Winnofil S - Description

Winnofil S is an ultrafine surface treated precipitated calcium carbonate. It is a very fine, white and odourless powder with unique crystal size and shape. Winnofil S is a highly effective flow aid and limits compaction of problem powders. Winnofil S is widely used in PVC applications to improve impact and processing properties.

Winnofil S

More information about Winnofil S


  • Physical Form: Powder
  • Surface Area (BET) (m2/g): 15-24
  • Density (g/cm3): 2.71
  • Free Flowing Density (g/L): 430
  • Refractive Index: 1.658
  • Loss on Drying (g/kg): ? 6
  • Coating Content (g/kg): 23-31
  • Crystal Structure: Calcite Rhombohedral
  • Crystal Shape: Cubic

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