Aerosil® COK 84

Technical Documents

AEROSIL® COK 84 is a mixture of AEROSIL® 200 and highly dispersed fumed aluminum oxide in the ratio of 5:1. Used in adhesives.

Details

CAS

945-52-5 112 ;1344-28-1

Product Type

Additive > Fillers > Silicas
Additive > Rheology modifiers thickeners

Applications

Coatings > Waterbase
Coatings
Adhesives

Producer

Evonik

Supplier

Evonik Iran > Silica

Chemical Composition

Hydrophilic Fumed Mixed Oxide

Advantages
  • Rheology control in aqueous, highly polar liquids and binder systems
  • Pseudo plasticity and thixotropy
Other Applications

Coatings paste
Waterbased coatings
Aqueous coatings
adhesives

Storage

We recommend to store the product in closed containers under dry conditions and to protect the material from volatile substances. AEROSIL® COK 84 should be used within 2 years after production.

Technical data

Quantity Value Unit Comment
Physical Properties
Tap density 0.05 g/cm3
Surface Area 155 - 215 m²/g BET
SiO2 82 - 86 % based on ignited material
pH 3.6 - 4.3 in 4% dispersion
Humidity <1.5 %
Al2O3 14 - 18 %
Thermal Properties
Loss on ignition <1 %
Chemical Properties
Loss on drying <1.5 % 2hours at 105°C