Insu-Gard® Building and Construction Papers

Insu-Gard® Building and Construction Papers

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 Papers
Natural MG papers provide a smooth surface for lamination to foil as well as 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’s XKL® paper is a strong, lightweight sheet capable of withstanding great impact without bursting or puncturing.


  • Basis weight range 28–80#
  • MD Stretch 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 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 in contact with metal surfaces like aluminum foil.

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


Find out more about 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