BYK Additives & Instruments is launching a new additive on the market: BYK-1640 is a polymer-based, VOC- and silicone-free defoamer for aqueous systems which is also suitable for some applications that come into direct contact with food. Mineral-oil-based defoamers are widely used – mainly in applications in which price is a key criterion. Negative side effects such as separation tendency, odor, environmental aspects and the often lacking approvals for direct food contact mean that the ma...