Victor,

I've used the various Zyglo UV dies to check for cracks in ceramic
substrates & packages as well as checking for cracks in various Low Temp
Co-fired ceramics, but have not had the opportunity to attempt to use it on
a PWB laminate.

As 'penetrating' as that stuff is I would almost be surprised if it did not
wick down the fibers on a cross-section of a good laminate....

Sometimes a Sharpie magic marker works very well too.  Blue is always my
favorite.  Rinse/wipe with acetone or alcohol, as appropriate 

Keep your hands clean!


Steve Creswick
Sr Associate - Balanced Enterprise Solutions
http://www.linkedin.com/in/stevencreswick
                         616 834 1883




Original Messsage
From: Victor Hernandez
Sent: Tuesday, July 1, 2014 12:24 PM
To: [log in to unmask]
Reply To: TechNet E-Mail Forum
Subject: [TN] Zyglow, ZL-67, dye penetrant

Fellow TechNetters:

Has anyone use the above stated product in a PWB/PCB cross section to
highlight cracks/fractures. Sometimes can be used to substitute Dykeem Steel
rule dye.

Victor,



______________________________________________________________________
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] 
______________________________________________________________________