A quick reference table detailing pre-treatment stages of different metals for plating

The pre-treatment stages of different metals for plating

This section includes a handy quick reference table to show you which pre-treatment stages you need to go through on which metals to prepare for gold and silver plating.

A quick reference pre-treatment table

Please note;

  • A lot of surfaces can be easily prepared by rubbing with MPU and buffing with a clean paper towel.
  • In the table below, where is says ’Gold Flash’, this means a thin and quickly applied layer of gold plate using our Gold Flash solution.
  • For areas that are difficult to reach with MPU or are highly textured, electroclean and electro-activate all in one with our unique ActiClean.
Base Metal Gold Plating (includes rose and green gold made with our Coloured metal Mixers) Silver Plating
Copper, brass, bronze and its alloys 1.MPU or ActiClean or Cleaner 2. Plate a barrier layer of nickel, palladium or white bronze 3. Gold plate 1. MPU or ActiClean or Cleaner2. Silver Plate
Stainless Steel 1. MPU or ActiClean or Cleaner 2. Gold plate 1. MPU or ActiClean or Cleaner2. Gold flash or PP Copper plate 3. Silver plate
Zinc and its alloys (pot metal, Zamak and Mazak) 1. MPU only. Keep dry. Dust off any remaining MPU residue with a clean paper towel.2. Copper plate with Copper Plating Solution thickened with Thickener 3. Barrier plate with nickel, palladium, white bronze or silver 4. Gold plate 1. MPU only. Keep dry. Dust off any remaining MPU residue with a clean paper towel 2. Copper plate with Copper Plating Solution thickened with Thickener 3. Silver plate
Nickel and its alloys- (Monel metal, nickel silver, EPNS) 1. MPU or ActiClean or Cleaner 2. Gold plate 1. MPU or ActiClean or CleanerMPU or ActiClean 2. Gold flash or PP Copper plate 3. Silver plate
Tin and its alloys (pewter, Britannia metal and solder) 1. MPU 2. Plate with some freshly pre-mixed white bronze plating solution using our White Bronze Mixer and our Copper Brush Plating Solution (Use within one hour after mixing). 3. Gold plate 1. MPU 2. Copper plate with Copper Plating Solution 3. Silver plate
Silver MPU or ActiClean N/A
Gold N/A 1. MPU or ActiClean or CleanerMPU or ActiClean 2. Silver plate

 

Despite its name, EPNS (Electro Plated Nickel Silver) does not contain any silver, but is an alloy of copper (60%), nickel and zinc.

Monel metal is an alloy of nickel and copper, with some iron added for strength.

This table is meant as a general guide only. Please refer to individual projects for detailed guidance.

 

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