RELEASE COMPOSITION FOR HYDRAULIC BONDING MATERIALS, METHOD FOR FACILITATING UNMOLDING OF HYDRAULIC BONDING MATERIALS FROM MOLDS, AND METHOD FOR CASTING MOLDED PRE-FORMED ARTICLES OF HYDRAULIC BONDING MATERIAL

摘要

- 14 -RELEASE COMPOSITION FOR HYDRAULIC BONDING MATERIALS,METHOD FOR FACILITATING UNMOLDING OF HYDRAULIC BONDINGMATERIALS FROM MOLDS, AND METHOD FOR CASTING MOLDED,PRE-FORMED ARTICLES OF HYDRAULIC BONDING MATERIALABSTRACT OF THE DISCLOSUREThe present invention relates to a releasecomposition for facilitating the unmolding of bondingmaterials such as concretes from molds for purposes ofpre-fabrication. Also disclosed are methods forfacilitating the unmolding of such bonding materials bycoating the mold with such release composition, andfor casting molded, preformed articles which includescoating the mold prior to casting in order tofacilitate the unmolding operations.The release composition according to the inventionis an aqueous anti-freeze solution containing nopetroleum based products. It comprises a combination ofat least one active release constituent which may be anorganic acid salt, at least one clarifying anti-freezeagent which may be a hydroxyethylether; at least onespreading agent which is an ester; at least onepolyether lubricating agent; and water as a solventmedium, in variable proportion according to thedesired concentration.