We have gone through several iterations using different heat sink adhesives over the years on fast sampling hybrides and AD converters. Try LOCTITE OUTPUT 384. It is basically an activator painted on one of the two surfaces to affix. The actual glue is applied in defined dosage on the second surface. WIll set quickly and does not require long curing times. Apart from the usual pre-cleaning there are no nasty mixing or other process stages to control. It has also been received well on the work floor during repair operation. Loctite has a documented web site, try http://www.loctite.com/mrktchnls/electronics/index.html Jorg Richstein ############################################################## 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. For the technical support contact Dmitriy Sklyar at [log in to unmask] or 847-509-9700 ext.311 ##############################################################