Enviro De-foamer #756 is specifically designed to prevent foaming caused by cleaning of rosin, water soluble and "no-clean" flux residues. The #756 immediately suppresses foam that already has been formed on the surface of a bath or rinse section. The #756 can be used, depending on acidity, solid content and the type of flux being removed, at as little as .01% in the wash or rinse section's volume; to achieve the desired result.