Moonman There's no way a commercial double-sided laminate over 2 mm thick will use 106 style, or any monofilament cloth. It will be made from 7628 or 7634, with c. 40% - 45% RC. Quite apart from economic factors, the use of fine cloths with high resin contents will induce slippage, causing all sorts of dire problems. Best regards, Brian Earl Moon wrote: > > Doug, > > Very profound and interesting. I'd like to get deeper into this if you will. > > The surface layer pregs usually are 106, or so, glass styles. The resin to > glass ratios are in the 65 to 70% range. I should think this would offset > any problems suggested. > > Just exploring a bit, > > Earl > > --------------------------------------------------------------------------------- > Technet Mail List provided as a free service by IPC using LISTSERV 1.8d > To unsubscribe, send a message to [log in to unmask] with following text in > the BODY (NOT the subject field): SIGNOFF Technet > To temporarily halt delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL > To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest > Search the archives of previous posts at: http://listserv.ipc.org/archives > Please visit IPC web site http://www.ipc.org/html/forum.htm for additional > information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 > --------------------------------------------------------------------------------- --------------------------------------------------------------------------------- Technet Mail List provided as a free service by IPC using LISTSERV 1.8d To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/html/forum.htm for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ---------------------------------------------------------------------------------