Use of Mist Suppressants in Hard Chrome Baths-Quality Testing Extended Abstract

摘要

The major objective of thid project was to assess and evaluate hard chrome plating quality concerns with the use of what we have caleed a third generation fume suppressant which is a wetting agent type fume suppressant WA/FS. The third generation WA/FS (introduced in the late 1980s/early 1990s) are perfluorinated like rearlier products, but with higher solubility and lower foaming. SUpplemental compouns are not required to keep the solubility low. Active ingredients include: organic fluorosulfonate and tetraethylammonium-perfouorocytyl sulfonate. The largest benefit of the third generation WA/FS is that three appears to be no adverse effects on the chromium plate during hard chrome plating operations. This is likely due to the fact that salt is not required to reduce the solubility. The salt is one of the additives in the second generation WA/FS that produced the daverse effects in hard chrome plating. Further testing is being conducted at the time of this publication.