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Quick Details

  • Classification: Silicon Dioxide
  • CAS No.: 7631-86-9
  • Other Names: Aerosil 300
  • Place of Origin: United States
  • Purity: >99.8%

Packaging & Delivery

Packaging Details Packaged in 250 lb FIBCs. One time availability.
Delivery Time Immediate shipment

Specifications

Approximately 32,250 lbs available.
Surface area: 300 +/- 30 m2/g
Tapped density: 90 g/l
SiO2 content: > 99.8%

AEROSIL® 300
Hydrophilic Fumed Silica
AEROSIL® 300 is a hydrophilic fumed silica with a specific surface area of 300 m2/g.
Applications and Properties
Applications
l Paints and coatings
l HTV - and liquid silicone rubber
(LSR)
l Cable compounds and unsaturated
polyester resins
l Adhesives and sealants
l Printing inks
Properties
l Rheology and thixotropy control of
liquids, binders, polymers, etc.
l Optimal dispersion yields best
results in pronounced thickening
and thixotropy
l Reinforcement of HTV- and liquid
silicone rubber (LSR) at a high
transparency level.
l Excellent transparency in
unsaturated polyester resins.
Physico-chemical Data
Properties Unit Typical Value
Specific surface area (BET) m2/g 300 ± 30
Average primary particle size nm 7
Tapped density (approx. value)*
acc. to DIN EN ISO 787/11, Aug. 1983
g/l approx. 50
Moisture*
2 hours at 105°C
wt.% < 1.5
Ignition loss
2 hours at 1000°C based on material
dried for 2 hours at 105°C
wt.% < 2.0
pH
in 4% dispersion
3.7 - 4.7
SiO2 - content
based on ignited material
wt.% > 99.8
* ex plant
The data represents typical values and not production parameters.

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