Product Properties
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Structure and mineralogical properties

Classic Neuburg Siliceous Earth is a natural combination of corpuscular, crypto-cristalline and amorphous silica and lamellar kaolinite: a loose mixture impossible to separate by physical methods. As a result of natural aging, the silica portion exhibits a round grain shape and consists of aggregated, crypto-cristalline primary particels of about 200 nm diameter which are coated partially opal-like. Such a unique structure is reponsible for a relatively high specific area and oil absorption, which result, besides rheological activity, also in a whole range of application advantages.

  • Quick incorporation
  • No filler agglomeration
  • Minimal sedimentation
  • Excellent dispersion
  • High surface activity
  • Excellent extrusions properties
  • Low compression set in rubber goods
  • Excellent scratch resistance in plastics, paints and varnishes
  

 

Silica (corpuscular),
Neuburg Siliceous Earth (18.000x)

  

Kaolinite (lamellar),
(15.000x)

  

Neuburg Siliceous Earth
(loose structure 10.000x)