<p>The present invention relates to a mold release composition used for the manufacture of parts made of a hydraulically setting material, including, relative to the weight of the mold release composition, at least: 10-20 wt % of an oil; 1-5 wt % of a water repellent; 0.1-l wt % of a calcium salt; 0.5-3 wt % of a nonionic surfactant or a mixture of surfactants having a hydrophilic-lipophilic balance (HLB) of more than 8; and water.</p>
