Graham, Thanks for the insights on the "blush" phenomena. How interesting that it comes up in the same discussion as your "work naked bonus". Is there any link between the type of solvent in the coating and blush, or is it exclusively humidity related? One project that has been suggested for me is to replace the toluene and xylene we use as acrylic thinners with methyl propyl ketone. If such a switch were made, would you expect a greater or lesser susceptibility to blush, or is it immaterial (no pun intended). Doug Pauls Rockwell Collins --------------------------------------------------------------------------------- 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 the following message: SET Technet NOMAIL Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail 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 ---------------------------------------------------------------------------------