Your Leading Fused Silica Powder Supplier
Anhui Jingde County Chengxin Silicon Powder Factory. is a specialized producer of high‑performance silica powders.
The factory uses locally sourced quartz, advanced equipment, and a structured production system to supply both domestic and overseas buyers.
The factory uses local quartz raw materials, is equipped with advanced equipment, and adopts a standardized production system, making it a trustworthy supplier of high-quality silica powder for customers in the construction, electronics, and chemical industries.
With around 21 production and related staff, including engineers, the team focuses on consistent quality, timely communication, and long‑term customer support.
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![Fused Quartz Powder]()
Fused Quartz PowderFused Quartz Powder is an amorphous silica powder produced from high-purity quartz sand through high-temperature melting, controlled cooling and solidification, crushing, grinding, and precise -
![Inert Fused Silica Powder]()
Inert Fused Silica PowderInert Fused Silica Powder is produced by melting high-purity quartz sand in an electric arc furnace at temperatures above 2000°C, followed by water quenching, crushing, grinding, and classification -
![Active Fused Silica Powder]()
Active Fused Silica PowderActive Fused silica powder is a high-end derivative obtained by further applying surface activation treatment to the excellent performance of the inert fused silica powder. Its activation process -
![300 Mesh Fused Silica Powder]()
300 Mesh Fused Silica Powder300 mesh fused silica powder combines the excellent bulk properties of fused silica with the good processability and economy brought by the moderate 300 mesh particle size. Its manufacturing process -
![400 Mesh Fused Silica Powder]()
400 Mesh Fused Silica Powder400 mesh fused silica powder (particle size approx. 18-24 microns) further increases the fineness on the basis of the 300 mesh product, thus allowing for a more refined division in performance and -
![600 Mesh Fused Silica Powder]()
600 Mesh Fused Silica Powder600 mesh fused silica powder (particle size approx. 16-18 microns) is a key specification in the fused silica powder series that connects the preceding and the following. It not only retains the -
![800 Mesh Fused Silica Powder]()
800 Mesh Fused Silica Powder800 mesh fused silica powder (particle size approx. 12-16 microns) marks the entry of fused quartz filler into the core field of high-performance electronic applications. The production control of -
![1000 Mesh Fused Silica Powder]()
1000 Mesh Fused Silica Powder1000 mesh fused silica powder (particle size approx. 10-12 microns) has stepped into the category of ultra-fine fused quartz fillers, mainly targeted at the most cutting-edge electronic packaging and -
![1200 Mesh Fused Silica Powder]()
1200 Mesh Fused Silica Powder1200 mesh fused silica powder (particle size approx. 8-10 microns) is a segmented product developed for specific high-end needs, and its technical indicators are often customized according to the -
![1500 Mesh Fused Silica Powder]()
1500 Mesh Fused Silica Powder1500 mesh fused silica powder (particle size approx. 6-7 microns) is a cutting-edge product in fused silica powder technology, and its preparation and application represent the highest level in the -
![2000 Mesh Fused Silica Powder]()
2000 Mesh Fused Silica Powder2000 mesh fused silica powder (particle size approx. 4.5 microns) is the pinnacle of fused quartz powder technology, at the forefront of the transition from laboratory to industrial application. Its
Why Choose Us?
Rich Experience
Founded in 2000, we have operated continuously for over two decades, growing from a small workshop into a solid powder‑industry enterprise. This long track record signals stability and practical know‑how that overseas buyers can depend on.
Production Capacity
Our total annual production capacity reaches about 20,000 metric tons, with yearly sales around 50 million RMB. That scale supports substantial order volumes while still allowing focused control over production and quality.
Advanced Equipment
We run six semi‑automatic production lines and two laboratories, equipped for both milling and detailed quality checks using tools such as ball mills, screening machines, vibration testers, conductivity meters, and viscometers.
Broad Market
Our silica powder sells well at home and abroad, with exports to Southeast Asia, the Middle East and other regions, and strong customer feedback reported. This international footprint shows practical export experience, which is reassuring for new buyers in Europe or North America.
Types of Fused Silica Powder
1500 Mesh Fused Silica Powder
1500 Mesh fused silica powder (particle size approx. 6-7 microns) is a cutting-edge product in fused silica powder technology, and its preparation and application represent the highest level in the industry.
600 Mesh Fused Silica Powder
600 Mesh fused silica powder (particle size approx. 16-18 microns) is a key specification in the fused silica powder series that connects the preceding and the following.
Active Fused Silica Powder
Active Fused silica powder is a high-end derivative obtained by further applying surface activation treatment to the excellent performance of the inert fused silica powder.
Specifications of Fused Silica Powder
|
Specification |
Range |
|
Product Name |
Fused Silica Powder |
|
SiO₂ Purity |
99.0% – 99.95% |
|
Appearance |
White amorphous powder |
|
True Density |
2.20 – 2.21 g/cm³ |
|
Bulk Density |
1.10 – 1.25 g/cm³ |
|
Mohs Hardness |
6 – 7 |
|
Thermal Expansion Coefficient |
~0.5 × 10⁻⁶ / K |
|
Thermal Conductivity |
~1.1 W/(m·K) |
|
Particle Size (D50) |
0.5 µm – 50 µm (customizable) |
|
Particle Size Distribution |
Narrow, controlled PSD or customized multimodal distribution |
|
Sieve Residue |
≤ 0.05% |
|
Impurities |
Very low ppm level; Na⁺, Fe³⁺, Al³⁺ etc. strictly controlled |
|
Loss on Ignition |
≤ 0.1% |
|
PH (aqueous suspension) |
6 – 8 |
|
Surface Treatment (Optional) |
Hydrophilic / hydrophobic / special functional coating |
|
Customizable Options |
Purity level, PSD, mesh size, surface treatment, impurity limits |
|
Main Applications |
High-temperature ceramics, precision casting, quartz glass, electronics packaging, semiconductor materials, optical components, high-performance coatings, composite fillers |
It is hard and robust, and not too difficult to machine and polish.
The high glass transition temperature makes it more difficult to melt than other optical glasses, but it also implies that relatively high operating temperatures are possible. However, fused silica may exhibit devitrification above 1100 °C, particularly under the influence of certain trace impurities, and this would spoil the optical properties.
The thermal expansion coefficient is very low — about 0.5 · 10−6 K−1. This is several times lower than for typical glasses.
The high thermal shock resistance is a result of the low thermal expansion; there is only moderate mechanical stress even when high temperature gradients occur due to rapid cooling.
Silica can be chemically very pure.
Silica is chemically quite inert, with the exception of hydrofluoric acid and strongly alkaline solutions. At elevated temperatures, it is also somewhat soluble in water.
The transparency region is quite wide (about 0.18 μm to 3 μm), allowing the use of fused silica not only throughout the complete visible spectral region, but also in the ultraviolet and infrared.
As an amorphous material, fused silica is optically isotropic — in contrast to crystalline quartz.
Storage Precautions for Fused Silica Powder
Store In A Cool, Dry, And Well-ventilated Area: Metallic silicon powder should be stored in an area that is free from any potential ignition sources, such as open flames, sparks, or heat sources. The storage area should be well-ventilated to prevent the buildup of flammable vapors.
Use Appropriate Containers: Metallic silicon powder should be stored in appropriate containers, such as metal drums or plastic containers, that are sealed tightly to prevent any air or moisture from getting inside. The containers should be labeled with the proper identification information, including the product name, hazard warning, and storage instructions.
Keep Away From Incompatible Materials: Metallic silicon powder should be stored separately from other incompatible materials, such as oxidizers or strong acids, to prevent any potential reactions that may result in fire or explosion.
Handle With Care: When handling metallic silicon powder, avoid any physical impact or friction, which may cause sparks or generate heat. It is recommended to use grounding straps and other equipment to prevent the buildup of static electricity during handling and transfer.
Follow Proper Disposal Procedures: Any waste or excess metallic silicon powder should be disposed of safely and appropriately, following all local regulations and guidelines.
Customization Options
Particle size
Multiple options or customizable
Shape
Multiple options or customizable
Packaging
Customizable
MOQ
Flexible customization available
Our Certificate
Quality Management System Certification Certificate, management system complies with GB/T 19001-2008 / ISO 9001:2008 standard requirements.
Our Service Advantages
Pre-sale service
Inquiry handling, sample sending, price negotiation.
Sales service
Conduct product transactions according to the responsibilities and obligations stipulated in the contract between Party A and Party B.
The products undergo rigorous factory inspections, and quality management follows industry standards.
After-sales
Communicate with customers promptly and regularly to understand their satisfaction with product quality.
Visit all customers, large and small, once a year.
Payment Terms
T.T with 30% downpayment, 70%before shipment.
Paypal or West Union also accept.
Packaging & Shipping
FAQ
We're well-known as one of the leading fused silica powder manufacturers and suppliers in China. Welcome to buy high quality fused silica powder made in China here and get free sample from our factory. For price consultation, contact us.
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