I have a 1/16" diameter, 16" long ceiling crack that extends straight from an outside bulkhead corner in kitchen. It's been repaired a few times with spackle, joint compound, and about 2 years ago with calk for flexibility. This repair lasted the longest. But the paint over the repair has cracked slightly. Planning to repaint entire kitchen and need a permanent solution.
What is the best plaster crack repair solution/product so I fix this ONLY one last time? Help!