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Zinc Plating
  • Electro Zinc plating also known as electro galvanizing is used to protect variety of base metals against galvanic corrosion.
  • Zinc plating is a compatible alternative to a toxic cadmium plating.
  • Zinc plated parts can be passivated with clear, yellow, black and olive drab chromate conversion/Iridite coating.
  • We provide zinc plating services covering following specifications and test:

" TRB/Andarn has capabilty to perform and certify finishining to the following specifications".
Specifications Class or types Equivalent specifications Salt Spray for corrosion resistant, Hours Other special requirement
Mil-F
14072B		 AMS  ASTM

B 580

 Mil
STD
171D		 Mil
Std
186E
ASTM-B
633-98
(Replaces old QQ-Z-325)
 Type I as Plated w/o suppl. treatment M227   Type G  1.9.1     Hydrogen Embritt
lement
Relief if specified 
 Type II color chromate M264
M227		 2402E Type B,C
D,E,F 		 1.9.2 CODE
381 Fe/Zn 25382 Fe/Zn 13 383 Fe/Zn 8 		 96
Thickness classes with coating service condition Type III Colorless chromate M227   Type A  1.9.2   12  
Type IV
w/Zinc Phosphate		       1.9.3  384 Fe/Zn 25385 Fe/Zn 13     
  SC 1
(Mild) 0.00025"
Fe/Zn 5 
              
  SC 2 (Moderate)
0.0003"
Fe/Zn 8 
              
  SC3(Severe)
0.0005"
Fe/Zn 12 5		              
  SC 4 (Very Severe)
0.001"Fe/Zn 2