DuPont™ ArmorBoard Plus Fire-Rated (FR) Structural Sheathing Returns

Precision Cut Returns for DuPont™ ArmorWall™ Systems

DuPont™ ArmorBoard Plus Fire-Rated (FR) Structural Sheathing Returns are a 1/2” Magnesium Oxide (MgO) board product utilized in punched opening applications, or where field returns vary from standard provided sizes.

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ArmorBoard Plus FR Structural Sheathing Data Sheet
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ArmorBoard with ArmorSeal Plus Coating

ArmorBoard Plus FR Structural Sheathing Returns

DuPont™ ArmorBoard Plus Fire-Rated (FR) Structural Sheathing Returns are a 1/2” Magnesium Oxide (MgO) board product utilized in punched opening applications, or where field returns vary from standard provided sizes. 

ArmorBoard Plus FR Structural Sheathing Returns are precision cut in the factory to aid in reducing installation time around punched openings or other large breaks in the wall. They offer a seamless and rapid plane transition to the structural surface while providing fire, air, and water-resistant barrier surfacing.

ArmorBoard Plus FR Structural Sheathing Returns come coated with a factory-applied air and water-resistive barrier.

ArmorBoard Plus FR Structural Sheathing Returns differ from DuPont™ ArmorWall™ Plus Fire-Rated (FR) Structural Insulated Sheathing (SIS) in that ArmorWall™ Plus FR SIS has a layer of poured polyurethane insulation fused to a 1/2″ layer of Magnesium Oxide (MgO) board, whereas ArmorBoard Plus FR Structural Sheathing Returns are only the 1/2″ layer of Magnesium Oxide (MgO) board.

ArmorBoard Plus FR Structural Sheathing Returns are offered in 8-0″ lengths, with widths to match the depth of the assembly.

Features and Benefits

Fire-Resistance

  • Utilizes a 1/2" layer of Magnesium Oxide (MgO) sheathing, providing top of the line fire-resistance, durability, and strength

Air and Water-Resistive Barrier

  • ArmorBoard Plus FR Structural Sheathing Returns arrive complete to the jobsite with a factory-applied, high quality air and water-resistive barrier
  • Coating offers industry-leading exterior adhesion performance and compatibility with tapes, sealants, and other materials

Install in Harsh Weather

  • ArmorSeal line of products can be installed and cured in harsh weather conditions, with overall proven functionality of the panel in all outdoor environments
  • ArmorBoard Plus FR Structural Sheathing Returns can remain uncovered once installed on the wall assembly for a period not to exceed 30 days

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