Insu-Gard® Building and Construction

Insu-Gard® Building and Construction

No flaming time or afterglow
Controlled char length to 4.5 inches
Sizing to enhance adhesive bonding
Bleached, natural and colored papers available
Insu-Gard® Building and Construction
Natural MG Papers provide a smooth surface for lamination to foil or in Foil/Scrim/Kraft (FSK) Building and Construction applications.

Also referred to as XKL papers, extensible kraft papers provide maximum strength and stretch properties for the most demanding converting applications. Used in a variety of markets and applications, Ahlstrom-Munksjö’s XKL paper is a strong, lightweight sheet capable of withstanding great impact without bursting or puncturing.


  • Basis weight range 28-80#
  • MD Stretch from 6-8%
  • MD Stretch 10-12% for heavyweight applications (80#)


Foil/Scrim Kraft (FSK) facing papers are utilized as a vapor barrier wrap for ducts and pipes. Ahlstrom-Munksjö offers both bleached and natural options available in machine finished and machine glazed surfaces.


Machine glazed papers offer an ideal smooth surface for foil lamination. With basis weights as low as 11.5# and as high as 50#, we offer the widest breadth of papers in the industry.


Our papers incorporate treatments that minimize corrosion when coming in contact with metal surfaces like aluminum foil.

Paper Finishes Basis Weight Fiber Applications
MG, MF, XKL 19-164 trulyNatural®  Insulation, Flame Resistant, Electrical


Find out more about our Flame-Gard®, trulyNatural®, Mold-Shield™ and other supporting technologies here.



This product and more participate in transitioning packaging ƒrom Plastic to Purpose.

Learn more about our philosophy and our webinars regarding the possibility of fiber-based solutions here


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