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.

(hydrophobic fumed silica PDMS treated cas 67762-90-7 silicon dioxide powder coatings nano sio2 HB-139 free flow aid R202)

Specification of hydrophobic fumed silica PDMS treated cas 67762-90-7 silicon dioxide powder coatings nano sio2 HB-139 free flow aid R202

HB-139 R202 is hydrophobic fumed silica. It is silicon dioxide powder treated with PDMS. The CAS number is 67762-90-7. This material is a specialty additive. It is used mainly in powder coatings. It acts as a free-flow aid. Fumed silica is made at high temperatures. Vaporized silicon tetrachloride burns in hydrogen and oxygen flames. This process creates tiny silica particles. These particles form aggregates. The aggregates form bigger clusters. PDMS treatment changes the silica surface. PDMS stands for polydimethylsiloxane. This treatment makes the silica hydrophobic. Hydrophobic means it repels water. This property is important for powder flow. Untreated silica absorbs moisture. Absorbed moisture causes clumping. Clumping makes powder flow poorly. HB-139 R202 prevents this clumping. The powder flows freely. It moves easily during handling and application. It helps maintain powder consistency. The nano-sized particles disperse well. Good dispersion is key for performance. It avoids issues like caking. It ensures smooth powder transfer. This silica improves processing efficiency. It reduces waste from stuck powder. It helps achieve even coatings. Manufacturers add it to powder coating formulations. It works well with various resins. These include epoxy, polyester, and polyurethane. It enhances the final product quality. The powder spreads evenly on surfaces. It results in a uniform coating finish. This fumed silica is a reliable flow aid. It solves common powder handling problems.

(hydrophobic fumed silica PDMS treated cas 67762-90-7 silicon dioxide powder coatings nano sio2 HB-139 free flow aid R202)

Applications of hydrophobic fumed silica PDMS treated cas 67762-90-7 silicon dioxide powder coatings nano sio2 HB-139 free flow aid R202

This hydrophobic fumed silica powder is PDMS treated. It has the CAS number 67762-90-7. People know it as nano SiO2 HB-139 or free flow aid R202. Its surface is modified. This makes it repel water effectively. This property is crucial for many applications.

One major use is in powder coatings. Adding this silica prevents clumping. It keeps powder flowing freely. This ensures a smooth application. It helps create an even, high-quality finish. Paint manufacturers rely on it.

It works well in plastic compounds too. It helps powders mix better. It reduces dust during handling. This improves the final product quality. Production becomes easier and cleaner. Factories see the benefit.

The pharmaceutical industry uses this material. It acts as a flow agent for tablets. It stops powders from sticking together. This is vital for consistent dosing. It helps make reliable medicines. Patient safety depends on it.

Cosmetics benefit from this silica. It prevents caking in makeup powders. Products like foundation stay smooth. They apply evenly to the skin. Consumers appreciate the quality. Brands achieve better performance.

It helps in printing toner production. It keeps toner particles separate. This prevents blocking in printers. Machines run more reliably. Offices avoid frustrating jams. Productivity stays high.

Adhesives and sealants use it. It controls viscosity and prevents settling. The product stays usable longer. Application is smoother for workers. Bonding results are more dependable.

Its nano size provides a large surface area. The PDMS treatment makes it hydrophobic. These features work together. They deliver excellent anti-caking effects. They ensure superior powder flow. Industries gain operational efficiency. Products achieve higher performance standards.

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 hydrophobic fumed silica PDMS treated cas 67762-90-7 silicon dioxide powder coatings nano sio2 HB-139 free flow aid R202

Hydrophobic Fumed Silica HB-139 (R202) is a specially treated silicon dioxide powder. It uses PDMS treatment to make it repel water. This treatment gives it unique properties for many uses. It acts as a free-flow aid. This means it helps powders move easily. It stops powders from sticking together. This is vital for powder coatings. The powder flows smoothly during application. It creates a better finish on surfaces. This silica is very fine. It is a nano-sized material. Its small size helps it work effectively. It fills tiny spaces between powder particles. This reduces friction. The powder flows like liquid.

What is Hydrophobic Fumed Silica HB-139 (R202)?
It is a fine white powder. It is silicon dioxide treated with PDMS. This treatment makes it hydrophobic. It resists water. The CAS number is 67762-90-7. It is used mainly as a flow aid.

Why is the hydrophobic treatment important?
The PDMS treatment repels water. Moisture causes powder clumping. Clumping makes application hard. Hydrophobicity prevents moisture absorption. Powders stay dry and free-flowing.

How does HB-139 improve powder flow?
The tiny silica particles get between powder grains. They act like tiny ball bearings. This reduces friction between particles. The powder flows more easily. It prevents caking and clumping. Application is smoother.

Where is this silica typically used?
Its main use is in powder coatings. It ensures consistent flow during spraying. It gives an even, high-quality finish. It is also used in adhesives, sealants, and other powders. Anywhere free flow is needed.

What are the key benefits?
It prevents powder clumping and caking. It ensures consistent, smooth application. It improves the final finish quality. It enhances production efficiency. Less powder waste happens.

(hydrophobic fumed silica PDMS treated cas 67762-90-7 silicon dioxide powder coatings nano sio2 HB-139 free flow aid R202)