Technetters, After routing stage the PCBs are washed to remove dust , fingerprints etc . Normally , this is done using washing machine fitted with hot water rinse , soft brushes , high pressure rinse , DI rinse and dryer . As long as the PCB is bigger than , say , 7" by 4" , we have no problems . Probles are with really small boards such as 2" by 3" or even less . What kind of washing machines are used for such small boards ? Edward Szpruch Eltek Ltd - Israel Tel 972 3 9395050 Fax 972 3 9309581 E-mail : [log in to unmask] ################################################################ 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 web site (http://jefry.ipc.org/forum.htm) for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################