1.Get ISO certificate and ROHS standard
2.professional factory for fire retardant zinc borate
3.Median Particle Size:3~5micron
4.Specification
whiteness¡Ý98%
ZnO(%)37-40
B2O3(%)45.0-48.0
Loss on ignition(%)13.5-15.5
Surface water ¡Ü(%)1.0
Residual of 320 Mesh ¡Ü(%)1.0