Andy,
     
     I'm not familiar with the chemical composition of the Loctite 
     materials you have been using; however, in the past we have used plain 
     old Devcon 5-minute epoxy to cover exposed copper areas. This is going 
     back a few years, but I believe we reflowed and wave-soldered boards 
     that had been touched up with the Devcon epoxy. It can also be used to 
     repair soldermask scratches too.
     
     Denis Mori


______________________________ Reply Separator _________________________________
Subject: PWB trace cut sealing
Author:  Non-HP-AndyF ([log in to unmask]) at HP-Roseville,mimegw3
Date:    7/25/97 3:33 AM


Hi,
     
Does anybody out there know of an "instant" adhesive type material 
that can be used to seal trace cuts?  This material must be able to 
withstand reflow and wave conditions.  
     
Currently, we are using Loctite TakPak materials, and they are not 
cutting it.  The temperatures are just too hot, and the material 
degrades and/or loses adhesion.
     
What do board fabs use to repair scratches?  Perhaps there is an 
"instant" soldermask repair material?
     
     
Many thanks in advance,
     
Andy French
Engineering
Axiom Electronics
Beaverton, OR
TEL (503) 643-6600
FAX (503) 641-0572
Email [log in to unmask]
     
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