HexWeb® A1 and A10 High strength aramid honeycomb Product Data Description Non-metallic honeycombs are manufactured from high temperature resistant aramid paper formed into a honeycomb structure, and coated with a phenolic resin. The combination of aramid paper and phenolic resin gives types A1 and A10 their superior strength, toughness and chemical resistance. The honeycomb cell shape is normally hexagonal for optimum mechanical properties. It can also be overexpanded to produce a rectangular cell shape and provide improved drapeability for the production of curved parts. 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. 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. Typical applications Aerospace: Helicopter blades, fairings, interior panels, flooring, control surfaces, flaps, engine nacelles. HexWeb A1 honeycomb is qualified to all major aerospace specifications. Marine and ground transportation, interior panels, flooring, bulkheads, hatches. Racing boat shells. High performance car chassis and body panels. Precision optical equipment. Desiccant and filtration systems. Radar reflectors, covers and emitters. HexWeb A10 honeycomb is recommended for all industrial applications.

Typical Mechanical Properties Stabilised Compression Honeycomb Designation Plate Shear *Highlighted products are also available as A10 honeycomb. Typical A10 performance levels are similar to A1 but may be subject to slightly lower minima due to a less stringent manufacturing specification.

High strength aramid honeycomb Material Properties Chemical Resistance HexWeb A1 and A10 show excellent resistance to chemical attack, with strength reductions of less than 10% following immersion in engine oil, hydraulic oil, aircraft fuels and distilled water. Dielectric Constant At 9375 MHz, the dielectric constant for non-metallic honeycomb is 1.08 ± 0.05 and the loss tangent 0.005 maximum. Fire Properties HexWeb A1 is rated as self extinguishing and has low heat generation, smoke density and toxic gas emissions when tested to FAR 25.853 and ATS 1000. Forming The use of over-expanded (OX)...

To specify the material you require, the material type and dimensions must be defined, e.g. Material type: HexWeb A1-48-5 OX cell shape cell size Lor ribbon W or direction Customer specified dimension of expansion thickness HexWeb A1 honeycomb is qualified to most major aerospace specifications Requirements for specification must be defined on the order. HexWeb A1 and A10 honeycombs are equivalent to HRH10 and HRH78 supplied from our U.S. and Belgium facilities. Handling and Safety Precautions The usual precautions when handling fine fibrous materials should be observed. The use of clean disposable...