We have our PCB supplier give us the solder mask typically in two containers for us to use. One is the color and the other is the hardener. I know http://www.circuittechctr.com also sells solder mask for this purpose. I have used it and it works well. Kat <font size="2">---------------------------------------------------<br> Technet Mail List provided as a free service by IPC using LISTSERV 1.8e<br> To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet<br> To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL)<br> To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest<br> Search the archives of previous posts at: http://listserv.ipc.org/archives<br> 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<br> -----------------------------------------------------<br></font>