3 ms·
I have made a number of PCB's at home. By far the best etchant is warm hydrochloric acid (30%) and peroxide (3%). In a 1:2 mixture (HCL:Peroxide). Will etch a b
by Workaccount2 2y ago
I have made a number of PCB's at home. By far the best etchant is warm hydrochloric acid (30%) and peroxide (3%). In a 1:2 mixture (HCL:Peroxide). Will etch a board in about 3 minutes. But be sure to do it outside.