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FINETAL® Chemical-Method Spherical Silica
HomeProducts and SolutionsFINETAL® Chemical-Method Spherical Silica

FINETAL® Chemical-Method Spherical Silica

Sol-Gel Process · SiO₂ Purity >99.9% · Particle Size Ranging from Nano, Submicron to Micron
Request Sample Testing Service Download Product Brochure
301373 Shenzhen Stock Exchange ChiNext National-level"Little Giant" Enterprise 21Invention Patents

FINETAL®

FINETAL® Product Features

FINETAL® is a spherical silica product series developed by Lingwe Technology based on its proprietary sol-gel (chemical method) process.
  • High Purity
    SiO₂ > 99.9%
    extremely low metal element content
  • High Sphericity
    > 95%, smooth and dense sphere surface,
    solid and non-porous
  • Full Particle Size Coverage
    ranging from nano, submicron to micron, with uniform particle size and narrow distribution
  • Amorphous, Low Alpha Radiation
    amorphous structure, alpha-ray element content below the PPB level
The properties of spherical silica make it a versatile, high-performance industrial material applicable to electronic circuit substrates, electronic packaging, electronic adhesives, semiconductor industry (CCL Prepreg use, EMC/GMC/LMC use), film fibers, polishing, specialty ceramics, and coatings and inks, among other fields.

FINETAL®

Chemical Method VS Flame Fusion Method

  • Chemical Method (Sol-Gel)
    Recommend
    Purity
    SiO₂ > 99.9%,synthesized from high-purity chemical silicon source, extremely low metal element content
    Particle Size Control
    Nano, submicron to micron level,narrow distribution, good consistency
    Sphericity
    > 95%,no agglomeration, smooth and dense sphere surface, solid and non-porous
    Alpha Radiation
    The chemical method raw material route naturally avoids radioactive elements such as uranium and thorium associated in natural ores, with alpha-ray element content significantly lower than flame fusion method products
    Raw Material Autonomy
    Full chain independently controllable from high-purity chemical silicon source to finished product
  • Fused (Flame) / VMC (Blast)
    Traditional
    Purity
    Affected by the types and distribution of associated impurities in natural mineral raw materials, with risks in controlling specific metal elements (e.g., alpha-ray sources such as uranium and thorium)
    Particle Size Control
    Predominantly micron level, wide distribution, nano and submicron products difficult to produce stably
    Sphericity
    Due to rapid cooling after high-temperature melting, particles agglomerate with microcracks or micropore defects on the surface, affecting the consistency of dielectric properties
    Alpha Radiation
    Radioactive elements associated in natural minerals are difficult to completely remove, resulting in relatively high alpha-ray element content
    Raw Material Autonomy
    Dependent on external mineral raw material supply, fluctuations in raw material quality affect product consistency

FINETAL®

Sol-Gel Manufacturing Process

Si(RO)4 + 2H2OSiO2 + 4ROH
  • SiliconeStep 01
  • HydrolysisStep 02
  • NucleationStep 03
  • Particle GrowthStep 04
  • Spherical SilicaStep 05
FINETAL® spherical silica is produced by strictly controlling raw materials and processing. Using organosilicon as the raw material, it undergoes hydrolysis → nucleation → growth into spherical particles. The sol-gel method constructs the spherical structure under mild conditions, avoiding surface defects and crystal phase transitions caused by high temperatures, ensuring morphological consistency and performance stability for every spherical silica particle.

FINETAL®

Particle Size Distribution Curve

The chemical method yields narrow particle size distribution with high consistency. Below is the particle size distribution chart for representative grades, with the x-axis showing logarithmic particle size (0.01–10 μm) and the y-axis showing volume percentage.
Particle Size Distribution Curve

FINETAL®

Spherical Particle Microstructure

Under scanning electron microscopy (SEM), FINETAL® particles exhibit high sphericity, smooth surfaces, no agglomeration, and a dense, solid morphology.
  • 20nm
  • 100nm
  • 500nm
  • 1μm
  • 2μm
  • 3μm
Do you need recommendations for model selection or specialized modification solutions?
Our technical team will provide selection recommendations, customized surface modification solutions, and TDS based on your application scenarios.
Contact Us

FINETAL®

Segment Leader · Mid-to-High-End Domestic Replacement

One of the few listed companies in China with industrialization capability for chemical-method spherical silica
  • Stock Code
    301373
    Listed on ChiNext, Shenzhen Stock Exchange
  • Technology Patents
    64+
    Cumulative Number of Granted Patents
  • Corporate Honors
    National-Level
    "Little Giant" Enterprise/High-Tech Enterprise
  • R&D Personnel
    5%+
    of Revenue (FY2025)
  • R&D Personnel
    20%+
    of Total Headcount (FY2025)
  • Corporate Honors
    Single Product Champion
    Manufacturing Enterprise in Guangdong/Hunan Province
Lingwe Technology (Stock Code: 301373) has focused on the R&D and industrialization of nano-materials for over 20 years, and is a leading enterprise in China's matting silica sector. In January 2026, Lingwe Technology completed the acquisition of a 70% equity stake in Jiangsu Huimai, officially entering the chemical-method spherical silica powder track and becoming one of the listed companies in China with industrialization capability for chemically synthesized spherical silica.

FINETAL®

Key Raw Material for the Next-Generation Electronic Information Industry

Our technical team will provide grade selection recommendations, customized surface modification solutions, and TDS based on your application scenarios.
Request Sample Testing Service Download Product Brochure
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