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 [log in to unmask] ______________________________ 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 [log in to unmask]