I've used several kinds. Pumice, microetch and a acid soap. I liked
     the pumice the best. However its been several years since i used it.
     The only difficulty I remember having was with thin core and .5 oz
     copper. Core thickness of .006" or less we couldn't run. I'm sure
     improvements have been made since then. Currently running microetch in
     conveyorized equip. and core thickness is not an issue. We can run
     .002" cores with .5/.5 cu.

     Mike Doty
     Hadco TCE


______________________________ Reply Separator _________________________________
Subject: [TN] Panel Prep
Author:  Wayne Martin <[log in to unmask]> at smtplink-hadco
Date:    1/11/00 3:38 PM


Still looking for additional feedback as to what is the perfered method for
cleaning cores before dry film lamination.
Any information would be appreciated.
Thank you

##############################################################
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
##############################################################