Function

• The function of corner beads is to reinforce wall corners and protect them against crumbling, denting and other types of damages. When installed properly, they provide a clean, sharp, professional-looking edge to outside wall corners.
  
  

Metal Corner Bead

• Metal corner beads are made with galvanized steel or aluminum. The advantage of using metal strips is that they are durable and long-lasting. On the other hand, metal beads are hard to work with, not pliable and can rust. This rust can bleed through and cause the paint to discolor.
  
  

Vinyl Corner Bead

• The advantages of vinyl beads are that they are easier to install, more flexible and rust-proof. They are easier to use around arches with unique architectural designs and curvatures. Although vinyl corner beads are easier to use, these beads sometimes crack or break during installation.