NATURAL GEL is a 200-mesh bentonite that contains no polymer additions, meeting API Specification 13A, Section 10. NATURAL GEL provides viscosity, gelling and filtration control properties to most fresh water-based drilling fluids where an unaltered high quality bentonite is required. Ideal for use as an oilwell cementing extender and binder where additives may affect chemical analysis. NATURAL GEL is also used in hydraulic-barrier applications (pond-sealing, slurry trenching, caissons, etc.) and in monitoring wells.