AEROSIL 200 is a hydrophilic fumed silica with a specific surface area of 200m2/g

Characteristic physico-chemical data

Properties and test methods
Specific surface area (BET) m2/g 175-225
pH value in 4% dispersion 3.7 – 4.5
Loss on drying* 2 hours at 105 C % <1,5
Tamped density* g/l approx. 50
SiO2 Content based on ignited material % >99.8

*ex plant

the data represents typical values(no product specifications)

Registrations (substance or product components)


CAS-No. 112 945-52-5 7631-86-9
REACH (Europe) registered
TSCA (USA) registered
DSL (Canada) registered
AICS (Australia) registered
ENCS (Japan) registered
IECSC (China) registered
KECI (Korea) registered

Application and properties


  • Paints and coatings
  • Unsaturated polyester resins, laminating resins and gel coats
  • HTV and RTV – 2K – silicone rubber
  • Adhesives and sealants
  • Printing inks
  • Cable compounds and cable gels
  • Plant protection


  • Rheology and thixotrophy control of liquid systems, binders, polymers, etc.
  • Used as anti-settling, thickening and anti-sagging agent
  • Reinforcement of HTV and RTV -2K silicone rubber
  • Improvement of free flow and anticaking characteristics of powders

Safety and Handling

A saftey data sheet will be provided with your first delivery and with subsequent revisions.

Packaging and Storage

AEROSIL 200 is supplied in multiple layer 10 kg bags. We recommend to store the product in closed containers under dry conditions and to protect the material from volatile substances. AEROSIL 200 should be used within 2 years after production.