical use. It meets strict purity standards, making it suitable for sensitive applications.

Industrial applications include resins and composites. AEROSIL 300 enhances the handling of liquid resins before curing. It reduces dripping and improves workability. The product strengthens final composites by distributing stress evenly. This increases durability in materials like fiberglass or carbon fiber.

Printing inks use AEROSIL 300 to adjust viscosity. It prevents ink from spreading too quickly on substrates. This sharpens print quality and reduces smudging. The additive works with solvent-based and UV-curable inks.

Evonik produces AEROSIL 300 using high-temperature hydrolysis of silicon tetrachloride. The process creates ultra-fine particles with consistent properties. The product is easy to disperse using standard mixing equipment. Proper dispersion maximizes thickening efficiency. Users should add it gradually during production to avoid clumping.

AEROSIL 300 is a reliable choice for formulators needing precise control over product consistency. Its versatility across industries stems from strong performance in diverse conditions. The product supports manufacturing processes by improving stability and ease of use. Evonik’s expertise ensures high-quality fumed silica tailored to meet specific application needs.

Company Introduction

Welcome to HiphopGalaxy, a trusted global supplier of high-quality silicon dioxide (SiO2) powder, renowned for its exceptional purity and performance. Established with a vision to deliver cutting-edge materials that meet the diverse needs of modern industries, we have positioned ourselves as a leading player in the international market.

Our SiO2 powders find applications across multiple sectors, including adhesives, coatings, pharmaceuticals, cosmetics, polymers, and electronics. Each application benefits from the unique properties of our products—high surface area, excellent thixotropy, chemical inertness, and superior reinforcement capabilities. Whether you need hydrophilic or hydrophobic variants, we offer tailored solutions to meet your specific requirements.

If you have any questions, please feel free to contact us(nanotrun@yahoo.com).

Payment Methods

T/T, Western Union, Paypal, Credit Card etc.

Shipment Methods

By air, by sea, by express, as customers request.

5 FAQs of fumed silica AEROSIL 300 (Thickener) by Evonik

What is AEROSIL 300? AEROSIL 300 is a fumed silica thickener made by Evonik. It is a fine white powder. It works in liquids to improve texture and stability. The particles are very small and pure. They create a strong thickening effect. This makes products thicker without changing color or clarity.

Where is AEROSIL 300 used? It is used in many industries. Common examples include coatings, adhesives, and sealants. It also appears in cosmetics and pharmaceuticals. It helps control how liquids flow. It stops coatings from sagging on vertical surfaces. It keeps formulas stable over time.

How does AEROSIL 300 thicken liquids? The particles form a network when mixed into liquids. This network traps liquid molecules. The result is higher viscosity. Mixing speed and time affect performance. The pH of the liquid matters too. Proper dispersion is key for best results.

Is AEROSIL 300 safe to handle? It is safe when used correctly. Avoid breathing in the dust. Wear gloves and goggles. Follow local safety rules. Check Evonik’s safety sheet for details. Store it away from food and drink. Keep it in a ventilated area.

How should AEROSIL 300 be stored? Keep it dry in a sealed container. Moisture makes it clump. Clumps reduce thickening power. Store it at room temperature. Mix it slowly into liquids to avoid lumps. Use tools like high-speed mixers for even dispersion.

(fumed silica AEROSIL 300 (Thickener) by Evonik)