I used some phosphoric acid and 3% hydrogen peroxide to etch some
boards. I warmed it the a hot water bath and it produced a green
tint to the solution after etching and did an excellent job. Has
anyone had experience with this combination???
boards. I warmed it the a hot water bath and it produced a green
tint to the solution after etching and did an excellent job. Has
anyone had experience with this combination???