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 Silica Fumed / SiO2 Hydrophobic Nano Silica Powder / SiO2 silicon dioxide

Hydrophobic Nano Silica Powder– High-Purity SiO ₂

Product Overview

This product is a hydrophobic fumed silica made from high-purity silicon dioxide (SiO TWO). It looks like a fine, free-flowing white powder. The bits are nano-sized and treated to fend off water. This makes the powder suitable for use in atmospheres where moisture resistance is required.

Key Includes

The powder has solid enlarging and anti-settling residential properties. It enhances thickness control in fluids without altering their quality. Because it is hydrophobic, it does not absorb water from the air. This helps preserve steady efficiency throughout storage space and usage. The material likewise uses exceptional diffusion in natural systems like resins, oils, and solvents.

Technical Specifications

– Chemical Solution : SiO TWO.
– Purity : ≥ 99.8%.
– Surface Treatment : Trimethylsilyl groups.
– Wager Surface : 130– 200 m ²/ g.
– Loss on Drying (105 ° C, 2h) : ≤ 1.0%.
– pH Value (4% diffusion) : 3.6– 4.6.
– Bulk Thickness : 40– 80 g/L.
– Particle Dimension (main) : 7– 40 nm.

Common Applications

This hydrophobic nano silica is widely made use of in layers, adhesives, sealants, and inks. It avoids pigment settling and regulates drooping on vertical surface areas. In cosmetics, it works as a matting agent and boosts texture. The powder likewise enhances thermal stability and mechanical strength in silicone rubber and various other polymers. Its water-repellent nature makes it important in digital potting compounds and moisture-sensitive formulations.

Handling and Storage

Store the powder in a dry, cool area in secured containers. Avoid wetness and straight sunlight. Use basic commercial hygiene techniques when managing. Avoid breathing dust and contact with eyes or skin.

Applications of Silica Fumed / SiO2 Hydrophobic Nano Silica Powder / SiO2 silicon dioxide

Applications of Hydrophobic Nano Silica Powder (SiO ₂)

Stronger, Easier Coatings

Hydrophobic nano silica powder is commonly utilized in paints and finishings. It assists produce a smooth surface that wards off water and resists dirt. This makes wall surfaces, roofs, and outside surface areas simpler to tidy and a lot more long lasting in time.

Better Performance in Adhesives and Sealants

When added to adhesives or sealers, this silica boosts thickness control and avoids drooping. It additionally enhances bond strength and keeps the product secure under different temperatures and moisture levels.

Improved Rubber and Plastic Products

Producers mix hydrophobic silica into rubber and plastic to enhance strength and use resistance. It also helps these products stay versatile without breaking, even after long use or exposure to harsh conditions.

Top Quality Inks and Toners

In printing, this nano silica manages flow and drying out speed. It stops ink from smearing and gives sharper, more clear prints. Printer toner cartridges additionally use it to enhance powder circulation and decrease clumping.

Specialty Uses in Electronics and Cosmetics

Electronics makers make use of hydrophobic silica to secure circuits from moisture. In cosmetics, it takes in oil, gives a smooth feeling, and helps powders remain uniformly spread out on skin. Its fine particles blend smoothly without leaving grit.

Reliable Additive for Industrial Formulations

Because it stands up to water and blends well with many materials, hydrophobic nano silica is a relied on additive across sectors. It remains steady throughout storage and processing, which helps makers maintain item high quality consistent batch after batch.

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 Silica Fumed / SiO2 Hydrophobic Nano Silica Powder / SiO2 silicon dioxide

Frequently Asked Questions About Hydrophobic Nano Silica Powder

What is hydrophobic nano silica powder?

Hydrophobic nano silica powder is a very fine form of silicon dioxide (SiO₂). It has been treated so it repels water. This makes it different from regular silica, which absorbs moisture. The particles are extremely small—measured in nanometers—which gives the powder special properties.

Why is it called “hydrophobic”?

“Hydrophobic” means water-repelling. During production, the surface of the silica particles is coated with special chemicals like silanes. This coating stops water from sticking to or soaking into the powder. As a result, the material stays dry and free-flowing even in humid conditions.

Where is this powder used?

This powder is used in many industries. Paints and coatings use it to improve scratch resistance and prevent water damage. In adhesives and sealants, it helps control thickness and stop sagging. Cosmetics use it for a smooth feel and oil control. It also appears in electronics, construction materials, and specialty plastics.

How does it improve product performance?

Because the particles are so tiny and evenly spread, they strengthen materials without changing their look. They thicken liquids just enough to keep them stable. They also block moisture, which helps products last longer. In powders or sprays, they prevent clumping and ensure even mixing.

Is it safe to handle?

Yes, when used correctly. Like any fine powder, avoid breathing in the dust. Use gloves and eye protection if handling large amounts. Store it in a dry, sealed container away from moisture. Always follow the safety instructions on the product label or safety data sheet.