PC 903 is a unique flushing and cleaning solvent for polyurethanes. It is reusable. It is indispensable in a wide variety of cleaning applications in the urethane processing. It is a non-gelling and higher flash point solvent and is recommended for both flushing and cleaning, especially in applications in which liquid isocyanates are present either prior to cleaning, or will be introduced after cleaning (such as in a mixing tank).