But Ramon, all the experts in this forum have repeatedly stated that alcohol is a poor cleaning agent. It desolves any oil, greases or fluxes and then redeposits a thin layer everywhere as the alcohol evaporates. Oh, and it also leaves an ionic element on the board surface. The DI water wash is a better solution IMHO. Phil -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Dehoyos, Ramon Sent: Thursday, November 03, 2005 2:32 PM To: [log in to unmask] Subject: Re: [TN] compressed air It would be better in a exhaust hood. To get very clean air, use an in line air refrigerant system. They cost around $ 800.00 and are low maintenance. Hook an ESD air gun to blow and you are ready to remove those bunnies. I would clean them in alcohol bath with a brush afterwards to make sure they are all clean. Ramon -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Bloomquist, Ken Sent: Thursday, November 03, 2005 11:20 AM To: [log in to unmask] Subject: Re: [TN] compressed air Hi Barb, We do this all the time and depending on how bad it is we either gently blow with an ionized air gun in the return and repair area or if it's worse we'll actually take it out on the loading dock and give it a good blast again using an ionized air gun. If you are not sure about where it's been or what sort of "dust bunnies" are on it you might want to wear a dust mask. KennyB -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Barbara J. Rich Sent: Thursday, November 03, 2005 8:00 AM To: [log in to unmask] Subject: [TN] compressed air I am looking for any information on using compressed air to blow off "dust bunnies" on circuit boards coming from the field. Barb Rich Admin. Support Mfg. Sanmina-Sci 321 S. Taylor Ave. 303-264-2009 --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 1.8e 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 ----------------------------------------------------- --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 1.8e 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 ----------------------------------------------------- --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 1.8e 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 -----------------------------------------------------