OS-419 Non-Silicone Defoamer
OS 419 is a non silicone defoamer specifically formulated for controlling foam in dry film developing baths and in stripping baths for dry films and alkaline inks. It is also useful for controlling foam in post cleaning systems after solder reflow. OS 419 provides long lasting foam control at low concentrations. Because of its low use concentration, OS 419 is inexpensive to use.