Ralph: Water soluble masks are typically used in the wavesolder operation to mask areas on the PCB from picking up solder. It is a water soluble polymer that can removed in the post solder water wash process. Depending on whether it's being applied to a loaded or unloaded board. It is normally applied as a liquid by dispensing manual or automatic, and/or screening. It is also available in tape form. The material is allowed to dry/cure. Then the boards can be wavesoldered. We have used these types of products for many years from a variety of suppliers, Techform, Techspray, Chemtronics, Alpha Metals, etc. When selecting a material you want to make sure you qualify it for compatibility with both your soldering and wash process. Regards Michael Barmuta Staff Engineer Fluke Corp. Everett WA 425-446-6076 -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Ralph Richart Sent: Monday, January 09, 2006 9:39 AM To: [log in to unmask] Subject: [TN] Water Solvable Mask We have a requirement for water SOLVABLE soldermask. Any ideas what this means? Is it different than the usual soldermask? --------------------------------------------------- Technet Mail List provided as a 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/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 ----------------------------------------------------- thanks This message (including any attachments) contains confidential and/or proprietary information intended only for the addressee. Any unauthorized disclosure, copying, distribution or reliance on the contents of this information is strictly prohibited and may constitute a violation of law. If you are not the intended recipient, please notify the sender immediately by responding to this e-mail, and delete the message from your system. If you have any questions about this e-mail please notify the sender immediately. Ce message (ainsi que les eventuelles pieces jointes) est exclusivement adresse au destinataire et contient des informations confidentielles. La copie, la communication ou la distribution du contenu de ce message sans l'accord prealable de l'expediteur sont strictement interdits et peuvent constituer un delit. Si vous n'etes pas destinataire de ce message, merci de le detruire et d'avertir l'expediteur. Si vous avez des questions se rapportant a ce courrier electronique, merci de bien vouloir notifier l'expediteur immediatement. --------------------------------------------------- Technet Mail List provided as a 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/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 -----------------------------------------------------