Abstract: An oil lubricant for cold plastic processing of metallic material obtained by compounding either one or both types of polymers of 2-ethyl polyacrylate-hexyl ester and polymethacrylic acid lauryl ester with one or two types of oiliness improvers selected from the group consisting of refined lard, oleic acid, phosphate, hindered ester, isostearic acid, and C.sub.18 saturated higher alcohol and which are liquid at room temperature and which are compatible with the polymers. The oiliness improver is compounded as a thinning oil at a specified composition ratio.

Abstract: A cold working lubricant for metallic conduits in the form of a liquid wherein butyl acrylate ester-methyl methacrylate ester copolymer of 10-40 in resin acid value and -10.degree. to 20.degree. C. in glass transition temperature is emulsified and dispersed; an emulsified product of the straight chain saturated fatty acid or its ester with a melting point of 30.degree.-70.degree. C. can be further added thereto.