Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Evonik AEROSIL 300 Hydrophilic Fumed Silica

Evonik AEROSIL 300 is a high-surface-area hydrophilic fumed silica imported from Germany, manufactured via gas-phase process. Designed for reinforcement and rheology control in high-performance systems, it features excellent thickening, thixotropy, high transparency and electrical insulation, widely used in coatings, silicone rubber, inks and other fields.

Features Of Evonik AEROSIL 300 Hydrophilic Fumed Silica

  1. High-surface-area reinforcement - With a specific surface area of 300±30 m²/g, it provides efficient thickening and thixotropy, enhancing structural viscosity of systems.

  2. Excellent dispersion & transparency - Easy to disperse, maintaining high transparency in silicone rubber and unsaturated polyester resins without affecting appearance.

  3. Good heat resistance & insulation - Excellent heat resistance and good electrical insulation, suitable for strict scenarios like cable materials and HTV silicone rubber.

  4. Optimized powder fluidity - Good fluidity in powder form, easy to add, anti-caking, improving processing convenience.

  5. Multi-system compatibility - Compatible with various systems like coatings, inks, adhesives, meeting diverse performance needs of different industries.

Typical Applications Of Evonik AEROSIL 300 Hydrophilic Fumed Silica

  1. Coatings & inks - Regulate rheology, anti-settling and anti-sagging, improve pigment dispersion stability and paint film texture.

  2. High-temperature vulcanized (HTV) silicone rubber - Efficient reinforcement, enhance mechanical strength while maintaining high transparency and heat resistance.

  3. Cable materials & unsaturated polyester resins - Endow excellent electrical insulation and transparency, ensuring long-term stable use of products.

  4. Adhesives & sealants - Regulate thixotropy, prevent sagging, improve bonding strength and construction reliability.

  5. Printing inks - Optimize thixotropy and thickening effect, enhance printing fluency and uniform color presentation.

Specifications Of Evonik AEROSIL 300 Hydrophilic Fumed Silica

BrandEvonik
Product SeriesAEROSIL Hydrophilic Fumed Silica
Product TypeHydrophilic Fumed Silica (White Carbon Black)
BET Specific Surface Area300±30 m²/g
Average Primary Particle SizeApprox. 12 nm
Bulk DensityApprox. 50 g/L
pH Value (4% Dispersion)3.7-4.7
SiO₂ Content (After Ignition)≥99.8 wt%
Loss on Drying (105℃, 2h)≤1.5 wt%


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