Abstract: The invention relates to the use of diazepine derivates of general formula (I) and/or (II), wherein R1, R2, R3 and R5 independently represent H, C1-C20-alkyl, C3-C8-cycloakyl, C6-C10-aryl or alkylaryl comprising C1-C4-alkyl and C6-C10-aryl groups, R4?H, C1-C6-alkyl(iden), as latent hardening components for resinous substances comprising functional groups which can react with amines. Based on the particular advantages of the inventive hardening components, such as good producibility, environmentally friendly and having an excellent shelf life of the resin/hardening mixture, said diazepine derivatives are outstanding for single-componented, moisture-hardening polymer masses, which are particularly useful in the production of sealing materials, adhesives and coating materials.