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 Chemical Raw Material Silicon Dioxide Hydrophobic Pigment Fumed Silica with High Purity for Organic Silicon Rubber

High-Purity Hydrophobic Fumed Silica for Silicone Rubber

Costs Efficiency, Engineered for Demanding Applications

This hydrophobic fumed silica is a high-purity chemical resources made especially for usage in natural silicone rubber formulas. It provides strong thickening, anti-settling, and enhancing results without jeopardizing the end product’s quality or adaptability.

The silica bits are exceptionally great and have been surface-treated to drive away water. This treatment makes certain excellent dispersion in non-polar systems like silicone polymers. Therefore, the rubber preserves constant viscosity throughout processing and shows enhanced mechanical toughness after curing.

Made under strict quality controls, this product has really low degrees of contaminations such as hefty metals and moisture. High pureness is critical for applications where electric insulation, optical clarity, or long-lasting stability matters– such as in clinical gadgets, automotive seals, or electronic encapsulants.

Its hydrophobic nature protects against clumping throughout storage and handling. The powder streams freely and blends conveniently into base polymers. This causes smoother manufacturing runs and more uniform end products.

Trick Functions:
– Ultra-fine bit size for maximum surface
– Surface-modified for water resistance
– Low ash content and marginal volatile issue
– Improves tear strength and prolongation in treated rubber
– Suitable with addition-cure and condensation-cure silicone systems

Common Specifications:
– SiO two content: ≥ 99.8%.
– Details surface: 200– 400 m ²/ g (BET technique).
– Loss on drying (105 ° C, 2 humans resources): ≤ 0.5%.
– pH (4% diffusion in water): 3.5– 4.5.
– Bulk density: 40– 80 g/L.

This fumed silica fulfills worldwide criteria for pureness and performance. It is optimal for producers that require trusted, consistent cause high-end silicone rubber items.

Applications of Chemical Raw Material Silicon Dioxide Hydrophobic Pigment Fumed Silica with High Purity for Organic Silicon Rubber

High-Purity Hydrophobic Fumed Silica for Silicone Rubber

Improved Performance in Demanding Applications

This hydrophobic fumed silica is made from high-purity silicon dioxide. It is specifically dealt with to ward off water. The material works well in natural silicone rubber systems. It provides solid thickening and anti-settling results without absorbing moisture.

Makers use this silica to control circulation and stop sagging in sealers, adhesives, and RTV (room-temperature vulcanizing) silicone rubbers. Since it withstands water, it maintains efficiency secure even in moist problems. This makes the end products extra trusted with time.

Key Advantages:
– Boosts mechanical stamina and tear resistance
– Aids keep consistent thickness during storage and use
– Reduces clumping and makes sure even dispersion in formulas
– Functions efficiently with usual silicone polymers

The great particle dimension and high area allow it blend easily into rubber compounds. This brings about consistent support. The hydrophobic surface quits unwanted responses with wetness that could deteriorate the rubber or trigger bubbles during treating.

Normal Makes use of:
– High-performance industrial sealers
– Medical-grade silicone tubes and components
– Automotive gaskets and resonance dampeners
– Electrical insulation materials

Due to its purity and surface area therapy, this fumed silica fulfills rigorous high quality standards. It supports clean handling and assists stay clear of defects like discoloration or inadequate surface area finish. Individuals obtain a dependable additive that increases item top quality without making complex manufacturing.

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 Chemical Raw Material Silicon Dioxide Hydrophobic Pigment Fumed Silica with High Purity for Organic Silicon Rubber

Frequently Asked Questions

What is hydrophobic fumed silica?

Hydrophobic fumed silica is a special form of silicon dioxide. It is made by treating regular fumed silica with reactive silanes. This treatment changes its surface so it repels water. The result is a fine, free-flowing powder that mixes well into organic systems like silicone rubber.

Why use high-purity silica in silicone rubber?

High-purity silica has very few impurities. Impurities can weaken rubber or cause unwanted reactions. Using pure silica helps keep the rubber stable, strong, and consistent during production and use. It also supports better transparency and performance in final products.

How does this silica improve silicone rubber?

This silica acts as a reinforcing filler. It thickens the rubber mix and stops liquid from sagging or dripping. It also boosts tear strength, heat resistance, and overall durability. Because it is hydrophobic, it keeps moisture out, which helps the rubber last longer.

Is this product safe to handle?

Yes, but basic safety steps are needed. Always wear gloves, eye protection, and a dust mask when handling fine powders. Store the material in a dry, sealed container away from moisture. Follow the safety data sheet for full handling instructions.

Can it be mixed easily into silicone systems?

Yes. The hydrophobic surface lets it blend smoothly into silicone oils and rubbers without clumping. Use standard mixing equipment like planetary mixers or high-shear dispersers. Mix slowly at first to avoid dust, then increase speed to get a uniform paste.