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 Silicon Dioxide Fine Powder Hydrophobic/Hydrophilic Fumed Silica Supplied by Fumed Silica

Requirements of Silicon Dioxide Fine Powder– Hydrophobic & Hydrophilic Fumed Silica

Fumed silica is a high-purity form of silicon dioxide (SiO ₂) made via flame hydrolysis. It appears as a penalty, white powder with excellent circulation and dispersion residential or commercial properties. This item is offered in 2 primary kinds: hydrophilic and hydrophobic.

Hydrophilic Fumed Silica

This kind has an all-natural fondness for water. Its surface area includes silanol (Si-OH) groups that form hydrogen bonds with wetness. It functions well as a thickening agent, anti-settling additive, or free-flow help in paints, coatings, adhesives, and cosmetics. Normal area ranges from 50 to 400 m ²/ g. The pH in a 4% liquid suspension generally falls in between 3.6 and 4.6.

Hydrophobic Fumed Silica

Hydrophobic fumed silica is treated with organosilanes or other agents to reduce surface polarity. This makes it drive away water and resist moisture absorption. It is suitable for applications calling for lasting stability in damp environments, such as sealants, greases, and powder finishings. Usual surface therapies consist of dimethyldichlorosilane or hexamethyldisilazane. Surface area values are similar to hydrophilic grades, yet the product reveals no quantifiable pH as a result of its water-repellent nature.

Both kinds meet strict high quality standards. They consist of over 99.8% SiO two and have very low levels of pollutants like Na two O, Fe Two O SIX, and Cl ⁻. Fragment size standards in between 5 and 50 nanometers, developing chain-like accumulations that produce solid three-dimensional networks in fluids or powders.

Packaging alternatives consist of multi-layer paper bags (10 kg or 20 kg) or big bags (500 kg). Store in a completely dry, amazing area far from straight sunshine. Maintain containers secured when not in use to prevent clumping or contamination.

Fumed silica from our facility delivers regular performance set after set. It supports solution security, texture control, and boosted dealing with throughout lots of commercial and customer items.

Applications of Silicon Dioxide Fine Powder Hydrophobic/Hydrophilic Fumed Silica Supplied by Fumed Silica

Applications of Silicon Dioxide Penalty Powder

Hydrophobic and Hydrophilic Fumed Silica for Industrial Use

Fumed silica made from silicon dioxide great powder comes in 2 major kinds: hydrophobic and hydrophilic. Both supply solid performance in numerous markets.

Hydrophilic fumed silica mixes well with water and polar fluids. It functions as a thickener, anti-settling agent, and reinforcing filler. Paints, finishings, adhesives, and sealers use it to control circulation and avoid pigments from sinking. In cosmetics, it aids powders stay smooth and blend evenly. Rubber and plastics also utilize it to enhance strength and durability.

Hydrophobic fumed silica fends off water. This makes it ideal for items that need to stand up to moisture. It is used in construction sealers, aquatic finishings, and exterior paints. Due to the fact that it does not absorb water, it maintains products secure in damp or damp problems. It also works as a free-flow representative in powders like spices, pharmaceuticals, and toners, stopping them from clumping together.

Both kinds aid regulate viscosity without transforming the product’s appearance or feature. They include structure to liquids so they do not run or drip. In greases and lubes, they stop oil from dripping out in time. In food-grade applications, only approved grades are used to ensure safety and security.

Makers choose fumed silica based on what the end product demands. If water resistance matters, they choose hydrophobic. If simple combining with water-based systems is vital, they opt for hydrophilic. The fine particle dimension and high surface area give consistent results batch after batch.

Fumed silica from relied on suppliers meets stringent quality criteria. It remains pure, does accurately, and blends smoothly into intricate formulas. This makes it a best additive across lots of markets– from auto and electronics to personal treatment and building and construction.

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 Silicon Dioxide Fine Powder Hydrophobic/Hydrophilic Fumed Silica Supplied by Fumed Silica

Frequently Asked Questions About Fumed Silica

What is fumed silica?

Fumed silica is a very fine powder made from silicon dioxide. It is produced through a high-temperature process that creates tiny particles. These particles give the powder special thickening and anti-caking properties. We offer both hydrophobic (water-repelling) and hydrophilic (water-attracting) types to suit different needs.

What is the difference between hydrophobic and hydrophilic fumed silica?

Hydrophilic fumed silica mixes well with water and polar liquids. Hydrophobic fumed silica resists water and works better in oils or non-polar systems. The surface of hydrophobic silica is treated with special chemicals to repel moisture. Choose based on your product’s base—water-based or oil-based.

Where is fumed silica used?

Fumed silica is used in many industries. You’ll find it in paints, coatings, adhesives, sealants, cosmetics, and food products. It helps control flow, prevent settling, and improve texture. In rubber and plastics, it boosts strength and stability. Each application may need either the hydrophobic or hydrophilic version.

Is fumed silica safe to handle?

Yes, but you must follow safety guidelines. Fumed silica is not toxic, but its fine dust can irritate eyes, skin, and lungs. Always wear gloves, goggles, and a mask when handling large amounts. Store it in a dry, sealed container away from moisture and contaminants.

How should I store fumed silica?

Keep fumed silica in a cool, dry place. Use tightly closed containers to avoid exposure to humidity. Moisture can cause clumping, especially in hydrophilic grades. Hydrophobic types resist moisture better but still need proper storage to maintain performance. Do not store near strong acids or bases.