Manufacturing Products


  • The start of Honjo Chemical’s first production of zinc dust in Japan was successful which led to secure a major share in the market accumulating expertise in this field.
  • Zinc dust and zinc oxide are in production since the start of the company.

Zinc dust

ProductAverage particle size
Zinc dust8±3μm

Characteristics ・Usage

  • One of the characteristics of our zinc dust is less than 10μm and can change the size of the product according to particle size by applying our exclusive processing technology.
  • Zinc dust is mainly used in anti-corrosion paints for marine containers and ships, as well as for large buildings; it is also used for specific purpose such as a reducing agent in organic synthesis and desulfurizing in metal refining.
  • In compliance with increasingly strict environmental regulations, we also offer low Pb and low Cd products.

Product Specifications, etc.

Zinc oxides

Zinc oxide grade 1
Zinc oxide grade 2
Zinc oxide grade 3
Fine particle zinc oxide
Active zinc oxide NO.1
Active zinc oxide NO.2
Conductive zinc oxide

Characteristics ・Usage

  • Various zinc oxide products are available based on the French method zinc oxide manufacturing technology.
  • Zinc oxide is used in electronic materials such as ferrite and varistors, and as a raw material for alkaline and manganese dry cells in addition to the use as a vulcanization accelerator for rubber products.
  • MMS-7B-4 is now available for use in anti-corrosion paints which is supplied to paint manufacturers.

Product Specifications, etc.


  • Nano-sized ultra-fine zinc oxide particles are transparent to visible light and have excellent absorption effects against ultraviolet rays when dispersed.
  • It is widely used in cosmetics, PET films, textiles and others.
  • Products are available with two different specific surface areas: 60m2/g and 100m2/g.

Chemical purity

ImpurityStandard valueMeasurement

Physical property

Specific surface area60m2/g・100m2/g Specific surface area measurement device
True specific gravity5.6g/cm3

Light transmittance

  • Visibility of the transmitted light is almost transparent.
  • Ultraviolet rays, on the other hand, show a remarkable absorption at about 380nm which is an absorption edge of zinc oxide. (See left graph).
BinderAcrylic resin
Coating substratePET Film
Pigment concentration23%
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