Sintasol BS is a semi-synthetic biologically stable emulsifying agent. Mixed with water, it gives a stable semi-transparent emulsion used at various metal processing operations. Due to its specific composition, Sintasol BS has a wide application range. Its aqueous emulsion provides efficient cooling and lubrication at machining operations. Applicable dilution rates are determined depending on the machining operations required. Dilution rate used at grinding, turning and milling operations shall be about 3.5-5%. Dilution rate used at thread cutting and thread forming shall be from 7-10%.