Small or bullnose corner bead may be fabricated from which material/flange?

Small or bullnose corner bead may be fabricated from which material/flange?

• A. Woven Mesh flange
• B. Solid brass
• C. Plastic rectangle
• D. Aluminum angle

Answer: (A)

A bullnose or small corner bead needs a flange that can bend smoothly around a rounded edge and give plaster a good surface to grip. A woven mesh flange provides that flexibility and creates a strong key for the plaster to adhere to the curved profile, producing a clean, durable bullnose finish. The other options are less suitable: solid brass is rigid and costly, not practical for curved edges; a plastic rectangle lacks the grip and ability to conform to a curve; an aluminum angle is an rigid L‑shape meant for square corners, not a rounded bullnose.

A bullnose or small corner bead needs a flange that can bend smoothly around a rounded edge and give plaster a good surface to grip. A woven mesh flange provides that flexibility and creates a strong key for the plaster to adhere to the curved profile, producing a clean, durable bullnose finish. The other options are less suitable: solid brass is rigid and costly, not practical for curved edges; a plastic rectangle lacks the grip and ability to conform to a curve; an aluminum angle is an rigid L‑shape meant for square corners, not a rounded bullnose.