TechNetters, Is there chemistry available to remove oxidation from gold tips without compromising solderability? More specifically we have a costumer that has sent back some boards that have been stored for almost a year. The gold tips are tarnished. The customer has requested that we rework the boards, without out buffing the gold out. An analysis of the thickness gives 40 microinches of gold on 300 microinches of nickel. Many thanks, Chris Rucinski Process Eng. ################################################################ TechNet E-Mail Forum 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://jefry.ipc.org/forum.htm) for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################