Totally agree...


----- Original Message -----
From: "Brian Ellis" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Wednesday, February 11, 2004 2:16 AM
Subject: Re: [TN] Solder Mask Flaking


> The key is post pumice rinse/clean/dry...the boards need to exit the
> machine spotless... and poorly solderable!
>
> Brian
>
> Franklin D Asbell wrote:
>
> > Tony,
> >
> > Do you have a pumice scrubber? We use an Hyoki aluminum oxide pumice
> > scrubber prior to solder mask. Since buying this machine our problems
with
> > solder mask have dropped off to near nothing.
> >
> > We did tests some time back when we were evaluating different masks, we
> > coated an 18X24 panel after pumice scrub...it came out nice and flat,
> > smooth, even, etc etc etc...we could not have achieved those results
without
> > it I'm sure...
> >
> > The key is post pumice rinse/clean/dry...the boards need to exit the
machine
> > spotless...
> >
> > Franklin
> >
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