hengshengte

1,environmental halogen-free flame retardant 2,additive or substitute product of expensive flame retardant 3,good hot stabilit Introduction:Zinc Borate is one environmental-friendly halogen-free flame retardant. There are some formulations of XZnO.YB2O3.ZH2O, in which Zinc Borate with 3.5 hydrate is called ZB-2335 (2ZnO.3B2O33.5H2O)is the most common used grade. It has owned some excellent ...