It's not really a question of try it to find out. If it's not rated for water wash, you just don't do it - manual afterwards with no-clean, or (horrors) sockets.... Even rated parts have bad days. Be realistic with expectations - unless you can see a suitable sealing method used for switches, don't believe a word of claims to the contrary. Even parts working at high voltage can have bad reactions between internal 'lubricants' and moisture ingress, producing open circuit contact in hands-free production line evaluation that isn't detectable until the switch is (manually) exercised, with no other contaminating influences. Production test is not intended to detect this kind of basic component flaw - when it does, it's already too late. RL --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 15.0 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 or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) 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/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 -----------------------------------------------------