Lou, we used to have the same callout on our PCB's coming from out contract Manufacturers. Over a couple of years ago we changed over to labels, which give us the ability to change information, such as Rev status caused by an engineering change (not that that ever happens). We have boards that are conformal coated and the coating just covers the label and keeps it in place and is still legible. We us a Brady thermal transfer label maker with there THT labels and have been very happy with the results. Some of our outside vendors use different Manufacturers Label makers but we have not seen any different results with any of them. I like the Brady label maker because the software used to run it is very easy to use and easy to teach an operator. -----Original Message----- From: Lou Hart [mailto:[log in to unmask]] Sent: Wednesday, November 22, 2000 9:10 AM To: [log in to unmask] Subject: [TN] Labeling of PC boards TechNetters, Here is a low-tech question. I have a customer who has been calling for printing of board numbers, revs, serial numbers using epoxy ink. This operation is time consuming, messy, prone to human error. We've been talking about using computer-printed paper labels instead of epoxy ink. The environment these boards go into is not particularly benign. Some are used in train cars. They get an acrylic conformal coating. Has anyone had experience in the matter of label durability? Any test methods to suggest? Thanks for any comments. Lou Hart 412-858-6184 Compunetix ---------------------------------------------------------------------------- ----- 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 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 ---------------------------------------------------------------------------- ----- --------------------------------------------------------------------------------- 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 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 ---------------------------------------------------------------------------------