Description

Wollastocoat grades of wollastonite are a fine particle size, low aspect ratio calcium silicate which have been chemically modified. These grades offer a variety of modifications from organo-silanes to wetting agents for improved mechanical properties, processing and throughput rates. Optimum properties are created by properly matching the correct chemical modification to the polymer matrix at the right concentration level.

  • High brightness
  • Low moisture and oil absorption
  • Low water solubility
  • Basicity
  • Low volatile content
  • High melting point
  • Acicular crystal structure
  • Relatively high hardness (4.5 on Mohs� scale)
  • High thermal stability
  • Chemically inert
  • Low abrasiveness

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