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Subject: Re: [Homebrew_PCBs] Re: Heater for Etchant Bath

From: "leon355@..." <leon355@...>
Date: 2016-10-08

I used to use two plastic containers, one inside the other. I put the PCB in the inner container, covered it with ferric chloride solution, and put boiling water in the outer container. Continuous agitation of the inner container etched the board in a few minutes.

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-------- Original Message --------
Subject: RE: [Homebrew_PCBs] Re: Heater for Etchant Bath
From: "'keith printy' keethpr@... [Homebrew_PCBs]"
To: Homebrew_PCBs@yahoogroups.com
CC:


 

When we used to etch boards at work with the ammonium persulfate we used a corningware like an oven safe pan and put it on a small electric hot plate. The etchant will pit the pan but it took a long time before it did.

For ferric chloride a friend of mine used to warm it in the microwave then etch his boards.

 

 

From: Homebrew_PCBs@yahoogroups.com [mailto:Homebrew_PCBs@yahoogroups.com]
Sent: Saturday, October 08, 2016 12:48 PM
To: Homebrew_PCBs@yahoogroups.com
Subject: [Homebrew_PCBs] Re: Heater for Etchant Bath

 

 

Another glass fish tank heater user here, though I've switched to mostly muriatic acid/hydrogen peroxide. My only real complaint is that it's got a "minimum fill" line, so I have to make a giant batch of etchant no matter what size board I do. I often end up not using the tank to do smaller stuff because of this. My tank is also flat (looks like an ant farm box), so it would be even worse if it were larger.

Good luck on it!