Adam, Clark pumps use SS for this fluid, as it seems. Inge http://www.clarksol.com/html/GearPumpMatCompat.htm How are you these days, Brian? As an arbiter elegantum, I suppose you live a calm and comfortable life nowadays. Don't see you as freq as usual online. Inge -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Brian Ellis Sent: den 16 april 2007 09:58 To: [log in to unmask] Subject: Re: [TN] stainless compatibility in alkaline etchant I would not recommend stainless steel where there are free chloride ions. Use titanium. Brian Adam Seychell wrote: > Does anyone know if stainless steel 316 corrodes when exposed to > alkaline ammonia chloride etchants ? I have this diaphragm pump with > internal stainless steel fasteners which are exposed to the etchant. > The pump elastomers are EPDM and santoprene, and body material is > glass filled polypropylene. I am wondering if the pump can be used for > alkaline etchants. > > For a test I placed some stainless steel in etchant at let standing > for one week. There was no visible surface corrosion, nor any > measurable mass loss. I know this doesn't tell me I can use the pump > and expect it to last. > > > best regards, > Adam Seychell > > --------------------------------------------------- > Technet Mail List provided as a service by IPC using LISTSERV 15.0 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 > ----------------------------------------------------- > --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 15.0 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 ----------------------------------------------------- --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 15.0 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 -----------------------------------------------------