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

Evonik AEROSIL 380 Hydrophilic Fumed Silica

Evonik AEROSIL 380 is an ultra-high specific surface area hydrophilic fumed silica produced by German gas-phase process. Designed for rheology control and strong reinforcement in high-end systems, it has top-level thickening thixotropy, high transparency and excellent processability, widely suitable for silicone rubber, coatings, resins and other high-performance materials.


Features Of Evonik AEROSIL 380 Hydrophilic Fumed Silica

  1. Ultra-high specific surface area - With industry-leading specific surface area, thickening and thixotropic effects reach the best level in the same category

  2. Powerful rheology control - Precisely controls rheology of liquid systems, efficiently anti-sagging and anti-settling, improving construction stability

  3. Excellent reinforcement performance - Provides strong reinforcement in silicone rubber systems, significantly improving mechanical strength and service life

  4. High light transmittance & clarity - Endows unsaturated polyester resins with excellent transparency without affecting appearance and optical quality

  5. Good processing compatibility - Easy to disperse and add, improves system stability, suitable for processing scenarios of various polymer materials

Typical Applications Of Evonik AEROSIL 380 Hydrophilic Fumed Silica

  1. Paints and coatings systems - Regulates rheology, anti-settling and anti-sagging, improving coating uniformity and surface texture

  2. HTV/LSR silicone rubber - Efficient reinforcement, enhances mechanical properties and ensures high transparency of products

  3. Cable materials and unsaturated polyester resins - Improves transparency and structural strength, optimizes insulation and weather resistance

  4. Adhesives and sealants - Adjusts thixotropy, prevents sagging, enhances adhesion and construction compatibility

  5. Printing ink systems - Optimizes rheology and dispersion, improves printing fluency and color presentation effect

Specifications Of Evonik AEROSIL 380 Hydrophilic Fumed Silica

BrandEvonik
Product SeriesAEROSIL Hydrophilic Fumed Silica
Product TypeHydrophilic Fumed Silica
BET Specific Surface Area380±30 m²/g
Average Primary Particle SizeApprox. 7 nm
Loss on Drying≤2.0 %
pH Value3.7–4.5
SiO₂ Content≥99.8 %
Packing DensityApprox. 50 g/L



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