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'[EE]: Chemical etching?'
2001\04\22@122316 by Dave Selvester

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Has anybody any experience using the same pcb chemical process to etch small fascia panels.I have found companies that can produce these and it seems to me that that it would not be disimilar.
I,ve heard copper and stainless steel fascia can be made by having a transparent 'master'(as in a pcb) and exposing a sheet of metal(which had previously been sprayed with photoresist).I guess the only difficulty would be deciding how far down to take the 'etch'

Anybody any ideas?

Dave

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2001\04\23@193424 by Peter L. Peres

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Go ahead and do it. Aluminium can be etched in HEAVILY DILUTED FeCl3.
PLEASE DO NOT USE THE CONCENTRATED FECL3 USED FOR COPPER WITH ALUMINIUM.
DANGER OF HYPER-REACTION (AUTOTHERMAL). Use the FeCl3 solution cold (do
not heat it as for copper). Use a fume vent or do it outside. Work time is
tens of seconds to minutes.

Peter

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