API 13 A SEC - 9 is a natural sodium bentonite specially designed for the production of fluids for oil water drilling. It is processed from selected ore with high montmorillonite content and is used as viscosities and fluid loss reduction agent.
API 13 A SEC - 11 is pure sodium based Bentonite specially treated to meet OCMA DFCP - 4 specification. It is ideal for oil well drilling, pilling and civil engineering application. It act as viscosities ad highly effective in fresh water.
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