955 Defoamer, from ADM Tronics, is an aqueous defoamer designed for use with water-based inks, coatings, and other liquids. The product reportedly is effective both as a prevention aid and a foam knock-down additive. It can be used as a last-in ingredient to prevent foam from forming. ADM says minimum quantities of 955 allow the product to work efficiently, with typical addition levels ranging form 0.25-1.5%. The defoamer lasts for the life of the liquid product when thoroughly blended in with a low-shear mixing apparatus. Upon addition of the product, the foam reportedly begins to dissipate immediately and the product keeps working to prevent the foam from regenerating. ADM Tronics Unlimited, Inc., 224-S Pegasus Ave., Northvale, NJ 07647, 201-767-6040, fax: 201-784-0620, e-mail: sales@admtronics.com, Web: www.admtronics.com.