Kaolin Zettlitz Ia

Zettlitz Ia is the most renowned and oldest product of the company Sedlecký kaolin a. s. It has been produced since 1892 when the company Zettlitzer Kaolinwerke AG was founded; the present company Sedlecký kaolin a.s. is its successor.

Its main component is mineral kaolinite, whose content reaches up to 90%. Admixtures comprise micaceous minerals and small amounts of quartz.

Major features of kaolin Zettlitz Ia:

relatively high plasticity which enables good workability in raw state
easy deflocculation by available deflocculants (addition of 0.1% Na₂CO₃)
high content of Al₂O₃ and low content of alkalis provides high stability in fire

The original use of the kaolin Zettlitz Ia was in porcelain production. Many producers uses it till today as the main plastic component in bodies for plastic moulding, slip-casting or isostatic pressing of tableware. Good plasticity in raw state and high stability in fire is also employed in the production of ceramic rollers for fast firing kilns. Low content of harmful substances and plasticity play a significant role in the pencil production. This feature is also substantial for use in cosmetics.

Take a look at various application of kaolin Zettlitz Ia