Alfa Chemistry offers halogen-free flame retardants for TPU that applicable to both polyester-based and polyether-based TPU. Our products are a kind of phosphorus and nitrogen-based environmentally friendly flame retardants, which play the role by char formation and gas phase activities. These products provide excellent flame retardancy and can meet the requirements for use in a wide range of fields, including electronics, electrical, wire and cable. Meanwhile, they comply with the current demands for flame retardants to be non-halogenated, low-smoke and non-toxic, as well as green and environmentally friendly.