Additol P 950 Cytec Surface Specialties North America South and Central America Dispersing agents Polyurethane Powder coating Additolâ„¢ P 950 is a tribo active masterbatch for use in hybrid, TGIC, polyurethane and TGIC alternative systems. It contains 5% active material and has been designed for indoor and outdoor use. It greatly improves the charging ability of powder coatings applied with a tribo gun. Additolâ„¢ P 950 is easily handled and greatly improves dispersion of the active ingredient in powder coating formulations. Tribo active masterbatch. Improves charging ability and dispersion. Used in powder coating formulations. Designed for indoor and outdoor Use.