TRANSENE SULFITE GOLD – TSG-250
Gold Electroplating Solution for Electronic and Aerospace Applications
TSG-250 is a ready-to-use, cyanide free stabilized gold sulfite electroplating solution which deposits soft satin-bright electrodeposits. The solution exhibits a slightly acid or neutral pH for applications where high pH is undesirable. TSG-250 meets Type IIIA of Mil-G-45204 C requirements.
|Temperature||110-160°F (140° F optimum)|
|Current Density||1-8 ASF (2-4 recommended)|
|Anode to Cathode Ratio||1:1 minimum|
|Tank||Polypropylene, Glass, Fiberglass|
|Hardness||60-70 knoop as plated (may be annealed)|
|Gold Content||1 Troy ounce per gallon|
|Plating Rate||0.25 micrometers/minute at 4 ASF|
TSG-250 is ideal for applications where high pH plating solutions react with exposed materials or if a non-cyanide bath is desired. One troy ounce of gold is plated every four amp-hours. The specific gravity of the bath rises with use. Above 30o Baume precipitate sulfate using calcium acetate or barium acetate to lower the SPG to a working range.