Spherical Silica Powder (Electronic Grade)

• Customization: Available
• Certification: ISO
• Application: Rubber, Plastic, Chemical, Construction, Metallurgy, Ceramic, Casting, Glass
• Model NO.: SQ
• Transport Package: Paper Bag, Big Bag, Pallet
• Specification: SiO2>99.6%
• Trademark: ST
• Origin: Lianyungang, China
• HS Code: 2811229000
• Production Capacity: 50000pieces/Year

Product Description

1. Key Parameters

   Parameter	Specification
   Purity	≥99.6%
   Particle Size Distribution	D50 0.5μm-50μm (Customizable)
   Sphericity	≥97%
   Specific Surface Area	3-15 m²/g (Adjustable by particle size)
   Dielectric Constant	3.8-4.2 (1MHz)
   Density	2.2-2.4 g/cm³
   Radioactivity	Complies with GB 6566-2010 Standard

   
   Product Features
   
    Ultra-High Purity: Purity >99.6%, heavy metal content <5ppm, suitable for semiconductor and IC packaging
    Perfect Sphericity: Sphericity ≥97%, excellent flowability, reduces internal stress in materials
    Controllable Particle Size: Strictly classified by laser particle size analyzer, customizable in 0.5-50μm range
    Low Alpha Radiation: Uranium & thorium content <0.01ppb, ideal for high-end electronic components
    Surface Modification: Optional silane coupling agent treatment (KH-550/KH-560)

   
   Typical Applications
   
   ▸ Semiconductor Packaging: Epoxy molding compound (EMC) filler, chip underfill
   ▸ Electronic Circuits: High-frequency copper clad laminate (CCL), PCB ink, thermal conductive adhesive
   ▸ Optical Materials: LED encapsulants, optical lens modifiers
   ▸ 5G Materials: Millimeter-wave transparent materials, antenna substrates
   ▸ New Energy: Lithium battery separator coatings, photovoltaic conductive adhesives

   
   Technical Advantages
   
    Sphericalization Process: Plasma flame melting technology, no sharp edges or defects
    Classification System: Multi-stage air classification + centrifugal grading for narrow distribution
    Clean Production: Dust-free workshop, avoids metal contamination
    Testing Capabilities: Equipped with Malvern laser particle size analyzer, ICP-MS purity testing

   
   Packaging & Shipping
   
    Standard Packaging: 25kg/bag (Customizable)

   Why Choose Us?
   
   ▪ Technical collaboration with research institutions, holding multiple silica powder patents
   ▪ Monthly production capacity of 200 tons, supports small-batch sampling (500g free sample available)
   ▪ 24-hour technical support, providing material application solutions

Company Information:

Jiangsu Shengtian New Materials Co., Ltd. has a technical research and development team focusing on ultra-fine powder materials, and has strong strength in the research and development and production of ultra-fine functional materials, composite materials and related applications, and has become a more influential high-tech enterprise in the ultra-fine functional powder industry.
The company's products include crystalline silicon powder, molten silicon powder, soft composite silicon powder, spherical silicon powder, aluminum oxide powder, ceramic powder, glass powder and other ten categories, nearly 100 kinds of different specifications of products, and has a strong modification, compounding and other follow-up deep processing technology and capabilities. The products are processed by special technology, the production technology is leading and innovative, and the introduction of international technical standards for similar products, widely used in electronic packaging, copper clad plate, ink coating, adhesive, ceramics, precision casting, glass fiber, plastic rubber and other industries, giving its functionality while helping customers reduce costs. And provide the overall application of technology solutions.
The company has more than 20 different types of production lines, more than 100 sets of domestic advanced equipment, with an annual output of 50,000 tons. The company adopts professional production and testing equipment and formulates strict production quality control system to conduct all-round control of product quality. All products of the company have passed SGS environmental protection testing, in line with the EU ROHS green environmental protection standards. The company took the lead in the silicon powder industry through the ISO9001 quality management system certification and ISO14001 environmental management system certification, has passed the high-tech product identification. The company's products and solutions have been applied to more than 160 enterprises around the world, including more than 80 customers with stable cooperation for more than 10 years.

Workshop:
 

An excellent manufacturing enterprise

The company has 20 patents, the company has passed ISO9001 and ISO14001 certification, and has been recognized as a national high-tech enterprise