24k Brush Gold Solution / Pen Gold Plating Solution - TDS
Gold Plating Services’ 24K Brush Gold / Pen Gold Plating Solution is cobalt hardened acid gold electroplating solution that will yield a relatively low stress, fine grained deposit with hardness range of 130- 200 Knoop. This solution is ideally suited for printed circuit boards fingers, contacts, fine select applications as well as decorative deposits.
The purity and hardness of the final electrodeposited gold will be equivalent to Type I, and II, Grade C, specifications as indicated in MIL-G-45204C, as follows;
Note: this coverage is based on the assumption that all gold in the solution will be deposited. In actual practice this is not likely since there is normally solution loss during use.
Anode to Cathode Ratio N/A
Specific Gravity 1.08 – 1.15 (11-16 Be)
Time to deposit 0.00002’’ (0.5 micron) N/A
Cathode Efficiency ~35%
Current Density Variable – 25 to 200 milliamperes / in2, (120 ma/in2 – nominal)
Voltage 3 - 6 volts DC (Pen Gold 4 - 6, Brush 3 - 5)
Application tip/sleeve Pen Gold - Felt tip (fine or medium), Brush Gold - cotton sleeve
Anode Brush Gold -Type 316 stainless steel, platinum plated titanium or carbon
Agitation Continuous solution movement over surface