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 Amorphous Fumed Silica in High Purity Fumed Silica 215 SiO2 Hydrophobic Silica

High Pureness Fumed Silica 215– Hydrophobic Amorphous SiO ₂

Item Overview

High Pureness Fumed Silica 215 is a hydrophobic amorphous silica made from high-quality raw materials. It provides outstanding efficiency popular applications that need consistent high quality and reputable behavior. The product is produced via a flame hydrolysis process, after that treated with dimethyldichlorosilane to give it water-repelling buildings.

Secret Specifications

The product includes over 99.8% SiO ₂, ensuring minimal contaminations. Its specific surface falls between 190– 230 m TWO/ g, determined by the BET approach. The pH value in a 4% diffusion is around 3.6– 4.6. Loss on drying out at 105 ° C for 2 hours remains below 1.0%. Ignition loss at 1000 ° C is commonly under 2.0%. The item appears as a penalty, free-flowing white powder without noticeable agglomerates.

Performance Includes

This hydrophobic fumed silica withstands moisture well. It mixes easily right into organic systems and provides strong enlarging and anti-settling effects. It likewise improves scrape resistance and flow control in finishes. In adhesives and sealants, it aids avoid drooping and keeps form security. The powder continues to be steady throughout a wide temperature range and does not respond with the majority of common chemicals.

Typical Applications

You can use this silica in silicone rubber, paints, inks, adhesives, and cosmetics. It functions well in systems where water level of sensitivity have to be avoided. The item also supports efficiency in high-end commercial formulas that require tidy, constant resources.

Handling and Storage

Store the item in a dry, amazing area far from dampness. Keep containers secured when not being used. Usage standard industrial hygiene techniques during handling. Avoid breathing dirt and use protective gloves if required.

Applications of Amorphous Fumed Silica in High Purity Fumed Silica 215 SiO2 Hydrophobic Silica

Applications of Amorphous Fumed Silica in High Pureness Fumed Silica 215 SiO Two Hydrophobic Silica

Enhancing Efficiency in Coatings and Paints

High Pureness Fumed Silica 215 is commonly used in finishings and paints. It protects against pigment settling and boosts storage stability. The hydrophobic nature of this silica aids control circulation and progressing. This causes a smoother surface and much better surface area look. It likewise improves scrape resistance without impacting gloss.

Thickening and Anti-Settling in Adhesives and Sealers

In adhesives and sealants, Fumed Silica 215 function as a thickening agent. It quits fillers and other solids from sinking during storage. The material maintains the product attire and easy to use. Its hydrophobic surface area ensures performance remains regular even in moist problems.

Improving Rheology in Inks and Toners

Printing inks and toners gain from the addition of hydrophobic fumed silica. It offers the appropriate thickness for sharp print high quality. The powder additionally decreases clumping and sustains free-flowing actions in dry toner formulas. This causes trusted efficiency in both fluid and powder systems.

Stabilizing Cosmetics and Personal Care Products

Aesthetic makers utilize Fumed Silica 215 to regulate texture and really feel. It takes in excess oil on the skin while maintaining items lightweight. In powders and creams, it prevents caking and makes certain even spread. Its high pureness fulfills strict safety and security requirements for skin call.

Sustaining Specialty Industrial Makes Use Of

This silica discovers use in numerous commercial applications. It works in cord compounds to improve fire resistance. It additionally serves in lubricating oils to maintain structure under stress. Because it is amorphous and highly pure, it does not conflict with chemical reactions or electric buildings. This makes it suitable for delicate technological settings.

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 Amorphous Fumed Silica in High Purity Fumed Silica 215 SiO2 Hydrophobic Silica

Frequently Asked Questions About High Purity Fumed Silica 215 (Hydrophobic Amorphous SiO₂)

What is High Purity Fumed Silica 215?

High Purity Fumed Silica 215 is a hydrophobic form of amorphous silica. It is made by flame hydrolysis of silicon tetrachloride. The surface is treated to repel water. This makes it ideal for use in moisture-sensitive applications.

How does hydrophobic fumed silica differ from hydrophilic types?

Hydrophilic fumed silica attracts water. Hydrophobic fumed silica, like Grade 215, resists water. This difference comes from surface treatment with organosilanes. The treatment changes how the powder interacts with liquids and improves performance in non-polar systems.

What are the main uses of this silica?

Grade 215 is used as a thickening, anti-settling, or reinforcing agent. Common applications include adhesives, sealants, coatings, and specialty polymers. It also works well in cosmetics and industrial fluids where water resistance matters.

Is this product safe to handle?

Yes, but standard precautions apply. Avoid breathing dust. Use gloves and eye protection when handling large amounts. Store in a dry place away from moisture. Always follow the safety data sheet (SDS) guidelines.

How should I disperse High Purity Fumed Silica 215?

Dispersion requires high-shear mixing. Add the silica slowly to the liquid under agitation. Pre-mixing with a solvent or resin helps prevent clumping. Proper dispersion ensures full performance benefits like viscosity control and stability.