Dave Best process? Depends on the coating, on how many parts you have to strip (and what you are trying to accomplish), and on what your end results have to look like. If you are trying to strip the entire board, then yes - a chemical stripper is the way to go. The manufacturer of the coating can recommend a method and chemical, it depends on the coating you've applied. Be sure to clean it well afterwards! If you are locally stripping a small area: - you can use the chemicals, - you can mechanically remove it (scrape it off with an X-Acto knife, but carefully!!!), - you can remove it with a hot air jet to soften it (then lightly scrape), - you can sand blast it off with an appropriate ESD safe abrasive and proper setup (depending on the coating, we've got one that this won't work on) regards, Graham Collins Process Engineer, Northrop Grumman Canada Corporation Halifax (902) 873-2000 ext 6215 >>> [log in to unmask] 06/02/03 10:58AM >>> What is the best process and chemical to use to strip urethane conformal coating from plastic bodied surface mount components. Dave David N. Girard David N. Girard, CQE, CQA, NCE Senior Reliability Engineer Honeywell Aerospace Electronic Systems Defense & Space Electronics Clearwater Defense 13350 U.S. Highway 19 North M.S. 322-4 Clearwater, FL 33764-7290 Phone: (727) 539-2018 Fax: (727) 539-4991 E-Mail: [log in to unmask] --------------------------------------------------- Technet Mail List provided as a free 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/html/forum.htm for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ----------------------------------------------------- --------------------------------------------------- Technet Mail List provided as a free 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/html/forum.htm for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 -----------------------------------------------------