Skip to main content


Strait-Flex® Tuff-Tape

Designed for strength and speed and as a paper tape replacement

Used in areas where humidity causes paper tape to fail.

Application(s): Drywall

Tuff-Tape is ideal for flat seams and inside corners and where paper drywall tape has failed. For novices, Tuff-Tape is easier to apply than paper tapes. Tuff-Tape cuts easily with a scissors or utility knife, is applied with all-purpose joint compound, and will not rust. Extremely strong, will not fuzz-up when sanding, and stronger than paper and mesh tape.

  • Inside corners and flat seams
  • Use in areas where humidity causes paper tape to fail and when strength and speed is required
  • Two times stronger than paper tape
  • Resists blisters, tears and common cracking problems


  • Run your taping knife over the surface of the drywall and remove any high spots. If the knife hits a screw head, set the screw a little deeper.
  • Measure wall height and subtract 1/2”. Measure and cut Tuff-Tape using a scissors or utility knife.
  • Fold Tuff-Tape in half at center crease with print size facing out.  Most professionals prefer to cut the ends of Tuff-Tape at a 45º angle.
  • For inside corners, fold less than desired angle with print side toward wall.
  • Properly mix all-purpose compound per manufacturer’s directions. If applying Tuff-Tape over painted surfaces, add Strait-Flex’s Super-Bond to enhance bondability.
  • With a 4” or 5” taping knife, apply a smooth, liberal coat of all-purpose compound to corner.
  • Press Tuff-Tape 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 Tuff-Tape.  Immediately apply a light skim coat of compound over surface of Tuff-Tape. Wipe down tight and smooth. Let dry completely over several hours or overnight.
  • Use taping knife to detect and remove any high spots or dried clumps of compound.
  • With a 6” taping knife, apply your final coat of compound feathering the compound beyond previous coat. For inside corners, a very light coat of compound is all that’s needed. Lightweight compound used in this step makes  sanding much easier.  Let dry completely over several hours or overnight.
  • Sand lightly with 120 grit sandpaper. Tuff-Tape will not fuzz-up like paper or mesh tapes.

Code Approvals & Performance Standards


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
TT-100 Strait-Flex® Tuff-Tape

ClarkDietrich SubmittalPro®

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