PURPOSE: To obtain the title lubricant having excellent dragging properties even at high temperature, excellent lubricating properties, improved quality on the surface of product and molding properties, providing improved operation environment by dispersing specific fatty acid soap and mica powder having specific particle size into water.

CONSTITUTION: (A) 2.5-20% fatty acid soap comprising 12-18C alkyl group, having 20% water solubility at <50°C temperature and (B) 5-20% mica powder having ≤80μm (preferably ≥5μm) particle size are dispersed into water to give the aimed lubricant. Powder of tetrafluoroethylene resin, talc, etc., may be effectively present together with the component B.