White bronze brush plating - an introduction and troubleshooting
White bronze plating solution - uses and application guide
Our Bronze Mixer, when mixed with our Copper Plating Solution, creates a white bronze plating solution that plates a brilliant white layer. It has been introduced as an alternative to nickel plating solution and an alternative, cheaper option to platinum, white palladium and palladium when used as a barrier layer for gold on copper.
To make white bronze plating solution, you mix Copper Brush Plating Solution with Bronze Mixer at a ratio of 1:2
So, if you are using 10ml of Copper Brush Plating Solution you’ll need 20ml of Bronze Mixer.
Leave at room temperature for 15 minutes before use.
Plate at 3-3.5v
Uses of white bronze brush plating solution
Nickel is now banned by the EU for use in the cosmetic industry, as it causes nickel allergy in some people. White bronze is the ideal substitute for nickel plate, where the surface of the metal is likely to come into contact with the skin, such as on jewellery or on spectacle frames.
Nickel plate is commonly used as a barrier layer between gold plate and copper or brass, to stop the gold diffusing back into the base metal. White bronze, created by mixing our Bronze Mixer with our Copper Brush Plating Solution, can be used as a replacement, and the brass antique carriage clock in the accompanying picture is a good example of this. It was first polished, then white bronze plated and finally finished with gold plating solution. The lamp was plated gold to cut down on tarnishing and cleaning.
White bronze also makes an excellent key layer when plating silver onto pewter, Britannia metal or other high-tin alloys.
A platinum or carbon electrode should be used when white bronze plating and mixed solution should be left to stand for 15 minutes before using and used up within 24 hours. Best used at a room temperature of 20 degrees C.
White bronze plating troubleshooting table
|Type of problem||Possible reason||What to do|
|No plating taking place||1. Incomplete electrical circuit2. Surface not clean enough||1. check all connections and clean if necessary. Make sure the swab is fully soaked in solution.2. Repeat cleaning cycle.|
|Plating is patchy or not plating at all||Refer to first and second point above||Clean with MPU, paying particular attention to areas that are un-plated.|
|Plating is turning dull, especially on corners or protruding parts.||Formation of inactive layer due to too high a voltage.||Reduce the voltage.|
|Faint lines appearing on plated work.||Marks forming because of hardness of water||Spray work with deionised water before plating.|