I am hoping there is someone that can help me with my Ni EP problem. I am doing some research and being held up by poor Ni surface finishes. We have tried solutions of phosphoric + sulfuric, sulfuric, hydrochloric, etc. and are having either bubble trails, pitting, or a combination of the two. Are there any solutions that do not evolve bubbles in the polishing regime? So far our most successful bath is sulfuric (10M) with 0.7M NiSO4 running at 6V, CD approx between 1 and
2A /cm^2 with heavy bubbling. I appreciate any help.Thanks, Adam