Problem etching PC boards.?

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Problem etching PC boards.?

I'm using the peroxide/muriatic acid formula with sharpie resist pen. This has worked for me before, but now, the ink just comes right off. I'm doing this outdoors and the temp is currently ~100F. I'm thinking that's the culprit.
Any other ideas?

2006-08-04 18:01:49 · 2 answers · asked by Salami and Orange Juice 5 in Science & Mathematics ➔ Engineering

2 answers

I think that the ink has to dry real well. Is it humid outside?

2006-08-04 18:07:00 · answer #1 · answered by rscanner 6 · 0⤊ 1⤋

I used to screen print the pattern & etch with ferric chloride.If printing is done with ordinary gloss ink, you can get wonderful professional results.Even minute hair like details can be got.Must be dries @least24hrs before etching.

2006-08-04 18:40:36 · answer #2 · answered by 007james bond 3 · 0⤊ 0⤋