Knowledge
Oleochemicals – important additives for building protection
Oleochemical raw materials, namely metallic soaps and sodium oleate are characterized by a beneficial cost/performance ratio. The water absorption coefficient (w) in water resistant plasters has to be below 0.5 kg/m2h0.5. To achieve this, metallic soaps are widely used. An essential criterion in this application is the quality of stearate. Mainly precipitate stearates, with their high specific surface, perform well. While using sodium oleate during the setting of the render, a reaction with calcium ions in the cement or limestone takes place and the oleates are transformed to hydrophobic...
