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.

(Evonik AERSIL R 202 Hydrophobic Fumed Silica Epoxy Vinyl Resin Thickener Thixotropic Agent Gelcoat Cable Adhesive Sealant)

Specification of Evonik AERSIL R 202 Hydrophobic Fumed Silica Epoxy Vinyl Resin Thickener Thixotropic Agent Gelcoat Cable Adhesive Sealant

Evonik AERSIL R 202 is hydrophobic fumed silica. It works as a thickener. It also works as a thixotropic agent. This product helps control flow in many materials. It prevents sagging. It quits trickling throughout application. Workers locate it easy to deal with.

This silica is hydrophobic. It drives away water successfully. This feature is essential in several applications. Moisture can harm efficiency. AERSIL R 202 keeps moisture away. This secures the final product.

Its thickening power is good. It builds viscosity quickly. This boosts the appearance of materials. It makes them less complicated to work with. The material remains where you place it. This is important for upright surfaces.

The thixotropic effect is strong. The product streams under shear stress. Assume mixing or spreading. When the stress stops, the material enlarges once more. This prevents settling. It prevents separation.

AERSIL R 202 has great bits. The bits are very little. This produces a huge surface area. The big surface area communicates well with resins. This interaction provides the thickening result. It boosts the thixotropy.

Its fragment size is regulated. The surface specifies. These elements influence its efficiency. They figure out just how much you need to utilize.

This silica is flexible. It operates in epoxy systems. It does well in vinyl ester materials. It enlarges gelcoats successfully. Manufacturers use it in wire adhesives. It enhances sealer formulations. It enhances paint rheology. It adjusts the circulation of printing inks. Lots of sectors rely on its buildings.

(Evonik AERSIL R 202 Hydrophobic Fumed Silica Epoxy Vinyl Resin Thickener Thixotropic Agent Gelcoat Cable Adhesive Sealant)

Applications of Evonik AERSIL R 202 Hydrophobic Fumed Silica Epoxy Vinyl Resin Thickener Thixotropic Agent Gelcoat Cable Adhesive Sealant

Evonik AEROSIL R 202 is hydrophobic fumed silica. It works quite possibly as a thickener. It also acts as a thixotropic agent. This implies it avoids fluids from leaking or drooping. It maintains materials steady during application. This is vital for lots of commercial usages.

This silica masters epoxy systems. It thickens epoxy materials effectively. It regulates the flow of the resin. This makes application simpler. Workers improve results with less mess. The product remains where it is applied. It does not escape vertical surfaces.

Plastic ester resins additionally benefit. AEROSIL R 202 enlarges these resins accurately. It gives the needed body. This improves handling features. Handling comes to be smoother. The final product high quality increases.

Gelcoat solutions utilize this silica as well. It stops the gelcoat from running. It ensures an also movie thickness. This causes a better surface coating. Issues are decreased. The gelcoat performs its protective role well.

In cable television compounds, R 202 is necessary. It thickens the insulation materials. This enhances extrusion buildings. The compound streams appropriately with the machine. The last wire insulation corresponds. It satisfies performance standards.

Adhesives obtain significant advantages. The silica enlarges the sticky paste. It avoids settling of fillers. It additionally quits the adhesive from trickling. This makes application cleaner. Bonds are more powerful and more reputable.

Sealers count on this item. It thickens the sealant base. It offers the sealer body. This enables easy application. The sealer does not sag in joints. It fills spaces properly. Long-term securing performance is enhanced.

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 Evonik AERSIL R 202 Hydrophobic Fumed Silica Epoxy Vinyl Resin Thickener Thixotropic Agent Gelcoat Cable Adhesive Sealant

What is Evonik AERSIL R 202?
Evonik AERSIL R 202 is a treated fumed silica. It is hydrophobic. This means it repels water. It acts as a thickener. It also gives thixotropic properties. Thixotropy means the material flows under shear but gels when standing. It is used in epoxy systems. It works in vinyl ester resins too. You find it in gelcoats, cable compounds, adhesives, and sealants.

How does AERSIL R 202 work?
AERSIL R 202 particles form a network. This network traps the liquid resin. It makes the mixture thicker. The network breaks down when you stir or apply the material. That makes it flow easily. The network rebuilds quickly when you stop mixing. This stops sagging or dripping. The hydrophobic surface keeps moisture out. This helps performance.

What are the main benefits?
This silica offers strong thickening power. You use less product to get the right thickness. It provides excellent anti-settling. Fillers stay mixed. It gives very good sag resistance on vertical surfaces. It improves storage stability. The mix stays usable longer. It boosts mechanical strength in the cured product. It enhances corrosion protection.

How is AERSIL R 202 added to resins?
Add the powder during mixing. Do this under good shear conditions. High shear mixing disperses the silica properly. Low shear mixing won’t break up the powder clusters. This leads to poor thickening and grit. Add it slowly. Adding too fast causes lumps. The powder must get fully wetted. Follow the supplier’s mixing guidelines.

Is AERSIL R 202 safe to handle?
Handle AERSIL R 202 like any fine powder. Avoid breathing in the dust. Use proper ventilation. Wear a dust mask. Wear safety glasses. Wear gloves. Skin contact is usually okay. Wash any powder off your skin. Keep it away from your eyes. Check the safety data sheet for full details.

(Evonik AERSIL R 202 Hydrophobic Fumed Silica Epoxy Vinyl Resin Thickener Thixotropic Agent Gelcoat Cable Adhesive Sealant)