3.5 H2O zinc borate 2335-800, Granular Size: 3um-5 um used in PVC, PE, Polyolefin, Epoxy 3.5 H2O Zinc Borate 2335-800 Specification:Item/GradeZinc borate 2335( 2ZnO.B2O3 3.5H2O)Excellent gradeFirst gradeWhiteness9995Surface water%≤0.51.0Particle size, um8-108-10ZnO, %37.0-40.0B2O3 , %45.0-48.0Loss on ignition,%13.5-15.5Fineness (Residue on 45um sieve ), % ≤0.1Specific gravity, g/cm32.67Melting ...