Re: Pealing skin on circuit boards

From: Matt Rossiter <rossiter_at_ni.net>
Date: Sun Jun 08 2003 - 12:50:19 EDT

I heard there was some type of solution you could "paint" on to the board
which keeps the solder mask from flaking. I realize the board is no real
danger, but I hate when it flakes off in big chunks.

Matt

----- Original Message -----
From: <solarfox@texas.net>
To: <vectorlist@synthcom.com>
Sent: Friday, June 06, 2003 4:52 PM
Subject: Re: VECTOR: Pealing skin on circuit boards

> On Sat, 21 Jun 2003 11:08:35 -0700, you wrote:
>
> >Some of my Sega and Midway boards are constantly having problems with
that
> >green stuff flaking off. What do you guys use to keep that from
happening?
>
> The "green stuff" is called solder mask... and it won't hurt anything
> if it flakes off, at least not directly. It's just there to keep solder
> from flowing all over the circuit traces and wicking its way into places
it
> shouldn't go when the board goes through the wave-soldering machine, and
> has the side benefit of sealing and protecting the traces from oxidization
> and contaminants afterwards.
>
> I don't think there's much you can do to stop the flaking, short of
> coating the entire board in epoxy. :)
> --------------------------------------------------------------------------

---
> "In ancient times, they believed that there were only four kinds of
matter:
> Earth, Water, Air, and Fire.  Nowadays, of course, we know that there are
> actually four states of matter: Solid, Liquid, Gas, and Plasma.  Thank God
> for progress!"  ---(Kelvin Throop III)
> --------------------------------------------------------------------------
---
> solarfox@DON'TMESSWITHtexas.net                              (Gary Akins
jr.)
> http://lonestar.texas.net/~solarfox
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Received on Sun Jun 8 09:52:04 2003

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