Gillfab® 5120

Gillfab® 5120 image


Gillfab® 5120 is a very thin sandwich panel made with aluminum skins and aluminum honeycomb.


The panel is designed for flooring, cabinetry and instrument panels in general aviation aircraft. The panel is more rigid than plate aluminum of the same thickness but weighs 50% less.


  • Lighter weight, lower cost and stronger than traditional aluminum sheeting
  • Can be routed, sawed and drilled like sheet aluminum
  • Good bolted joint pull-out. Inserts not required
  • Adhesive not affected by aircraft lubricants, cleaning fluids or fuel
  • Panel can withstand 190°F for long term and 300°F for short term without marked deterioration of physical and/or mechanical properties


Thickness, inch (mm)0.091 (2.31), 0.125 (3.18)
Facing, face/back, inch (mm)0.020/0.011 (0.508/0.279)
0.020/0.020 (0.508/0.508)
Length, inch (mm)Typical 120 (3,048), Maximum 144 (3,658)
Width, inch (mm)Typical 48 (1,219), Maximum 48 (1,219)
HoneycombLight and medium aluminum honeycomb core


Adhesive: Epoxy film adhesive meeting requirements of Mil-A-25463

Core: 5052N aluminum honeycomb

Facings: 2024-T3 aluminum sheet with AnoGrip® anodize


  • FAR 25.853 Flammability

Performance Properties, Typical

TGC Part Number5120
Panel Weight, psf (kg/m2)0.72 (3.52)
Panel Thickness, inch (mm)0.126 (3.20)
Skin Thickness, face/back, inch (mm)0.020/0.020 (0.508/0.508)
Flatwise compression, psi (Mpa)1,012 (6.98)
Climbing Drum Peel, in-lbs/3″ width (N-m/76mm width)Face60 (6.78)
Back39 (4.41)
FlammabilityMeets FAR 25.853 & 855 App F Part I (a)(1)(I)

Figures shown reflect typical values and should not be used as design specifications.

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