I find semi-friendly ones easier to work with. Dewey -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Giamis, Andy Sent: Thursday, March 21, 2013 7:57 AM To: [log in to unmask] Subject: Re: [TN] SAC 305 etch To see Sn grain boundaries , don't etch. Use cross-polarizers. -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of [log in to unmask] Sent: Thursday, March 21, 2013 10:53 AM To: [log in to unmask] Subject: [TN] SAC 305 etch What would a good etch be for etching SAC305 solder joints to enhance viewing grain boundaries? Thanks, John ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________ ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________ ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________