Thanks Steve. Most of the boards I see use LPI. Mainly, I think because of the accuracy with which it can be applied. Is Hysol SR1000 a Silkscreen only material? Bill Brooks -----Original Message----- From: Steve Gregory [mailto:[log in to unmask]] Sent: Wednesday, June 25, 2003 8:48 AM To: [log in to unmask] Subject: Re: [TN] Hysol SR1000, SR1001 - why? Hi Bill! SR1000 is just a real tough mask. It's got a matte finish so silkscreen and conformal coating adhere well... I've got the datasheet here on my 'pooter, I'll send it to you off-line. -Steve Gregory- Can anyone tell me what PCB design parameters would drive the use of Hysol SR1000 or SR1001 for use as solder mask on a PCB? Why would it be specified for a specific design over other solder masks? Is there some special reason for specifying it? Does it have some special property that would make it preferable to LPI? I can't seem to locate a data sheet on it to evaluate its properties. Bill Brooks --------------------------------------------------- Technet Mail List provided as a free service by IPC using LISTSERV 1.8e 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 or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/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 1.8e 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 or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/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 -----------------------------------------------------