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.

Specification 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– Premium Free-Flow Help for Demanding Applications

Product Introduction

HB-139 is a hydrophobic fumed silica treated with polydimethylsiloxane (PDMS). Its CAS number is 67762-90-7. This nano-sized silicon dioxide powder supplies solid anti-caking and free-flow residential properties. It works well in powders that must stay loose, dry, and easy to take care of.

Key Includes

Solid water resistance — The PDMS surface treatment makes HB-139 extremely hydrophobic. It pushes back wetness and keeps formulations stable in damp conditions.
Outstanding flow control — Even at reduced does, it protects against clumping and guarantees smooth powder flow throughout storage and handling.
Fine particle dimension — With a main bit dimension in the nanometer variety, it spreads equally without influencing the final product’s quality or structure.
Chemical stability — HB-139 is inert and compatible with numerous natural and not natural systems. It does not respond under regular use conditions.

Common Uses

This silica is extensively used as a free-flow aid in:
– Powder coverings
– Pharmaceuticals
– Food-grade powders
– Cosmetics
– Industrial additives

In powder layers, HB-139 quits fragments from sticking. This helps keep regular spray efficiency and finish high quality. In food and pharma, it fulfills strict pureness criteria while boosting powder handling.

Handling and Storage

Store HB-139 in a great, dry place. Keep the container secured when not in use. Prevent direct exposure to dampness. Usage typical industrial health techniques when dealing with fine powders. Wear appropriate protective gear to prevent breathing or skin contact.

Applications 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: Performance-Driven Ingredient for Demanding Applications

Superior Flow and Anti-Caking Power

HB-139 is a hydrophobic fumed silica powder treated with PDMS (polydimethylsiloxane). Its CAS number is 67762-90-7. This nano-sized silicon dioxide acts as an extremely reliable free-flow representative. It quits powders from clumping with each other. Even in moist conditions, it maintains products moving smoothly.

Wide Use Across Industries

Makers utilize HB-139 in many dry powder systems. It functions well in coverings, adhesives, sealers, and construction chemicals. Paint makers add it to powder coatings to boost texture and prevent caking during storage space. In industrial powders like printer toners or pigments, it makes sure constant flow via hoppers and dispensers. The item likewise improves the security of fluid systems by regulating viscosity and quiting fragments from working out.

Why Pick HB-139?

The PDMS surface therapy offers HB-139 solid water-repellent buildings. This makes it ideal for items exposed to wetness. Its fine bit size and high surface area develop strong networks within formulations. These networks support structure without harming efficiency. The result is better handling, longer life span, and a lot more dependable end products. Individuals obtain consistent top quality set after batch.

Easy Integration

HB-139 mixes quickly into many systems. It spreads well with conventional devices. You do not require special handling actions. A percentage– frequently just 0.5% to 2%– provides clear advantages. This makes it an affordable service for improving product behavior. Whether you work with cosmetics, food-grade powders, or technical products, HB-139 offers dependable performance.

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

Frequently Asked Questions About Hydrophobic Fumed Silica HB-139 (CAS 67762-90-7)

What is hydrophobic fumed silica HB-139?

HB-139 is a nano-sized silicon dioxide powder. It is treated with PDMS (polydimethylsiloxane), which makes it water-repellent. This product is used as a free-flow aid in coatings, powders, and other industrial materials.

Why is it called “hydrophobic”?

The surface of this silica has been chemically modified. Because of the PDMS treatment, it repels water instead of absorbing it. This helps keep powders dry and prevents clumping in humid conditions.

How does HB-139 improve flow in powders?

HB-139 reduces friction between particles. It acts like tiny ball bearings that help powders move smoothly. This stops caking and ensures even mixing during production or application.

Where is this silica commonly used?

It is widely used in powder coatings, adhesives, sealants, and cosmetics. It also works well in construction materials and specialty chemicals where moisture resistance and good flow are needed.

Is HB-139 safe to handle?

Yes, when used as directed. Always follow safety guidelines. Wear gloves and a mask to avoid breathing in fine dust. Store it in a cool, dry place with the container tightly closed. Keep it away from moisture to maintain its performance.