Sorry, your answer deserved more response. I kind of thought of Naval Jelly used for cars and such. I used it once for derusting some floorboards in an old convertible. It worked fine though the damage had already been done. Is the stuff acidic? It must be according to all the other advice. If so, does water neutralize it and stop the reaction? Maybe this is where my cat comes in. I really do appreciate your input, Earl Moon --------------------------------------------------------------------------------- Technet Mail List provided as a free service by IPC using LISTSERV 1.8d 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 delivery of Technet send the following message: SET Technet NOMAIL Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail 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 ---------------------------------------------------------------------------------