Bentonite powder is a type of clay that has various uses in different industries, such as drilling, civil engineering, cosmetics, and agriculture. It is composed mainly of montmorillonite, a clay mineral that can swell and adsorb water, oil, and other substances.
Bentonite clay is a natural clay with a fine, soft texture. When in contact with water it expands up to Twenty to Forty times its dry volume, It forms a paste when mixed with water’ due to higher surface area -making bentonite a valuable adsorbent. This gives the clay a cohesiveness that makes it greatly increases the plasticity of clay bodies and decreases settling in glazes, making both easier to work with for most applications.

clay may be referred as Calcium Bentonite or Sodium Bentonite, the two varieties exhibiting different properties and thus, uses. There are three main characteristics of Bentonite that make it commercially useful. They include Thixotropy, Swelling, and Adsorption.