Sprayable Industrial Soft Composite Silica Powder for Electronic Encapsulation

• Customization: Available
• Certification: ISO
• Application: Rubber, Plastic, Chemical, Construction, Metallurgy, Ceramic, Casting, Glass
• Model NO.: SR/SK
• Mohs Hardness: 5
• Transport Package: Paper Bag, Big Bag, Pallet
• Specification: SiO2 60%± 3
• Trademark: ST
• Origin: Lianyungang, China
• HS Code: 2811229000
• Production Capacity: 50000pieces/Year

Product Description

product information:

Product Description
This innovative soft composite silica powder is specifically engineered for electronic encapsulation applications. Utilizing advanced sprayable technology and specialized surface modification, it offers exceptional flowability and uniform dispersion. The material can be directly sprayed onto precision electronic components to form highly reliable insulating protective layers or thermal interfaces, significantly improving encapsulation efficiency and device performance stability.
 

Product Features

 High Sprayability

• Ultra-fine particle size and low viscosity enable compatibility with airless/electrostatic spraying for micron-level uniform coating.

 Flexible Composite Structure

• Organic-inorganic hybrid system provides crack-resistant flexibility to accommodate thermal expansion of components.

 Superior Insulation

• Forms dense protective barriers against moisture, dust and EMI to ensure long-term device reliability.

 Eco-Friendly

• Solvent-free formulation with zero VOC emissions, compliant with RoHS and electronics industry standards.

 Rapid Curing

• Low-temperature curing (80-120°C) reduces energy consumption and prevents thermal damage to sensitive components.

Product Advantages

• Process Innovation: Simplifies traditional encapsulation by enabling direct integration with automated production lines

• Precision Compatibility: Perfectly conforms to complex surfaces of chips, sensors and microcircuits

• Balanced Performance: Optimizes insulation, thermal conductivity and mechanical strength

• Wide Compatibility: Works with epoxy, silicone and polyimide encapsulation matrices
   

Application Fields
 

• Semiconductor: Chip surface insulation, wafer-level packaging

• Consumer Electronics: Mobile device PCB protection, wearable waterproofing

• Automotive Electronics: ECU thermal interfaces, vehicle sensors

• 5G Communications: EMI shielding for high-frequency PCBs, RF thermal management

• New Energy Equipment: PV inverter insulation, battery module protection
   

Basic Parameters
 

Item	Unit	Typical Values
Exterior	/	white powder
Density	kg/m³	2.58 ×10^3
Moh's hardness	/	5
Coefficient of linear expansion	1/k	0.8×10^-6
Pyroconductivity	w/k.m	0.8
Refraction coefficient	/	/

 

1, content: Silica content 60%±%

2,grain fineness distribution:  D50(0.5μm-50μm)       customization

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