Gillfab® 4123

Gillfab 4123 image


Gillfab® 4123 is a low smoke sandwich panel made from woven fiberglass cloth reinforced phenolic facings bonded Gillcore® HD honeycomb core.


The panel is designed for use as flooring panels in the main deck on cargo compartment and freighter for Airbus Industrie A321/A330/A340/A300/A310/A300-600 aircrafts.


  • High impact strength
  • Low smoke emission
  • Corrosion resistant
  • Light weight
  • Fire resistant
  • Service temperature: to 180°F (82°C)


Thickness, inch (mm)0.374 (9.5)
Length and Width, inch (mm)Typical 48 x 144 (1,219 x 3,658)
Maximum 60 x 144 (1,524 x 3,658)
Facing, face/back, inch (mm)0.030/0.020 (0.762/0.508)


Adhesive: Epoxy

Core: Meta-aramid

Facings Reinforcement: Woven glass cloth

Facings Resin System: Phenolic


  • AI Technical Specification No. 5360 M1M 000500, Issue 5 (MDC2)
  • FAR 25.853 – fire resistant
  • ABD 0031 – Smoke density, toxicity, flammability, and burn through

Performance Properties, Typical

The following tests are run in accordance with 5360 M1M 000500.

TGC Part Number4123-374
Weight, psf (kg/m2)0.78 (3.80)
Warpage, in/ft (mm/m)0 (0)
Long Beam Bending, lbs (N): Ribbon (L) Direction504 (2,242)
Long Beam Bending, lbs (N): Transverse (W) Direction464 (2,062)
Deflection @ 100 lbs, inch (@445N, mm): Ribbon (L) Direction0.55 (13.84)
Deflection @ 100 lbs, inch (@445N, mm):Transverse (W) Direction0.56 (14.09)
Panel Shear, lbs (N)964 (4,288)
Drum Peel, in-lbs/3″ width (N/76mm width)73 (323)
Stabilized Core Compression, psi (N/mm2)1,821 (12.55)
Impact Strength, ft-lbs (Nm)8.45 (11.46)
In-plane Shear, lbs/in (N/mm)782 (137)
Insert Shear, lbs (N)1,921 (8,546)
Indentation, lbs (N)450 (2,002)
FlammabilityMeet FAR 25.853 & 855 App F Part I & III
Food Roller Cart, cycles (lbs/wheel – kgs/wheel)No depression at 120k (126 – 57)
No depression at 35k (165 – 75)

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

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