Product Name: BENTOIL 500

Product Information: BENTOIL 500 Organophilic Bentonite


BENTOIL 500 organophilic bentonite is a viscosifier and gelling agent that can be used in all oil based drilling fluids, and is especially effective in synthetic oils. BENTOIL 500 is an amine treated Wyoming bentonite designed to yield optimal performance in all oil based drilling fluids to increase carrying capacity and suspension properties, providing cost effective removal of cuttings.


BENTOIL 500 was developed as a viscosifier and gelling agent for use in synthetic oils. BENTOIL 500 can be used in low concentrations in diesel oil based drilling fluids. BENTOIL 500 is stable at temperatures up to 350 F.


Cost effectively builds viscosity and yield point in low toxicity and synthetic oils.

• Provides approximately twice the yield point compared to other organophilic bentonites in synthetic oil based drilling fluid systems.

• Improves hole cleaning because of high cuttings capacity.

• Aids in filter cake formation resulting in improved filtration control.

• Unique energy intensive batch processing of BENTOIL 500 ensures consistent product quality and cost effective performance.


Color: Light tan

Moisture content: 4%, maximum

Form: Free flowing powder

Specific gravity: 1.7 +/- 1.0

Fineness: 75%, minimum, passing 200-mesh


25 kg or 50 lb multi-layer paper sacks