Commercial grade aramid paper reinforced phenolic (Nomex®) honeycomb core.

Gillcore® HA is a commercial grade Nomex aramid fiber reinforced honeycomb which is coated with heat resistant phenolic resin. Gillcore® HA is an economical alternative of Gillcore® HD for non-aerospace applications. A wide selection of HA honeycomb types, including different cell sizes, cell geometries, paper thicknesses and densities are available.


Meta-Aramid Nomex paper, commercial grade



Description Example

HA – 1/8 – 3.0 – OX


HA: designates aerospace grade Nomex aramid fiber


1/8 (i.e.): cell size: ¼, 1/8, 3/16 inches


3.0 (i.e.): nominal density: 2.0, 3.0, 4.0, 8.0lb/ft3


OX (i.e.): over expanded cells


HA132, HA182, HA343, HA422, HA332O


Hexagonal Core (ribbon dimension as block width)

Hexagonal Core (ribbon dimension as block length)

Overexpanded Core

L (Ribbon dimension)

Typical 48”




Maximum 65”

Maximum 96”

Maximum 50”

W (Dimension normal to ribbon)

Typical 96”




Maximum 144”

Maximum 48”

Maximum 144”


0.200 – 34”

0.200 – 34”

0.200 – 34”

Structural Orientation







Plate Shear:

L Direction



W Direction

Safety Datasheet


·         Physical state: Solid

·         Appearance: Flat Sheets and blocks

·         Color: brown

·         Odor: None

·         Melting point: No data available

·         Freezing point: No data available

·         Boiling point: No data available

·         Solubility: Unknown

·         Reactivity: Not reactive under normal use and conditions

·         Chemical stability: Product is stable

·         Possibility of hazardous reactions: Hazardous polymerization will not occur

·         Incompatible materials: Strong oxidizing agents, strong acids and bases, especially oxalic and hydrofluoric acid and acyl halides

·         Hazardous decomposition products: Toxic fumes and gases, carbon dioxide, carbon monoxide, hydrogen cyanide, oxides of nitrogen and other toxic and irritation gases can be produced depending on condition of combustion

Technical Datasheet


·         High strength to weight ratio

·         Corrosion resistance

·         Good fatigue and impact resistance

·         Fire resistant (self-extinguishing)

·         Good dielectric properties

·         Good thermal stability

·         Good formability for curve forming

·         Good thermal and electrical insulating properties


·         Sports and leisure industries such as surfboards, pleasure boats, skis and auto racing bodies

·         Transportation industries such as train car panels and ground transportation structures

·         Special projects for marine ground antennas, navy joiner panels and military shelters


·         AR 25.853a - fire resistance