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Hanyang Chemical is the best and most experienced surface treatment
chemical manufacturer in Korea.

Passivation

Zinc
Clear type Blue type Black type
Type ZINCOT 20 ZT-252 ZINBLACK
ZW ZT-252P
Z-1000
Trivalent passivation for Zinc Clear type
  • Name

    ZINCOT20

  • Features

    Excellent corrosion resistance
    Stable and long bath life
    Clear and bright appearance

  • Name

    ZW

  • Features

    Clear or yellow trivalent passivation for zinc
    Excellent corrosion resistance
    Working available at ordinary temperature

  • Name

    Z-1000

  • Features

    Applicable for hot dip zinc galvanizing
    Excellent corrosion resistance
    Clear and bright appearance

Trivalent passivation for Zinc Blue type
  • Name

    ZT-252

  • Features

    Clear and bright appearance
    Easy to use (one package system)

  • Name

    ZT-252P

  • Features

    Excellent brightness
    Contain fluorine
    Easy to use (One pack system)
    Shorter process period than ZT-252

Trivalent passivation for Zinc Black type
  • Name

    ZINBLACK

  • Features

    Good appearance
    Excellent corrosion resistance