Binder clips do not work on SHS/MTH sectional track. Have you tried gap filling superglue? I see no reason it will not work, remember, after the track is installed there will be very little force on these joints. Also, have you worked out the track plan yet? Almost every multiloop plan with turnouts I have built with this track requires cutting a piece of track because SHS/MTH does not make a 2.5" piece like S scale FasTrack does.