Deltar-Shield is a codeposite consisting of a galvanized, iridescent passivated or silvered base coat and a Deltar topcoat.

The most important feature is high corrosion resistance combined with low thickness. Deltar-Shield is processed according to ASTM B 633-98 and ASTM B117-97 reference standards.


  • High corrosion resistance
  • Absolute uniformity of deposition
  • Absence of tip effect
  • Low thickness
  • Self-healing
  • Absence of wide tolerances on the finished part


D-shield is applied to galvanized, iridescent passivated or silver materials in order to preserve the deposit itself from corrosion. The latter feature is due to the presence of the D-Shield topcoat, an organic coating within which submicron particles of organic polymers and polysilicides are incorporated . Mechanical stresses, such as rubbing, slight scuffing, and impact, do not cause premature white corrosion phenomena. Salt spray corrosion resistance conducted according to ASTM B 117 of parts coated with 12 ums and heat treated at 120°C for 1 h verified the absence of white corrosion for 350 h and the absence of red rust for 450 h. In addition, repeated thermal tests at 120°C/ 1 hour do not produce changes in protective qualities.

Some examples of processing