Don't fight with outside bullnose drop ceiling corners! Use these instead!
This is a genuine Armstrong product.
Bullnose Drop Ceiling Outside Corner Caps are specialized caps designed for finishing the outside corners of drop ceilings. These caps provide a clean and professional look to the edges of the ceiling tiles, specifically for bullnose style tiles. They are typically used in home improvement projects and are commonly found in the flooring and tiles section of hardware stores.
These are sold individually. Extra care will be taken to ensure that these are delivered safely to your door. You may even receive artwork from my daughters!