Ted-
     
     We do repair on PTFE boards on occasion - I don't know what adhesive 
     we use but we do use TetraEtch from W.L. Gore to prepare the bonding 
     surface. TetraEtch contains HF acid which is no fun to use but the 
     resulting bonding surface is very robust.
     
     
     
     Dave Hillman
     Rockwell Collins
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______________________________ Reply Separator _________________________________
Subject: ASSY: Teflon Board Repair
Author:  [log in to unmask] at ccmgw1
Date:    5/8/96 1:30 PM


     
     Occasionally with Teflon base material boards adhesion of a pad or run 
is lost during assembly, especially with connectors and larger parts which 
require more heat,  and we are wondering if anyone has experience in rework 
or repair to reattach pads or runs to Teflon boards.  We would like bond 
strength in the range of original and without microwave performance 
degradation.  Anybody got any ideas or suggestions?
     Thanks
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