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 Undensified Microsilica Fume Silica Factory
Undensified Microsilica Fume– Item Requirements
What It Is
Undensified microsilica fume is a really fine powder made throughout the production of silicon or ferrosilicon in electrical arc heaters. It is composed mostly of amorphous silica (SiO TWO) and appears as a light gray or off-white cosy product. Due to the fact that it is not compacted, it has a reduced bulk density and high surface area.
Secret Residences
This item normally includes 85– 97% SiO ₂. Its typical fragment dimension is around 0.1 to 0.5 micrometers, which is about 100 times smaller sized than common cement fragments. The mass thickness ranges from 150 to 250 kg/m five in its undensified state. Loss on ignition generally stays below 3%, and moisture content is kept under 1.5%.
Exactly how It Is Made use of
Undensified microsilica fume is mainly included in high-performance concrete, refractory castables, and specialized mortars. It fills up small voids in between concrete grains, making the end product denser and more powerful. It likewise boosts longevity versus water, chemicals, and heat. Because it responds with calcium hydroxide, it aids create even more secure substances that improve lasting toughness.
Handling and Storage
Shop the product in a dry, covered area. Maintain bags secured until usage to prevent moisture absorption. Use proper dirt control actions during handling– put on masks and eye security. Because of its great nature, it can become airborne conveniently. Avoid strong air currents near open containers.
Packaging Choices
We supply undensified microsilica fume in 20 kg multi-wall paper bags with moisture obstacle linings. Bulk deliveries are readily available in 1-ton very sacks or pneumatic tankers for large-volume consumers. All product packaging satisfies global safety and security and transport standards.

Applications of Undensified Microsilica Fume Silica Factory
Applications of Undensified Microsilica Fume
More Powerful Concrete for Tough Jobs
Undensified microsilica fume is a great powder used to make concrete a lot stronger. When blended into concrete, it fills up little gaps between cement particles. This makes the final product denser and less most likely to allow water or chemicals go through. Contractors utilize it in bridges, tunnels, and parking structures where long life and high toughness issue.
Better Performance in Harsh Conditions
Concrete with undensified microsilica fume resists damages from salt, acids, and various other extreme materials. That’s why it functions well near seas or on roads treated with de-icing salts. It likewise handles freeze-thaw cycles better than routine concrete. Tasks in cold environments often count on this additive to prevent splitting and surface wear.
Secret Ingredient in High-End Building
Many contemporary buildings require concrete that sets quickly and gains toughness promptly. Including undensified microsilica fume helps accomplish this without extra steps. Specialists use it when time is limited however high quality can not go down. It also enhances just how well steel bars bond with concrete, which increases safety in earthquake-prone areas.
Useful in Specialized Products
Past conventional building and construction, this product goes into precast concrete parts, pipelines, and also some kinds of floor tiles. Its fine texture helps produce smooth surface areas and sharp sides. Producers likewise blend it into repair service mortars since it sticks well and lasts long under tension.
Why Select Our Factory?
We create undensified microsilica fume with constant quality and pureness. Our item satisfies global requirements and ships reliably to support your timetable. Whether you work on large facilities or specialty products, our microsilica fume delivers genuine results on site.
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 Undensified Microsilica Fume Silica Factory
Frequently Asked Questions About Undensified Microsilica Fume
What is undensified microsilica fume?
Undensified microsilica fume is a very fine powder made during silicon or ferrosilicon production. It comes out as a byproduct from electric arc furnaces. The material is light and fluffy, with particles much smaller than cement. This gives it strong pozzolanic properties, which help improve concrete performance.
How does it differ from densified silica fume?
The main difference is density. Undensified microsilica fume stays in its natural, low-density state. Densified silica fume is compressed into pellets for easier handling. Undensified form mixes more evenly in concrete but needs special equipment to handle dust and flow.
Why use undensified microsilica fume in concrete?
It makes concrete stronger and more durable. The tiny particles fill gaps between cement grains. This reduces porosity and blocks water or chloride entry. As a result, the final product resists cracking, corrosion, and chemical damage better than regular concrete.
Is undensified microsilica fume safe to handle?
Yes, but you must follow safety rules. Wear proper masks, gloves, and eye protection. The fine powder can irritate skin, eyes, and lungs if inhaled. Store it in dry, sealed containers to avoid moisture and dust release during use.
How should it be stored and transported?
Keep it in dry, covered areas away from rain or humidity. Use sealed silos or big bags with liners to prevent clumping. During transport, secure packaging tightly to stop leaks. Because it’s light and dusty, pneumatic tankers or closed systems work best for moving large amounts.
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