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.125" x 48" x 48" Fiberglass PW3/Honeycomb Panel

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$418.30 $502.00
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SKU: XS-SP-NH125-FG3-8



ACP’s Fiberglass 3 Ply / Honeycomb Sandwich Panels are manufactured by bonding two layers of 8 oz. 8-harness satin weave fiberglass prepreg to each side of a .125” thick, 3/16” cell, 2 PCF aramid honeycomb core. The increased layers of fiberglass result in a more rigid structure when compared to the single ply. They are cured with high temperature and under pressure, resulting in fully consolidated fiberglass skins that are completely bonded to the aramid honeycomb core. They are ideal for applications requiring flat, lightweight and rigid specifications.

Separating the fiberglass skins with an aramid honeycomb core delivers greater strength properties than those of the skins alone. The fiberglass skins offer high strength, moderate tensile strength and compressive strength, dimensional stability, design flexibility and excellent electrical resistivity. By using a self-adhesive fiberglass prepreg, the cells of the honeycomb core will not fill with resin, thereby insuring the constructed panel will not retain excess resin weight.

The lightweight, high strength aramid honeycomb delivers higher compressive strength and lower densities when compared to our balsa and foam cores. The aramid honeycomb core is manufactured with high bondable properties to insure that the structural integrity of the panel remains intact. To increase the stiffness of the constructed panel, a thicker core can be used without substantially increasing the weight and cost of the final product.


Physical Properties
Core Thickness:
Ply Count:
3 ply
Total Thickness (TPT):
0.149 +/- 10"
Core Material:
3/16" Cell, 2 PCF Standard Cell Aramid Honeycomb
Skin Material:
Fiberglass Prepreg Style 7781
Prepreg Resin Content:

The below technical information is for the stand alone raw materials, not the constructed panel.

Prepreg Neat Resin Properties
Specific Gravity:
Tg dry:
Moisture Absorption:
Linear CTE:
293 x 105/in/in/°F
Tensile Strength:
11.6 ksi
Tensile Modulus:
0.47 msi
Tensile Strain:
Fracture Toughness:
1.50 ksi √in
Strain Energy Release Rate:
4.18 in-lb/in2
Standard Cell Aramid Honeycomb Properties
Cell Size:
Bear-117 psi, Stabilized 130 psi
L-Shear Strength:
72 psi
W-Shear Strength:
40 psi

Please note: All data to be used as a guide only; not a specification.


  • If delamination occurs skins may be re-bonded using any structural adhesive, such as slow set cyanoacrylate (CA) glue or 5 minute epoxy adhesive.
  • Sandwich panels can be cut with a cut off wheel or a Tungsten Carbide Saber Saw. Do not cut with a band saw.
  • For specialized panel inserts, fasteners and latches contact The Young Engineers. As an industry-leading designer and manufacturer of hardware, their primary focus is on fasteners for honeycomb panels and composite materials.
How to Guides

Cut & Fold Technique


Need something different? We've got you covered.

As a leading manufacturer of composite structures you can rely on us to provide rapid, cost-effective and high-quality solutions to meet and exceed your project requirements.

We MAKE it.

Our design and manufacturing team can work with you to fabricate custom plates, sheets and laminates. Options include:

  • Fiber Selection: Carbon Fiber, Fiberglass, Kevlar®, Other
  • Skin Thickness
  • Core Selection: Honeycomb (aluminum, plastic, Nomex) and Foam (polyurethane, PVC, ABS & others)
  • Core Thickness
  • Layup/Construction
  • Surface Finish
  • Sizes up to 60" x 120"*

*ACP has a maximum work envelope of 60" x 120". Available options are contingent on tooling and material availability. KEVLAR® is a registered trademark of E.I. du Pont de Nemours and Company and is used with permission.


We can tailor our stock products to meet your needs by offering the following services:

  • CNC Machining
  • Cutting
  • Edge Closeouts
  • Rebate Edges
  • Hard Fix Points
  • Fixtures
  • Counter Boring
  • Bonding
  • Joining
  • Assembly
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Due to size restrictions, 48" x 48" sizes require custom packaging and may have to ship via freight services. A $30.00 handling fee will apply and will automatically be added to the order. Final shipping charges will not be available at the time of ordering. A quote can be requested or shipping charges can be automatically billed at the time of shipment.



Products sold as a clearance may be excess inventory that does not meet the stringent specifications of medical or aerospace applications, have blemishes and/or other imperfections as noted in the product descriptions. These items are sold "As Is", are nonrefundable and will not be backordered. If an ordered quantity cannot be fulfilled, we will ship available on hand quantities and automatically cancel any remaining balance.

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