Gillfab® 4037

Overview

Gillfab® 4037 is a sandwich panel made with facings of fiberglass cloth reinforced epoxy laminate and Dura-Core® II aluminum honeycomb core.

Applications

This panel is designed for use in business aircraft non-structural interiors.

Features

  • Lightweight, high strength construction
  • Good self-extinguishing characteristics
  • Good corrosion resistance

Availability

Thickness, inch (mm)0.270 (6.86)
0.280 (7.11)
0.390 (9.91)
0.410 (10.41)
0.520 (13.21)
0.530 (13.46)
Facing, face/back, inch (mm)0.010/0.010 (0.254/0.254)
0.020/0.020 (0.508/0.508)
Length, inch (mm)Typical 96 (2,438), Maximum 144 (3,658)
Width, inch (mm)Typical 48 (1,219), Maximum 68 (1,727)

Construction

Adhesive: Modified epoxy

Core: Dura-Core® II aluminum honeycomb

Facings Reinforcement: 7581 fiberglass cloth

Facings Resin System: Epoxy

Specifications

  • FAR Part 25.853, 60 second vertical flammability test

Performance Properties, Typical

Below values are typical of 4037 panels and should NOT be used as design values.

TGC Part Number4037 Type I4037 Type II4037 Type III
Thickness, inch (mm)0.270 (6.86) 0.390 (9.91) 0.520 (13.21)
Nominal Facing Thickness1, inch (mm) 0.010/0.010 (0.254/0.254)
Areal Weight, PSF (kg/m2)0.29 (1.42)0.32 (1.56)0.35 (1.71)
Long Beam Bending2 Ultimate Load, lbf (N)
Ribbon215 (955) 130 (595) 195 (885)
Transverse190 (855) 115 (525) 190 (845)
Panel Shear3 Ultimate Load, lbf (N)Ribbon345 (1540) 380 (1705) 525 (2340)
Transverse230 (1040) 300 (1330) 370 (1655)
Climbing Drum Peel4 Torque, in-lbf/3 in width (N-m/76 mm width)Ribbon50 (5.65)
Transverse60 (6.75)
FlammabilityMeets FAR 25.853 App. F Part I (a)(1)(i)

1 Each facing includes two layers of 7581 fiberglass cloth. Different facing thicknesses are available upon request.
2 Long Beam Bending was tested per ASTM D7249 using 4-point bending configuration. For Type I, 12″ length specimens were tested
using 5″ loading span and 10″ support span. For Types II and III, 24″ length specimens were tested using 10″ loading span and
20″ support span.
3 Panel Shear was tested per ASTM C393 using 3-point bending configuration. For Type I, 5″ length specimens were tested using
3″ support span. For Types II and III, 6″ in length specimens were tested using 4″ support span.
4 Climbing Drum Peel was tested per ASTM D1781.

TGC Part Number4037 Type IV4037 Type V4037 Type VI
Thickness, inch (mm)0.280 (7.11)0.410 (10.41)0.530 (13.46)
Nominal Facing Thickness1, inch (mm) 0.020/0.020 (0.508/0.508)
Areal Weight, PSF (kg/m2)0.49 (2.39) 0.52 (2.54) 0.55 (2.69)
Long Beam Bending2 Ultimate Load, lbf (N)
Ribbon410 (1820) 300 (1330) 425 (1900)
Transverse250 (1110) 275 (1225) 380 (1690)
Panel Shear3 Ultimate Load, lbf (N)Ribbon475 (2120) 550 (2445) 720 (3220)
Transverse275 (1225) 300 (1330) 400 (1775)
Climbing Drum Peel4 Torque, in-lbf/3 in width (N-m/76 mm width)Ribbon20 (2.25)
Transverse30 (3.35)
FlammabilityMeets FAR 25.853 App. F Part I (a)(1)(i)

1 Each facing includes two layers of 7581 fiberglass cloth. Different facing thicknesses are available upon request.
2 Long Beam Bending was tested per ASTM D7249 using 4-point bending configuration. For Type IV, 12″ length specimens were tested
using 5″ loading span and 10″ support span. For Types V and VI, 24″ length specimens were tested using 10″ loading span and
20″ support span.
3 Panel Shear was tested per ASTM C393 using 3-point bending configuration. For Type IV, 5″ length specimens were tested using
3″ support span. For Types V and VI, 6″ in length specimens were tested using 4″ support span.
4 Climbing Drum Peel was tested per ASTM D1781.

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