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Strait-Flex® IS-300

DESIGNED FOR INSIDE 90° CORNERS, WHERE LARGE FRAMING IRREGULARITIES NEED TO BE OVERCOME

IS-300 is designed for 90-degree inside corners where speed and strength are needed and/or where large framing irregularities need to be overcome. 

Application(s): Drywall

IS-300 diamond-punched paper edging allows for easier feathering, faster drying, and high bonding strength, which assures even lay-down of the paper, providing maximum adhesion without rippling or blistering.  Apply with all-purpose joint-compound.

  • Vertical or horizontal inside 90° corners
  • Clean installation
  • Composite PVC provides a tough, durable corner
  • Perfect corners without paper fuzz-up during finishing and sanding

Installation

  • Measure wall height and subtract 1/2”. Measure and cut IS-300 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 IS-300 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 IS-300. 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. IS-300 will not fuzz-up like paper or mesh tapes.

REPAIRS OVER PAINTED SURFACES

ClarkDietrich recommends the use of Strait-Flex Super-Bond mixed with all-purpose joint compound to enhance bondability.

Code Approvals & Performance 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.

Product Submittal Sheets

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

Product Code Description
IS-300 Strait-Flex IS-300

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