Bob and Ken:

We use temporary soldermask all the time. It's great for masking off any
area of a circuit board that you don't want soldered. We use Kester TC-564-1
water soluble mask. We somewhat routinely bake for one to two hours at 90 -
95C. The baking that we do is tied to using HF-1189A water soluble flux. The
boards are cleaned in a Trieber in line cleaner.

 I can't say that I've left masking on for 12 hours at 125C

Bill Kasprzak
Moog Inc.

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