Additives for ceramic bodies and glazes - from Rockwood 

manufactured by BYK



Under the brand names Laponite®, Bentolite® and Optigel® a full range of easy-dispersible high quality smectite products is available. These products are used as rheological additives and mineral binders e.g. in the ceramic industry. The outstanding features compared to conventional bentonites are the following:

By selective mining of white, low iron bentonites for the production of Optigel® and Bentolite®, a colouring of the final product is reduced to a minimum. Degree of whiteness: up to 82.


Laponite®-grades are synthetic hectorite products with exactly controlled composition and free bound, oxide, or metallic iron. On firing, Laponite® will be converted to high brightness oxides and give less glaze defects than natural smectites.


Optigel® and Laponite® products provide stable suspending properties in aqueous systems, even during long storage times.


All information in this publication is in accordance with the presence experience and knowledge. However, since we have no influence on the way in which the products are treated and used, we can not take any responsibility in this respect.


The user must assume responsibility himself for checking wether the products are suitable for the purpose and use proposed by him. All existing proprietary rights, laws and regualtions shall be observed. The information in this publication can not considerated as a guaranty. Due to the technical conditions in the production, the above mentioned information may vary.

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