Paul, wake up. Thought you and Steve would be interested in one of our
normal MLB's.

Enjoy,

Earl
----- Original Message -----
From: Paul Klasek <[log in to unmask]>
To: <[log in to unmask]>
Sent: Tuesday, September 07, 1999 4:02 PM
Subject: Re: [TN] FW: Susceptibility of surface finishes to skin oils


> Good practice Bruce ; as you said: than it works in store ;
> and the result is very variable :
> It is commonly known as "rust finger" nickname in toolmakers circles :
> when you have a highly polished XYQZ supersteel moulding tool ;
> some of the unfortunate fellows are literally banned from work on fishing
> stages .
> As the body acids do vary (you tell me, coke?, bad wine?, hormones?);
> to see fingerprints developing on running tool is expensive business .
> Gold I didn't see as critical as osp .
> Our guys are trained : hold the edges only (anytime) .
> They usually remember that only when I'm around .
>
> PAUL
>
> -----Original Message-----
> From: Bruce Tostevin [mailto:[log in to unmask]]
> Sent: Wednesday, 8 September 1999 6:06
> To: [log in to unmask]
> Subject: [TN] FW: Susceptibility of surface finishes to skin oils
>
>
> > Is anyone aware of data or studies on whether or not, gold and OSP
surface
> > finishes are more susceptible to surface oils than HASL?   We wear
cotton
> > gloves at incoming inspection, and on several smt lines,  where we
inspect
> > and run non-HASL boards.  There is a concern about fingerprint oils
> > degrading the finish on an OSP board, which may sit several weeks in
> > storage, and the concern with the immersion gold boards is that the thin
> > finish is porous, and skin oils might cause nickel oxidation.  Is anyone
> > else doing this, or are we overly concerned about the vulnerability of
> > these finishes to skin oils?
> >
> > Bruce Tostevin
> > Benchmark Electronics
> > Hudson, New Hampshire
> >
>
> ##############################################################
> TechNet Mail List provided as a free service by IPC using LISTSERV 1.8c
> ##############################################################
> To subscribe/unsubscribe, send a message to [log in to unmask] with
following
> text in
> the body:
> To subscribe:   SUBSCRIBE TECHNET <your full name>
> To unsubscribe:   SIGNOFF TECHNET
> ##############################################################
> Please visit IPC web site (http://www.ipc.org/html/forum.htm) for
additional
> information.
> If you need assistance - contact Gayatri Sardeshpande at [log in to unmask] or
> 847-509-9700 ext.5365
> ##############################################################
>
> ##############################################################
> TechNet Mail List provided as a free service by IPC using LISTSERV 1.8c
> ##############################################################
> To subscribe/unsubscribe, send a message to [log in to unmask] with
following text in
> the body:
> To subscribe:   SUBSCRIBE TECHNET <your full name>
> To unsubscribe:   SIGNOFF TECHNET
> ##############################################################
> Please visit IPC web site (http://www.ipc.org/html/forum.htm) for
additional
> information.
> If you need assistance - contact Gayatri Sardeshpande at [log in to unmask] or
> 847-509-9700 ext.5365
> ##############################################################