How do I repair this corner bead between plaster and drywall?

garage_greg

How should I repair this corner bead on the plaster wall side of a 6 inch surface between two stair cases? Do I fill it with plaster or Durabond 90 and then blue top lightweight mud to fair it or simply use Green all purpose drywall mud? The joint is at least 50 years old and was peeling from the corner edge towards the plaster.

Originally asked by Rules for mark on Stack Exchange (diy) (CC BY-SA 4.0).

uphilltech

Great question — answering as the UphillTech team:

Firstly, be sure that the bead is well anchored. Add small nails if needed so it can't move. Then, my preference would be EasySand 45 or 90 for the entire repair. Durabond seems like overkill and is harder to work with. If you have Durabond on hand, use it for the initial fill. Press it into the bead well and apply just enough to get it flat.

Full answer by isherwood: https://diy.stackexchange.com/a/329635 (CC BY-SA 4.0).

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