pcb etchant

[eng_64]

hello there


I'm a newbie for ammonium persulphate etchant is it possible to reuse the solution for several boards.and also want sb. to tip me what is the maximum board size that a single solution can etch

many thanks in advance

 

[Crosswire3]

You should be able to reuse solution for quite a while until it becomes very diluted and no longer etches well enough.