Introduction: Zinc Borate is a Boron based flame retardant compatible with many polymeric matrices. It is effective both in the solid phase and in the gas phase and its strong smoke suppressing action, helps to improve time of rescue in case of fire.Zinc Borate is a multifunctional flame retardant:Zinc borate is an inorganic compound, a borate of zinc. It is a white crystalline or amorphous powder insoluble in water. Its toxicity is low. Its melting point is 980 °C.Several variants of zinc borate exist, differing by the zinc/boron ratio and the water content,Zinc borate Firebrake ZB (2ZnO·3 B2O3·3.5H2O), is the most usually one .
