VOC-free silicone-containing defoamer for aqueous coating systems, printing inks, overprint varnishes and adhesive systems. Compatible defoamer. All purpose and easy to incorporate. BYK-094 is particularly recommended for defoaming aqueous flexo and gravure inks and overprint varnishes. The defoamer is characterised by a highly spontaneously defoaming effect and its outstanding stability on the press. It prevents foam building up in the ink ducts and/or pump system.