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Subject: Re: [Homebrew_PCBs] Ferric chloride staining PCB substrate

From: "Technotronic~Dimensions" <infotech@...>
Date: 2017-07-03

Hi

Sorta new here and trying to catch on to some of the procedures described
here.

Was wondering if anyone knows if theres a chemical or chemicals (s) that
will safely dissolve epoxy that some manufacturers
use to encapsulate boards to protect them and make them more or less
unservicable when a component fails?

I have hears there is a chemical that they can be soaked in for many days,
and you have to check on it daily before it eats through
things that u dont want it to damage.

Steve Hearns
Technotronic Dimensions [USA]
WWW.TECHNOTRONIC-DIMENSIONS.COM
1.518.663.3421 (MAIN)
1-877-817-9885 (Voice / Fax Toll Free - US Only)
E-Mail: Steve@...
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----- Original Message -----
From: "LEON HELLER leon355@... [Homebrew_PCBs]"
<Homebrew_PCBs@yahoogroups.com>
To: <Homebrew_PCBs@yahoogroups.com>
Sent: Monday, July 03, 2017 12:56 AM
Subject: Re: [Homebrew_PCBs] Ferric chloride staining PCB substrate


Oxalic acid removes ferric chloride stains. I've got a big bottle of it
somewhere but have never used it.
Leon

On Monday, 3 July 2017, 2:56, "'Brad' unclefalter@...
[Homebrew_PCBs]" <Homebrew_PCBs@yahoogroups.com> wrote: