Antifoam OR-90 is a 100% silicone antifoam compound to be considered for use in non-aqueous formulations in agriculture applications. It is listed by the Organic Materials Review Institute (OMRI) for use in organic production.The components of Antifoam OR-90 meet the requirements of U.S. EPA regulation 40 CFR 1809.960, and are therefore exempt from tolerances in food when used as an inert ingredient in agricultural applications in accordance with the other conditions of that regulation.

This 100% active antifoam compound typically provides excellent foam control in highly alkaline, highly acidic as well as neutral systems and exhibits improved efficiency and longevity over conventional organic antifoam compounds.