Ron, Reading from Mil-G-45204C, (cancelled 7 April 1998) this is electrodeposited, 99.0 percent gold, minimum, knoop hardness 130-200. A nickel underplate of greater than 10 microinches would be required per para. 6.3 depending on the basis material. Para. 3.4 requires the strike and underplating to be .001 inch minus the specified thickness of the gold plating if the basis metal is low alloy steel or other non-copper base metal. You should consider using AMS 2422 and/or ASTM B488 as a replacement specification. R. G. Blomberg Honeywell Staff Production Engineer (727) 539-5534 -----Original Message----- From: TPE Engineering TechNet [mailto:[log in to unmask]] Sent: Friday, August 27, 1999 1:50 PM To: [log in to unmask] Subject: [TN] Mil-G-45204 I have a drawing that requires keypads to be plated with gold. This drawing references MIL-G-45204, type 2, grade C class 00. What type of gold is this? Electrolytic, immersion or electroless. How much nickel is required to be plated under this gold? Any help I can get on this would be appreciated. Thanks, Ron Hayashi Toppan Electronics 1-858-695-2222, ext. 243 [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 ##############################################################