Aluminium Honeycomb 3/8″ (9.5mm) cell size, 3003 alloy, 1250 x 2500mm

£56.90£141.95 excluding VAT

3/8” (9.5mm) cell size aluminium honeycomb.

  • Foil thickness 70µm, 3003 Alloy.
  • Perforated, Corrosion treated and Unexpanded.
  • Available in 10, 15, 20mm thicknesses.
  • The slice will expand to nominal dimensions of 1250 x 2500mm.
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Corex Honeycomb is recognised as a product which possesses an excellent strength to weight ratio. It can be used when rigid and lightweight properties are required. Aluminium honeycomb is used in a variety of different industries such as Marine, Rail, Aerospace, Construction, Architecture and Wind Turbines. It also has more specialised uses such as air flow straighteners, clean room panels, sacrificial laser cutting beds, ventilation and automotive applications.

Our 3/8” cell size is the most popular honeycomb type with panel manufacturing customers. Its medium cell size means it has the better of the two principal characteristics of aluminium honeycomb – high strength coupled with lightweight mass. Aluminium honeycomb is designed to sit between two skins to create a sandwich panel. In creating distance between these two skins and preventing them from moving, huge mechanical advantage is gained in the resulting rigidity of the panel but with a minimal increase in weight. We offer a variety of thicknesses and all slices expand to 1250 x 2500mm.

L and W directions may be marginally larger. L and W directions will never be smaller than stated. All our slices have been cut with a thickness tolerance of +/-0.25mm.


The Corex Honeycomb range available online is supplied in unexpanded form as cut slices. We offer it in this form as the honeycomb is much smaller and therefore more economical and easier to transport. It is also less likely to be damaged in transit.
The slices are available to buy from stock and will expand to nominal dimensions of 1250 x 2500mm.

Please note that L and W dimensions may be marginally larger. L and W dimensions will never be smaller than stated.

For expanded slices contact our sales team.


Most of the honeycomb types supplied online are perforated. During the manufacturing process the aluminium foil is run over a needle roller so that tiny holes are punched into the foil. This allows fumes from adhesives to vent from the honeycomb during the panel manufacturing process.

For non-perforated honeycomb contact our sales team.

Corrosive Treated

Corex supplies corrosion treated aluminium honeycomb. A surface coating is applied to the foil in house that helps prevent the honeycomb from corroding. It also improves the bonding properties of our core.

For other slice thicknesses, 5052 alloy, alternative cell sizes, and expanded honeycomb sheets please fill out our custom request form or contact one of our sales representatives to discuss.

Additional information



Cell Size

3/8" (9.5mm)

Nominal Foil Density









10mm, 15mm, 20mm, 30mm

Thickness Tolerance

+/- 0.25mm


Corrosion Treated


L and W dimensions may be marginally larger. L and W dimensions will never be smaller than stated.