Ken or any other Technet guru.. I am not a total novice in this business, but I don't understand where you would use a temp. soldermask. In all the application that I have been involved in, I worry about soldermask adhesion. Soooo, would someone explain so that I might become a little smarter before this old mind starts to head toward senility ??? Oh, am I already there?? Hey, thanks in advance. Have a great day. Regards, Bob Vanech Bob BVAN Enterprise > We have an application where we need to apply temporary solder mask prior > to a high temp bake in preperation for wave solder. These are polyimid > boards and we bake them at 125C for 12 hours prior to wave solder. We try > to wave solder them as soon as they cool to ambient so applying mask after > bake is out of the question. > > We have two different masks we currently use that are water-soluble. > Neither one comes off very well in the water wash and one of them leaves a > residue/stain due to the high temp bake. > > Do any of you have a source for a temporary solder mask that can hold up to > this temp/time and still be removed easily without residue (preferably with > water)? > > > Thank you, > > Ken Bloomquist > Sr. Principal Process Engineer > PRIMEX Aerospace Company > P.O. Box 97009 > Redmond, WA 98073-9709 > http://www.primextech.com > > Ph: 425-885-5000 > FAX: 425-882-5786 > [log in to unmask] > > Northcon/2000, Chairman of the Board > http://www.northcon.org > > Electronics Manufacturers Association (EMA), Vice President > http://www.ema-wa.org > > ############################################################## > 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 ##############################################################