Dupont Nomex Over-Expanded Honeycomb Core Material


DuPont™ Nomex Over-Expanded Honeycomb Core Material 


*Note: Oversized Shipping Charges May Apply.

Due to the large size of these panels shipping weight is based on dimensional weight, not actual weight which results in a shipping weight that is greater than the actual weight of the product.

This material is available in 0.125", 0.1875", 0.25", 0.375" and 0.5"

Key Features

■ High mechanical strength at low densities.
■ Outstanding resistance to corrosive attack by chemicals.
■ Excellent resistance to impact damage and moisture.
■ Fire retardant and self extinguishing.
■ Low smoke and toxic gas emission.
■ Highly resistant to fungal growth.
■ Good dielectric properties, transparent to radio and radar waves.
■ Easily cut and machined to shape and can be heat formed.
■ Low thermal conductivity.
■ Compatible with most lightweight reinforced composite materials, providing a good bonding surface for Redux® adhesives and self adhesive prepreg systems.
■ Easy single curvature forming of over-expanded honeycomb.


For more than 30 years, the transportation industry has embraced honeycomb composite made with DuPont™ Nomex for its excellent strength-to-weight ratio, which helps to provide vital cost-effective benefits like energy savings and payload increases. Stiff, thin Nomex sheet structures are used to help make strong, yet lightweight, honeycomb sandwich composite found in aircraft parts such flooring panels, interior walls, storage bins, exterior control surfaces, engine nacelles, and helicopter blades and tail booms. Nomex honeycomb composites are also used in the construction of boats to help provide buoyancy that enhances speed.

Over-Expanded Aramid Honeycomb is a lightweight, high strength, nonmetallic honeycomb core material manufactured from aramid fiber paper with the rectangular cell shape. The over-expanded cell shape allows the core to flex in one direction easily, making it suitable for forming simple curves. After the honeycomb is formed, it is coated with a heat resistant phenolic resin to increase its strength and thermal properties. 

Aramid Honeycomb exhibits a high strength-to-weight ratio, exceptional stiffness, and is very bondable. It is becoming increasingly used in high-performance, non-aerospace components due to its high mechanical properties, low density and good long-term stability. Aramid Honeycomb is ideal for any structure which requires corrosion resistance and thermal insulation.