general, boards are baked above the boiling point of water, 212 degree F or 100 degree C and below the glass transformation temperature. Lower baking conditions for longer times are also possible. For fast drying use temperature 225 - 250 deg.F (105 - 120 deg C) for 2 hours. Only rarely is this insufficient, and longer prebake times may have to be used. In our cases 2 hours bake cured the volatile problem. ------------- Original Text From: C=US/A=INTERNET/DDA=ID/TechNet-request(a)ipc.ipc.org, on 9/26/96 12:36 PM: We are looking for reports or other references for moisture release rates for different PWB substrate materials. Also recommended prebake parameters for time and temperature in air and for other atmospheres. Any leads will be appreciated Mel Parrish We can be reached at: e-mail: [log in to unmask] Manufacturing Technology Training Center (MTTC), Inc 543 Graaf Street Phone 619 446-5571 Ridgecrest CA 93555 Fax 619 446-4337 Home Page: http://www1.ridgecrest.ca.us/~mttc/mttc.htm Bulletin Board: 619 446-4087 *************************************************************************** * TechNet mail list is provided as a service by IPC using SmartList v3.05 * *************************************************************************** * To unsubscribe from this list at any time, send a message to: * * [log in to unmask] with <subject: unsubscribe> and no text. * *************************************************************************** *************************************************************************** * TechNet mail list is provided as a service by IPC using SmartList v3.05 * *************************************************************************** * To unsubscribe from this list at any time, send a message to: * * [log in to unmask] with <subject: unsubscribe> and no text. * ***************************************************************************