Stage 1 : Etching

This process creates small holes on the plastic surface with Chromium sulfuric acid by taking out Butadiene to give adhesion power for plating

BeforeAfter
Acrylontril
Butadyene
Styine
Stage 2 : Reduction

the process that Cr6+ reduce Cr3+ on plastic suface to protect Activation bath
 

Cr6+ solution

Cr3+ Solution

Stage 3 : Activation

In this process Pd-Sn ion is absorbed into the etching holes on the plastic surface so that Electroless Ni can be deposited.
 

Sn
Pd
Stage 4 : Accelerator

Remove Sn ion from Pd-Sn cluster and it can make to occur following e'less nickel process
 

BeforeAfter
Sn
Pd
Stage 5 : E'less Ni

the process make conductivity on plastic surface by the deposition of e'less nickel
  Ni2+ + 2e(by Reduction agent) → Nio Pd catalyst

E'less Ni          

 

Stage 6 : Copper

Copper plating provides brightness and the leveling effect.
 
 

Bright Copper Plating

 

Stage 7 : SB-Nickel Semi Bright Nickel

This process increases corrosion resistance.
 

Semi Bright Nickel  

 

Stage 8 : B-Nickel Bright Nickel

This process provides brightness to the component.
 
 

Bright Nickel      

 

Stage 9 : MPS Nickel

This process creates pores on Bright Nickel.
 

MPS Nickel       

 

Stage 10 : Chrome

This process gives white finish and wear resistance on Nickel layer.
 

Chrome