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

Evonik AEROXIDE R805 Fumed Silica

Evonik AEROXIDE R805 Fumed Silica is a hydrophobic, pyrogenically produced silica with high surface area and excellent reinforcing capability. Designed for silicone rubber, coatings, and adhesives, it enhances viscosity control, thixotropy, and mechanical strength while resisting moisture absorption. Its consistent particle size and low abrasivity ensure reliable processing and superior performance in demanding applications.
  • evonik aeroxide r805 fumed silica_359ac353
  • evonik aeroxide r805 fumed silica_359ac353

Features Of Evonik AEROXIDE R805 Fumed Silica

  1. Highly pure, pyrogenic silica with controlled surface chemistry for consistent performance in demanding formulations.

  2. Optimized for rheology control and anti-settling functionality in low-viscosity liquid systems.

  3. Excellent dispersion stability in polar and non-polar media due to tailored surface treatment.

  4. Low abrasivity and high transparency retention—ideal for clear coatings and optical-grade applications.

  5. Consistent batch-to-batch quality supported by Evonik’s certified production and strict QC protocols.

Typical Applications Of Evonik AEROXIDE R805 Fumed Silica

  1. UV-curable and electron-beam (EB) curable coatings and inks.

  2. High-gloss automotive clearcoats and industrial topcoats.

  3. Optical adhesives and transparent potting compounds.

  4. Flame-retardant cable jacketing compounds and polymer composites.

  5. High-performance silicone elastomers requiring thixotropic control without haze.

Specifications Of Evonik AEROXIDE R805 Fumed Silica

Chemical TypePyrogenic (fumed) silicon dioxide
Product FormFree-flowing white powder
AppearanceWhite, amorphous, odorless powder
Primary ApplicationsRheology modifier, anti-settling agent, reinforcement filler
Key FeaturesSurface-treated, hydrophobic, low oil absorption
BenefitsEnhanced storage stability, improved sag resistance, clarity preservation
Storage ConditionsStore in dry, cool conditions; protect from moisture and contamination
Handling RecommendationUse appropriate dust control measures (e.g., local exhaust ventilation)


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