Microemulsion defoamer. ROMAKK DEFOAMER RCDE MD-100 is Microemulsion defoamer composition is Silicone free oil in water colloidal dispersions and is useful in defoaming aqueous systems such as in paper machines and latex paints. These formulations are Mineral Oil based emulsions and form very good dilutions with water. They have good compatibility with anionic/nonionic & cationic products.