LUBRICATING AGENT FOR METALLIC FORMS Russian patent published in 2002 - IPC

FIELD: industry of building materials. SUBSTANCE: invention relates to lubricating agents for forms in making concrete and ferroconcrete articles. A lubricating agent for metallic forms in making concrete and ferroconcrete articles comprises spent motor or machine oil, emulsifying agent, tall pitch and an oxalic acid and water as an addition in the following ratio of components. , wt. %: spent motor or machine oil, 15-45; saponified tall pitch, 1.5-4.5; oxalic acid, 0.1-0.3; water, the balance. Invention provides the enhancement of quality of articles surface, among them, whiteness, enhanced stability of a lubricating agent, its multiple using, exclusion of corrosion of metallic forms. EFFECT: enhanced quality and properties of lubricating agent, decreased cost. 1 tbl