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OS-400

Description

OS-400 is specifically designed for double 5/8” drywall applications and outside 90º corners where there are large drywall irregularities. OS-400, a paper-faced composite corner bead from Strait-Flex, beautifully finishes outside 90º corners and is the largest outside corner bead on the market. This 4” corner bead applies with all-purpose compound and features a pre-finished laminated nose ensuring a clean sharp corner. The laminated nose eliminates the risk of damage from a taping knife, will not shrink, and will not fuzz up during sanding. The bead’s outer edge features a diamond punch pattern for easier feathering, faster drying, and the highest bonding strength. The backing of OS-400 is Strait-Flex’s patented composite material creating an incredibly strong corner.


  • Double 5/8” drywall applications and outside 90º corners where there are large drywall irregularities. 

  • Diamond-punched 94 lb. paper edging allows for easier feathering, faster drying, and the highest bonding strength. Also guarantees an even lay-down of the paper, providing maximum adhesion with no rippling or blistering.

  • Clean installation. 

  • Composite backing provides a tough, durable corner with no rust.

  • PUR-laminated nose resists dents and ensures perfect corners without paper fuzz-up during finishing and sanding.

Size: 4”w (102mm)
COLOR CODE BLACK