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Metasan products

Aerosil® 200

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Technical information

Description

Hydrophilic fumed silica. Used in adhesives and sealants.

Chemical nature

Hydrophilic Fumed Silica

Applications

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, Used as anti-settling, thickening and anti-sagging agent

Advantages

Rheology and thixotropy control of liquid systems, binders, polymers, etc, Reinforcement of HTV- and RTV-2K silicone rubber, Improvement of free flow and anticaking characteristics of powders

Storage

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.

Chemical Properties

pH

3.7 - 4.5 · in 4% dispersion

SiO2 (%)

>99 · based on ignited material

Loss on drying (%)

<1.5 · 2hours at 105°C

(LOI) Loss on ignition (%)

<1.0 · 2hours at 1000°C based on material dried for 2 hours at 105°

Humidity content (%)

<1.5

Physical Properties

Surface Area (m2/g)

175 - 225 · BET

Tap density (g/cm3)

0.05

(nano) Particle size (nm)

12 · Average