Bentogel is a superior grade bentonite confirming to API Specification 13A for drilling. Also, for precision casting, it provides excellent compromise between high Green Strength, Permeability and surface finish. With liquid limit of above 300%, it is an ideal application in civil and construction works for seepage control in dams, canals and landfills. Higel Optimum is a sodium bentonite of API standard specification except filtrate loss value. It is used for all drill holes where low filtrate properties of bentonite are of lesser importance. It is ideally suited for automotive component casting foundries. Bentobest is a western type, high swelling sodium bentonite for foundry use. Bentobest is most suitable for precision casting of steel and different alloys. It gives higher green, dry and baked strengths to mould as compared to ordinary calcium bentonite. HIGEL is a sodium bentonite for use in a formulation of foundry moldings for manufacture of castings by grey iron and steel foundries. HIGEL has very quick hydration time and gives good green strength to the molds while allowing easy de-molding. Bentop is a southern type calcium bentonite of high purity. Bentop gives high green strength to mould and low dry and baked strength as compared to Bentobest.