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

Evonik AEROSIL R202 Hydrophobic Fumed Silica

Evonik AEROSIL R202 is a hydrophobic fumed silica imported from Germany, modified with polydimethylsiloxane. It is designed for polar resin systems, providing excellent thickening, thixotropy and anti-settling properties for adhesives, sealants and cable gels.

Features Of Evonik AEROSIL R202 Hydrophobic Fumed Silica

  1. Excellent compatibility with polar systems – Suitable for epoxy, polyurethane, vinyl resins and other complex polar liquids

  2. High-efficiency thixotropy and thickening – Provides stable thixotropic and thickening effects to improve construction performance

  3. Outstanding anti-settling for fillers – Effectively prevents high-density fillers from settling and keeps the system uniform

  4. Superior hydrophobicity – Fully modified surface, water and moisture resistant, enhancing product durability

  5. Special additive for cable gels – Optimizes consistency and thixotropy to ensure cable sealing and protection

Typical Applications Of Evonik AEROSIL R202 Hydrophobic Fumed Silica

  1. Adhesives and sealants

  2. Epoxy resins, vinyl resins and gel coats

  3. Optical fiber and cable gels

  4. High filler content resin systems

  5. Industrial potting and insulation materials

Specifications Of Evonik AEROSIL R202 Hydrophobic Fumed Silica

BrandEvonik
Product SeriesAEROSIL Hydrophobic Fumed Silica
Product TypeHydrophobic Fumed Silica (White Carbon Black)
Surface TreatmentPolydimethylsiloxane
BET Surface Area100±25 m²/g
Average Primary Particle Size14 nm
Bulk Densityapprox. 50 g/L
Carbon Content3.5–5.0 wt%
Moisture Content≤0.5 wt%
Loss on Ignition4.0–4.6 wt%
pH Value4.0–6.0


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