Can he not have the boards pre-routed except for tabs to the panel, then mask the tabs before coating? Sounds too simple...you guys probably already thunk of that. Ralph Vaughan > ---------- > From: Graham Naisbitt[SMTP:[log in to unmask]] > Reply To: TechNet E-Mail Forum.;Graham Naisbitt > Sent: Friday, September 11, 1998 11:11 AM > To: [log in to unmask] > Subject: [TN] Routing conformal coatings > > Hi TechNetters, > > I hope you can help. We have a customer who needs to route (de-panellise) > his assemblies after Conformal coating. The coating is an acrylic. > > The problem is that when he does this routing operation, the coating (not > surprisingly) goes into a state of partial melt so that the coating is > stringing on the underside making a problem for clean-up which is costly. > > He cannot route from the other side. He has tried chilling the assembly > but this is impractical because of the time constraints. He cannot > selectively NOT coat the affected area because his selective coating > system then takes too long for the operation. > > Does anyone have any suggestions? > > Regards, Graham Naisbitt > > [log in to unmask] > > Concoat Ltd Phone: +44 1276 691100 > Alasan House Fax: +44 1276 691227 > Albany Park > CAMBERLEY > GU15 2PL UK > > Any opinions expressed are those of this employer. > ################################################################ TechNet E-Mail Forum 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's web site (http://www.ipc.org) "On-Line Services" section for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################