Ruspert coating

  • Commercial name for a metal-zinc micro-coating
  • Coating thickness ca 8…16 µm
  • The composite structure minimises coating damage caused by mechanical stress.
  • Resistance in a salt spray test min. 500 h
  • Prevents the formation of galvanic pairs
  • Small friction factor than in zinc
  • Other commercial brands include Delta, Dacromet, Durocoat, etc.


  1. Heat-treated ceramic surface layer (10 µm)
  2. High-grade non-corrosive interlayer
  3. Metal-zinc layer
  4. Base metal