NO-COAT® by CertainTeed®
NO-COAT® Trim 450 Flexible Corner 100' 4/Cs
Item Number: 311691
NO-COAT® Trim 450 Flexible Corner 100' 4/Cs

CertainTeed NO-COAT® Flexible Corner provides a perfect corner by fitting every angle, every time. Applied with joint compound, it has a uniform, strong, structural bond due to its paper backing. Faced with a tight fibered, high quality paperboard and backed with a joint tape paper, it’s ideal for applying paint or texture.


  • Long peaks (spans > 10 feet)
  • Vaulted, cathedral, tray ceilings
  • Long columns or soffits
  • Inside/outside drywall corners of any length


  • Extra stiff profile provides easy application for long spans
  • Wide flange covers large gaps and poor framing
  • Built-in flexible hinge adjusts to fit any inside or outside corner angle
  • SLAM™ corner design ensures strength, durability, labor and material savings, and eliminates costly callbacks
  • 4-1/2” wide x 100’ roll
  • 1 roll per box

Technical Details:

  • Copolymer center thickness approximately: .064" (1.6 mm)
  • Copolymer edge thickness approximately: .023" (0.58 mm)
  • Total flange width: 2.25" (57.2 mm)
  • Copolymer flange width: 1.67"(42.2 mm)
  • Paperboard edge flap: .57" (14.5 mm)