Antifoam additives containing between 33 and 89 weight % of a (mono-bis-penta)ethoxylate or (mono-bis-penta)propoxylate of a C16-22 fatty acid and between 67 and 11 weight % of a block polymer of the propylenoxide with ethylenoxide with a molecular weight around 3,800, a cloud temperature (calculated as a 10% aqueous solution) between 9 DEG C and 13 DEG C and an HLB value around 1. The invention also relates to the use of these antifoam additives.
