I have used a Dow Corning OS-XXX product to strip silicone coating from tooling. They had an azeotropic mix with alcohol that evaporated in seconds. 5 minutes later, I could coat the tooling in acrylic (I tried it to qualify the cleaner, not used in production) with no problems. Try using one of these fluids. You may also see if the supplier can use an organic machining oil. Aric Parr Sr. Process Engineer Eaton Corporation 1400 S. Livernois PO Box 5020 Rochester Hills, MI 48308-5020 248 608 7780 [log in to unmask] ---------- Original Text ---------- From: C=US/A=INTERNET/DDA=ID/TechNet(a)IPC.ORG, on 8/12/99 7:51 AM: Good Morning Technet: Can anyone suggest methods of cleaning cast aluminum plates of silicone residue (from a silicone-based machining oil)? These plates must be clean enough to bond to using a structural epoxy. Thanks... Jim Marsico AIL Systems Inc. (516) 595-5879 [log in to unmask] ############################################################## TechNet Mail List 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://www.ipc.org/html/forum.htm) for additional information. If you need assistance - contact Gayatri Sardeshpande at [log in to unmask] or 847-509-9700 ext.5365 ############################################################## ############################################################## TechNet Mail List 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://www.ipc.org/html/forum.htm) for additional information. If you need assistance - contact Gayatri Sardeshpande at [log in to unmask] or 847-509-9700 ext.5365 ##############################################################