Strait-Flex® OS-400

DESIGNED for outside 90° corners where large voids and irregularities occur

Diamond-punched paper edging allows for easier feathering, faster drying, and the highest bonding strength.

Found In:
Interior Finishing > Corners
Application(s): Drywall
Description

OS-400 can also be used on double 5/8" drywall applications.  The diamond-punched 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.  Apply with all-purpose joint-compound.

  • Double 5/8" drywall applications and outside 90° corners where there are large drywall irregularities
  • Clean installation
  • Composite backing provides a tough, durable corner with no rust
  • Nose resists dents and ensures perfect corners without paper fuzz-up during finishing and sanding

Product Data & Ordering Information

Product code Width Length Wholesale Case
Pcs/Case Pack Cases/Pallet
OS400-8 4" 8' 50pcs (400 lf) 32
OS400-9 9' 50pcs (450 lf) 32
OS400-10 10' 50pcs (500 lf) 32
OS400-12 12' 50pcs (600 lf) 32
Installation

Installation

  • Measure wall height and subtract 1/2”. Measure and cut OS-400 using a scissors or utility knife.
  • With a 4” or 5” taping knife, apply a smooth, liberal coat of all-purpose compound to corner.
  • Press OS-400 into the wet compound. Adjust if necessary to create a straight line.
  • Wipe down tight with taping knife using a little additional pressure on the outer edges of OS-400. Immediately apply a light skim coat of compound over surface. Wipe down tight and smooth. Let dry completely over several hours or overnight.
  • With a 6” or 8” taping knife, apply your final coat of compound feathering the compound beyond previous coat. Let dry completely over several hours or overnight
  • Sand lightly with 120 grit sandpaper. OS-400 will not fuzz-up like paper or mesh tapes.
Tools: Code & SDS Architectural Specs AIA / CEU
Resources

ASTM & Code Standards:

 

Storage:

All stored materials shall be kept dry. Materials shall be stacked off the ground, supported on a level platform, and protected from weather and moisture.

Submittals

Product Submittal Sheets

Click the below Product Code to view Submittal/Tech Datasheet.

Product Code Description
OS-400 Strait-Flex OS-400

ClarkDietrich SubmittalPro®

Submittal sheets for the exact product you're looking for can be created by using ClarkDietrich's SubmittalPro® Product Submittal System.