Miguel
                Solder balls/splashes??!!!  We're using a VOC free water
based flux for wavesoldering and Kester 951 for hand soldering.  We've had
instances where repair operators use the water based flux for repair, I
know, I know, molten solder and water don't mix well.  To continue, you may
want to try baking the boards to remove moisture trapped inside and/or limit
the amount of flux being used by repair people, flux pens work well.


                Derek Humble
                S.C. Process Engineering
                Brock Telecom Ltd.
                Tel. :(613) 498-3856 ext. 2428
                Fax  :(613) 498-3645
                E-mail: [log in to unmask]


                                -----Original Message-----
                                From:   Miguel Vallejo
[SMTP:[log in to unmask]]
                                Sent:   October 6, 1999 10:46 PM
                                To:     [log in to unmask]
                                Subject:        [TN] FW: solder
balls/splashes

                        Are there any assembly audience out there besides
me?

                        > ----------
                        > From:         Miguel Vallejo
                        > Sent:         Monday, October 04, 1999 6:13 PM
                        > To:   [log in to unmask]
                        > Subject:      solder balls/splashes
                        >
                        > Hi,
                        > Is anyone out there having problems with solder
balls and splashes in
                        > your hand soldering process using no clean
solder/flux?
                        > We've been using Kester SN63PB37 alloy solder,
QQ-S-571-F-WLRP-1, and
                        > 961 flux, in our application and found that it
produces solder
                        > splashes and solder balls.
                        > Is there a way of preventing this condition?
                        >
                        >


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