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OS-300

Quick Overview

Designed for square, low-fill outside 90º corners
OS-300 - Case of 50-8' Sticks, 400lf
$126.86
OS-300 - Case of 50-9' Sticks, 450lf
$142.71
OS-300 - Case of 50-10' Sticks, 500lf
$158.57
OS-300 - Case of 50-12' Sticks, 600lf
$190.28

Availability: Out of stock

[ Overview ]

3”w (76mm)

COLOR CODE BLACK

OS-300, a paper-faced composite corner bead from Strait-Flex, beautifully finishes outside 90º corners and is the most cost-effective outside corner bead on the market. This 3” 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. OS-300 is backed by Strait-Flex’s patented composite material creating an incredibly strong corner.

  • Vertical or horizontal outside 90º corners.  
  • 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.

[ Installation ]

Cut Strait-Flex OS-300 to measured length.

For vertical corners, cut 1/4” short of floor.

Apply all-purpose joint compound with Mud-Pro2 (compound applicator) to corner bead; or apply compound to outside corners with a 5” or 6” taping knife.

Press corner bead into wet compound by hand or use Strait-Flex’s OS-300 Rolling Tool for fastest results.

Adjust if necessary to create a straight line.

Wipe down edges and let dry.

Apply final coat, let dry, and sand.

REPAIRS OVER PAINTED SURFACES

Strait-Flex recommends the use of Strait-Flex Super-Bond or latex paint, mixed with all-purpose joint compound to enhance bondability.

Additional Information

Bullet Points No
Instructions for Use

Cut Strait-Flex OS-300 to measured length.

For vertical corners, cut 1/4” short of floor.

Apply all-purpose joint compound with Mud-Pro2 (compound applicator) to corner bead; or apply compound to outside corners with a 5” or 6” taping knife.

Press corner bead into wet compound by hand or use Strait-Flex’s OS-300 Rolling Tool for fastest results.

Adjust if necessary to create a straight line.

Wipe down edges and let dry.

Apply final coat, let dry, and sand.

REPAIRS OVER PAINTED SURFACES

Strait-Flex recommends the use of Strait-Flex Super-Bond or latex paint, mixed with all-purpose joint compound to enhance bondability.

Size 3”w (76mm)
Instructions PDF No
Submittal PDF No
Testimonial PDF No
Warranty PDF No
Bulk Order Page URL No

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