Product Main

Specifications

Product Name: Zinc Dust
Main Features of Zinc Dust:
● General Purpose Grade
● High dispersivity ability.
● Specifically for Epoxy Systems
● Color very near to Zinc Dusts
● Up to 50% replacement of Zinc Dusts without drop of anti-corrosive properties
Suggested Dosage
No more than 50% of the powder percentage
Technical Index Q/320292AAJR02-2007
 
  Items Index Testing Method
  Appearance Grey Powder Eyeballing
  Fe3O4% ≥ 15.0 Appendix A
  P2O5% ≥ 30.0 Appendix C, D
  TiO2 ≥ 1.0 Appendix B
  Screen floating (500 mesh um) % ≤ 1.0 GB/T1715-79
  Density g/cm3 5.0~6.0 GB/T1713-89
  Oil Absorption % ≤ 10.0 GB/T5211.15-88
  Water soluble % ≤ 1.0 GB/T5211.1-85
  Volatile (105℃) ≤ 1.0 GB/T5211.3-85
  PH Value of Water Suspension 7~9 GB/T1717-86

Anticorrosion Principle
After surface treatment on granule of the powder, it enhances the binding power between the pigments and metal. On the other hand, because of the nanometer size of the powder, it enhances the cohesion of the film and low down the permeability. At the same time, the compound phosphates can form depuration layer. And this layer firmly adhere to the surface of metal, then protect the frame of metal.