A mould release agent featuring rapid biodegradability, developed for the prefabricated concrete parts industry: vibrated concretes, wooden or metal moulds and forms. Contains plant oils giving it good lubricity properties. Its use creates a highly effective separation layer - even in complex modelling or section surface finishes - which facilitates part mould release, in particular for deferred mould release applications. Rapidly biodegradable (> 90% within 21 days), non-toxic (water pollution class 0).