Corner Bead – Plain

Corner Bead - Plain

A Plain Corner Bead is a rigid, L-shaped metal profile (typically galvanized steel) designed specifically to protect and reinforce the external corners of gypsum drywall partitions and ceilings.

  • Corner Protection: Shields the vulnerable external 90° corners of drywall from impact damage, dents, and crushing.
  • Reinforcement: Provides a strong, rigid backing for the joint compound (mud), preventing cracks at the corner over time.
  • Creating Straight Lines: Serves as a guide for applying joint compound, ensuring a perfectly straight, sharp, and durable corner.
  • Forming the Corner: Defines and maintains the precise angle of the external corner during the finishing process.

Uses:

  • After drywall sheets are installed, the bead is positioned over the external corner.
  • It is fastened securely to the underlying framing or drywall using nails, screws, or a crimping tool.
  • Multiple layers of joint compound are applied over the flanges of the bead, feathering out onto the adjacent drywall faces.
  • The rigid metal core ensures the corner remains straight and sharp as the mud is smoothed and sanded.

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