Bob,

 Try a "Water Pick" from a drug store, I got one at Walmart. I use it after
rework of a small part, it really blasts water under parts. I fill the
container with hot water and blast under small SMT parts. For complete board
wash I use a spray assembly like found on a kitchen sink.

 This is ok for protos but a real washing system would be suggested for
production. It takes a long, good, hot spray to get under BGAs. For QFNs
forget it, you can not clean under those parts. Cleaning solutions are a big
help.

 Also:

  I did not see any comments on my analyses of using tap water. Even with
500mg / L dissolved solids tap water it takes a good number of small drops
to push towards the 10ug/insq limit. A 1mm drop (1/2 sphere) per 1 inch sq
is only .25 ug/insq. It would take 40 drops per inch square and THAT is a
lot of tap water. A quick blow off with an air gun leaves much less.

Bob Kondner



-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Bob Landman
Sent: Wednesday, September 08, 2010 5:18 PM
To: [log in to unmask]
Subject: Re: [TN] Hand Soldering

We switched to water-soluble Kester brand and are very satisfied with it.  
Hot water and a good brush (we use a dish washing brush).

Bob Landman
H&L Instruments. LLC

On Sep 6, 2010, at 6:30 AM, Kenneth Wood wrote:

> Hi all.
> What is the best setup for hand soldering as far as solder / cleaner?
> Rosin core? Water soluble? No-Clean?
> What cleaner too?
> 
> I've been using rosin core with various cleaners but I have a hard time
with
> the white residue the cleaners leave.
> 
> Thanks
> Ken
> 
> 
> 
> 
> 
> ______________________________________________________________________
> This email has been scanned by the MessageLabs Email Security System.
> For more information please contact helpdesk at x2960 or [log in to unmask] 
> ______________________________________________________________________
> 
> ---------------------------------------------------
> Technet Mail List provided as a service by IPC using LISTSERV 15.0
> To unsubscribe, send a message to [log in to unmask] with following text in
> the BODY (NOT the subject field): SIGNOFF Technet
> To temporarily halt or (re-start) delivery of Technet send e-mail to
[log in to unmask]: SET Technet NOMAIL or (MAIL)
> To receive ONE mailing per day of all the posts: send e-mail to
[log in to unmask]: SET Technet Digest
> Search the archives of previous posts at: http://listserv.ipc.org/archives
> Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16
for additional information, or contact Keach Sasamori at [log in to unmask] or
847-615-7100 ext.2815
> -----------------------------------------------------
> 


______________________________________________________________________
This email has been scanned by the MessageLabs Email Security System.
For more information please contact helpdesk at x2960 or [log in to unmask] 
______________________________________________________________________

---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 15.0
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt or (re-start) delivery of Technet send e-mail to
[log in to unmask]: SET Technet NOMAIL or (MAIL)
To receive ONE mailing per day of all the posts: send e-mail to
[log in to unmask]: SET Technet Digest
Search the archives of previous posts at: http://listserv.ipc.org/archives
Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16
for additional information, or contact Keach Sasamori at [log in to unmask] or
847-615-7100 ext.2815
-----------------------------------------------------


______________________________________________________________________
This email has been scanned by the MessageLabs Email Security System.
For more information please contact helpdesk at x2960 or [log in to unmask] 
______________________________________________________________________

---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 15.0
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL)
To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest
Search the archives of previous posts at: http://listserv.ipc.org/archives
Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815
-----------------------------------------------------