Plastering an open straight edge

[Steve_1971]

I’m going to have a go at wet plastering a very small internal wall 2x4 ft. One edge will be joining to original plaster the other edge will be up to an external corner but then be exposed brick. So how would you finish off the side that meets the exposed brick?? I can’t use a stop bead because there would be bare metal ?? Any ideas. The plaster will be painted. Please help I’m baffled.

 

[Alastairreid]

Paint the stop bead and caulk the join on the unplastered side.

 

[Steve_1971]

Thank you, what’s the best type of paint to use on a metal stop bead ??