... 6 Introduction:Zinc Borate is one environmental-friendly halogen-free flame retardant. There are some formulations of XZnO.YB2O3.ZH2O, ... gravity, great free-flowing etc. As one high efficient flame retardant, it is widely used in plastic, rubber, coating etc ... , wall paper, carpet, paint etc decorative materials to improve flame retardant performance.3. Base on its chemical properties, Zinc borate is ...