Solenis offers a full range of sizing agents to help papermakers improve the aqueous holdout of their products, whether it be a printing paper or packaging board that must meet a specific performance standard, such as the UN Cobb water absorption test. Our internal sizing agents come in a number of chemical compositions — alkyl ketene dimer (AKD) size, alkyl succinic anhydride (ASA) size and rosin size — for superior hydrophobicity, retention and distribution in acid, neutral or alkaline sizing environments. And, our portfolio of surface sizing agents includes a variety of products that improve the water resistance and oil resistance of food contact papers.