AQUEOUS LUBRICATING COATING AGENT HAVING EXCELLENT CORROSION RESISTANCE AND WORKABILITY, AND METAL MATERIAL

摘要

[Problem] To provide an aqueous lubricating coating agent which is capable of providing a lubricating coating film that exhibits excellent corrosion resistance, workability and removability in actual use. [Solution] An aqueous lubricating coating agent which is characterized by being obtained by blending (A) a water-soluble silicate salt and (B) at least one water-soluble inorganic salt selected from the group consisting of tungstate salts, phosphate salts and borate salts such that the solid content mass ratio (B)/(A) is within the range of 0.7-25.