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.

(Hydrophilic Fumed Silica for Painting And Coating)

Specification of Hydrophilic Fumed Silica for Painting And Coating

Hydrophilic fumed silica enhances paint and layer efficiency. This specialized additive deals vital features. It successfully regulates rheology. The silica thickens liquid systems. This thickening quits drooping on upright surfaces. It stops unwanted settling of pigments and fillers. Your paint stays attire throughout storage and application.

The item serves as a powerful anti-settling representative. Pigments remain put on hold much longer. You avoid hard packs creating at the bottom of the canister. This conserves time and effort. Employees do not require to regularly mix the material. The silica strengthens the fluid framework. It aids maintain hefty bits equally dispersed.

This silica improves application homes. It produces smooth, even movies. Brush drag decreases substantially. Spraying becomes simpler and a lot more regular. The silica improves the overall flow actions. Painters achieve better leveling outcomes. The final surface looks much more expert.

Hydrophilic fumed silica masters water-based systems. It distributes conveniently in liquid environments. The surface area has numerous silanol teams. These groups communicate highly with water molecules. This interaction drives the enlarging mechanism. The silica constructs a network framework throughout the fluid.

Key requirements specify its efficiency. High area is typical. This area ranges from 150 to over 400 m ²/ g. More area means stronger enlarging power. The pH value is generally acidic. Usual pH degrees are in between 3.5 and 4.5. Dampness material remains reduced. This is very important for security. Thickness is very light. Mass density is usually around 40 g/l. Tamped density could reach 50 g/l. Fragment dimension is very small. Main fragments gauge just 7 to 40 nanometers. These tiny particles form larger accumulations. The aggregates produce the preferred thickening impact.

(Hydrophilic Fumed Silica for Painting And Coating)

Applications of Hydrophilic Fumed Silica for Painting And Coating

Hydrophilic fumed silica is a vital helper in paints and finishings. It solves usual problems. This material is really fine powder. It acts like tiny sponges for water. This provides it valuable powers.

Paint manufacturers include hydrophilic fumed silica to stop sagging. Thick paint layers on wall surfaces or steel can leak before drying out. The silica develops framework inside the damp paint. This framework holds the paint up. Employees use hefty brushstrokes without drips. It works well for high-build layers on pipes or bridges.

One more huge job is avoiding resolving. Hefty stuff like pigments sinks to the can base over time. The silica creates a loosened network in the fluid. This network traps pigments and fillers. The mixture remains also. Your paint color remains the exact same from the initial dip to the last. Storage life boosts. Trembling the can is easier.

Hydrophilic fumed silica additionally manages gloss. Often you require a matte surface, not shiny. Including silica fragments scatters light hitting the surface. This scattering reduces sparkle successfully. It gives furnishings coatings or wall paints a smooth, non-reflective look. The quantity added chooses the last shine level.

It boosts fluid paint security also. The silica thickens the formula slightly. This thickening assists throughout application. Splashing or rolling ends up being smoother. Runs are less likely. The paint flows perfectly onto the surface. It sticks better.

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 Hydrophilic Fumed Silica for Painting And Coating

What is hydrophilic fumed silica used for in paints and coatings?
Hydrophilic fumed silica acts as a thickener and anti-settling agent. It helps prevent pigments and fillers from sinking to the bottom of the can. This keeps the coating stable during storage. It also helps control how the paint flows when applied.

How much hydrophilic fumed silica should I add?
The right amount depends on the specific paint formula and the thickness needed. Usually, manufacturers add between 0.5% and 2.0% by weight. Start with a lower amount. Test the result. Add more slowly if you need a thicker mixture. Too much can make the paint too thick or even gel.

How do I mix hydrophilic fumed silica into paint?
Mixing it properly is important. Add the silica powder slowly while the paint base is stirring fast. High shear mixing works best. This breaks up clumps and spreads the silica particles evenly. Adding it too fast or mixing too slow causes lumps. These lumps are hard to break later.

Is hydrophilic fumed silica safe to handle?
Yes, but care is needed. The fine powder can float in the air easily. Breathing in this dust is not good. Always work in a well-ventilated area. Wear a dust mask approved for fine particles. Wear gloves and safety glasses too. This protects your skin and eyes.

How should I store hydrophilic fumed silica?
Keep the silica bags tightly sealed in a cool, dry place. Moisture makes the powder clump together. Clumped silica is much harder to mix into paint properly. Store bags off the floor on pallets. This prevents moisture from the ground getting in.

(Hydrophilic Fumed Silica for Painting And Coating)