The invention relates to molecular de-airentrainer compositions comprising at least one ethoxylated ether amine and at least one acetylenic alkoxylate. The molecular de-airentrainer compositions are useful in controlling the air content of a superplasticizing mixture. The molecular de-airentrainer of the invention are useful in a variety of applications, including the preparation of cementitious mixtures, coatings and pressure sensitive adhesives.