Almaredge BI
General purpose soluble metalworking fluid Description Castrol Almaredge™ BI is a general purpose soluble metalworking fluid which is chlorine and boron-free. It contains a unique additive package that provides good lubrication properties and performs well in a wide water range. Almaredge BI can be used in single sump machines as well large systems. Application Almaredge BI is a versatile product recommended for general machining on low-medium alloy steel and aluminium alloys.