Blackening

02.2

Blackening technology

ZWEZ-Black are specialised products and processes for decorative black colouring and corrosion protection for all ferrous materials (steel, cast iron) including stainless steel.

Procedure

Single blackening
  • Degreasing
  • Rinsing
  • Pickling
  • Rinsing
  • Blackening
  • Rinsing
  • Neutralising
  • Drying/oiling/painting
Double blackening
  • Degreasing
  • Rinsing
  • Pickling
  • Rinsing
  • Blackening
  • Rinsing
  • Blackening
  • Rinsing
  • Neutralising
  • Drying/oiling/painting