Discover premium silica dioxide, industrial grade SiO2, for various applications.
PRODUCT PARAMETERS
Description
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 Moisture-proof And Hardening After-Treated by Hydrophobic Fumed Silica China Fumed Silica Cabot Fumed Silica
Moisture-Proof and Hardening After-Treated Hydrophobic Fumed Silica
Superior Efficiency for Demanding Applications
This hydrophobic fumed silica is made in China using sophisticated surface area treatment innovation. It supplies strong wetness resistance and excellent solidifying residential or commercial properties. The product starts with high-purity fumed silica. Then it undergoes an unique after-treatment process that bonds hydrophobic teams to its surface. This adjustment makes the material repel water effectively.
The treated silica keeps its great fragment size and big surface. These traits aid it blend well into different systems. It functions efficiently in layers, adhesives, sealants, and composite materials. Since it resists dampness, it protects against clumping and keeps flow throughout storage space and use. This stability is crucial in damp settings or when long service life is needed.
Trick Benefits:
– Blocks moisture absorption
– Enhances mechanical strength after treating
– Boosts thixotropy and anti-settling performance
– Keeps constant top quality gradually
Manufacturers pick this silica when they need trusted thickening and support without endangering on water resistance. It likewise aids control thickness without including added solvents. The result is a cleaner, more efficient formula.
This product fulfills strict high quality criteria. Every batch is examined for surface therapy completeness, wetness content, and particle dispersion. Customers get consistent performance from one order to the next. It carries out like leading international brands such as Cabot fumed silica however with far better neighborhood assistance and supply reliability.
Whether you are making industrial finishes, electronic encapsulants, or building and construction chemicals, this hydrophobic fumed silica delivers reputable results. Its equilibrium of solidity, dryness, and ease of use makes it a clever option for formulators that value both performance and practicality.

Applications of Moisture-proof And Hardening After-Treated by Hydrophobic Fumed Silica China Fumed Silica Cabot Fumed Silica
Moisture-Proof and Solidifying Applications of Hydrophobic Fumed Silica
Strong Defense Against Wetness
Hydrophobic fumed silica is commonly made use of to keep products completely dry. It wards off water effectively. This makes it ideal for use in settings where moisture triggers damage. Paints, finishings, and adhesives treated with this product remain stable even in moist problems. The silica creates a barrier that quits water from entering. This assists extend the life of lots of industrial and consumer goods.
Better Hardening and Structural Stamina
When added to materials like sealants, materials, or construction compounds, hydrophobic fumed silica enhances solidity. It acts as a reinforcing filler. The fragments bond tightly with the base product. This creates a denser, a lot more solid structure. Products come to be more resistant to use, breaking, and contortion with time.
Usage in High-Performance Industries
China-made fumed silica, including kinds similar to Cabot fumed silica, meets stringent top quality criteria. It is made use of in electronic devices, vehicle parts, and structure materials. In electronics, it safeguards delicate elements from moisture. In automotive sealants, it guarantees long-lasting efficiency under challenging climate. Construction sealants with this additive stay adaptable yet solid, withstanding both water and physical stress.
Easy to Mix and Manage
This silica flows well and blends uniformly into fluids or pastes. It does not glob. That implies producers get regular outcomes set after set. Its hydrophobic nature also avoids it from taking in dampness throughout storage or transportation. This keeps the raw material ready to utilize whenever required.
Relied On Top Quality from Leading Producers
Chinese manufacturers now provide hydrophobic fumed silica that matches global benchmarks. These products supply dependable dampness resistance and hardening effects. They are a clever selection for business looking for high performance at a competitive price. Whether you work in manufacturing, building, or specialized chemicals, this material adds genuine worth to your solutions.
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 Moisture-proof And Hardening After-Treated by Hydrophobic Fumed Silica China Fumed Silica Cabot Fumed Silica
Frequently Asked Questions
What is hydrophobic fumed silica?
Hydrophobic fumed formulate silica is a special type of fumed silica treated to repel water. It starts as regular fumed silica, then gets coated with chemicals like silanes. This coating makes the surface water-resistant. The result is a fine powder that stays dry even in humid conditions.
How does it add moisture resistance?
The treated surface blocks water from sticking to or soaking into the material. When mixed into coatings, adhesives, or sealants, it stops moisture from getting inside. This keeps the product stable and prevents damage caused by water exposure.
Why does it help harden materials?
Hydrophobic fumed silica acts as a thickening and reinforcing agent. It forms a network inside liquids or pastes, which adds structure. This network holds everything together better, making the final product harder and more durable once it cures.
Is Cabot fumed silica different from other brands?
Cabot is a well-known global producer with strict quality control. Their hydrophobic fumed silica offers consistent particle size, high purity, and reliable performance. Many manufacturers choose Cabot because it delivers steady results batch after batch.
Where is this silica used in China?
In China, it is widely used in construction sealants, industrial coatings, adhesives, and electronic encapsulants. Local producers rely on it to improve product shelf life and performance in wet or humid environments. It also helps meet national standards for durability and safety in building materials.
REQUEST A QUOTE
RELATED PRODUCTS
CAS NO 7631-86-9 Silicon Dioxide Hydrophobic Fumed Silica Fusil215
Buysway Precipitated Silica Meteorological White Carbon Black Silicon Dioxide White Pure Fumed Spherical Nano Silica
Micron Activated High Purity Amorphous Fused Nano Fume Silica Aerogel Powder Hydrophobic
Whole industrial grade CAS 112945-52-5 SiO2 silica/fuse white powder silica fume free sample/fumed silica
