 Resources
Frequently Asked Questions
Composite Materials
What are composite materials?
Products made by combining two or more dissimilar materials such as fibers and resins to create a product with exceptional structural properties not present in the original materials (see Glossary).
Where are composites used?
The use of composites was pioneered by the aerospace industry, which sought high performance lightweight alternatives to traditional materials. The benefits were soon adopted by ground transportation industries (marine, rail and automotive) and for sports goods.
Why are composites used?
Composites are used in place of conventional materials such as metal and wood to achieve sophisticated designs with weight-savings and other performance advantages. Although composites are often used to replace metal or wood in existing designs, the maximum benefits are obtained in components that have been designed for composites.
Honeycomb
What is Honeycomb?
Honeycomb is a lightweight core material, available in a wide range of materials and cell configurations, supplied by Hexcel in sheet form, in blocks for expansion by the customer or as Special Process components.
What is Engineered Core?
The forming, shaping, machining or bonding of sheets or blocks of honeycomb into profiled and complex shapes, for use as semi-finished components in the fabrication of composite parts and structures. Hexcel supplies customers with high quality components with precise dimensional tolerances which eliminate subsequent manufacturing stages and processes.
What types of honeycomb does Hexcel manufacture?
Hexcel has manufactured honeycomb for over 50 years and offers the widest range of materials and configurations in the industry.
Where can I purchase small amounts of Aluminum and Nomex honeycomb?
Hexcel has a number of distributors worldwide for small quantities of honeycomb. Please contact your local customer service office for details.
Where does Hexcel manufacture honeycomb?
Hexcel manufactures Honeycomb in Duxford, UK; Welkenraedt, Belgium; and Casa Grande, USA.
How much does honeycomb cost?
Honeycomb prices range from $1 to $500 per board foot, depending on the web material, resin, cell size and density.
How is honeycomb supplied?
Honeycomb is supplied pre-expanded in sheet form or in block form for expansion by the customer.
How do I order honeycomb?
Please contact your local customer service center. It would help us to process your order more quickly if the following information is supplied:
Material type
Cell size
Sheet size (length, width, thickness)
Quantity
For more information on honeycomb selection please consult the Hexcel Honeycomb Attributes and Properties manual.
What information should I provide when requesting a quotation for HexWeb Honeycombs? (ie. core material only, supplied without skins. If honeycomb sandwich panels are required, please refer to the Panels section)
Please state: - Core material, eg. Aluminium with grade 3003, 5052, 5056; Aramid paper/Nomex (from DuPont); glass, carbon, etc.
- Cell size
- Required density
- Any special requirements, eg.:
Perforated (aluminium only)
Unexpanded (HOBE) - aluminium only
Slotted cells
Dimensional tolerances
- Application
- Mechanical performance requirements
- Dimensions required:
Length* x Width x Thickness
* always in the ribbon direction, ie. parallel to the flow of the foil Please note we may offer our nearest standard honeycomb sheet size to meet your size requirements.
Additional Information
When requesting a quotation please provide a contact name, telephone number and e-mail address in case additional information is required. If appropriate, please state the full material control specification, otherwise our offer will be based on releasing to our In-House standard.
Also advise:
- Invoice and delivery addresses
- Required delivery date and quantity for the order, or first drop.
- Total annual quantity and duration.
- Quantity per order with, if applicable, scheduled drops.
Panels
What is a sandwich panel?
A sandwich panel comprises a core material (eg. honeycomb) sandwiched between two facing skins. Hexcel's sandwich panels comprise of a sheet of honeycomb core which is sandwiched between sheets of Aluminum or cured Prepreg laminates to provide an exceptionally stiff yet lightweight board. Hexcel has two ranges of panels. Fibrelam is a range of qualified aircraft flooring and interior panels, while Hexlite is a range of structural and interior panels for trains, ships and other industrial applications.
What is the minimum order quantity for sandwich panels?
For Fibrelam Aerospace panels the minimum order quantity is 6 panels.
For Hexlite industrial panels orders are accepted for 10 panels and above.
Where can I purchase smaller quantities of panels?
In Europe: for Fibrelam aerospace panels contact Aerocontracts
for Hexlite industrial panels contact B&K resins.
In the US: contact Aerocontracts Inc. and Texas Almet
Contact details needed
How much do panels cost?
The price depends on the materials used and the quantities required. However, as a rough guideline, price per square metre ranges from $45 to $400.
Does Hexcel only supply flat panels?
No. We can supply many finished items. For example , we manufacture fully-finished drop-in floor panels for many aircraft and also fabricate interiors for rail and marine applications. Send us a sketch or drawing with full details by post, fax or e-mail and we will either offer you a quotation or, if it's outside our scope of work, recommend a suitable supplier.
What are the standard dimensions of Hexcel sandwich panels?
There are three standard lengths - 3658mm, 3048mm and 2440mm (equating to 12 ft, 10ft and 8ft). The standard width is 1220 (4ft). Thickness can be from 3mm upwards. We are happy to consider other dimensions for significant volumes.
To which specifications do you supply?
Please see Fibrelam Qualified Products or the Hexlite Selector Guide.
How do I obtain a quotation?
Requests for quotations may be sent by post, fax or e-mail. If you are unsure of your requirements, our Customer Service or Technical Support departments will be happy to assist.
How do I order panels?
If you have already received a quotation, you may place an order with your local Customer Service center, by post, fax or e-mail. Please provide the quotation reference number with your order.
What information should I provide when requesting a quotation for Hexcel Panels?
For Flat Panels (Hexcel honeycomb bonded between two facing skins) please provide:
- Panel dimensions: Length x Width x Thickness (define thickness as either the core or the bonded panel with skins).
- Any special dimensional tolerances
- Panel construction including:
-- Fibrelam or Hexlite designation (if known)
-- Skin type and thickness (including number of plies if a prepreg)
-- Adhesive (if known)
-- Honeycomb core type and thickness
For special process drop in flooring, shaped or 3D panels please provide as much information as possible. We may require a sketch or drawing of the component.
Additional Information When requesting a quotation please provide a contact name, telephone number and e-mail address in case additional information is required. If appropriate, please state the full material control specification, otherwise our offer will be based on releasing to our In-House standard.
Also advise:
- Invoice and delivery addresses
- Required delivery date and quantity for the order, or first drop.
- Total annual quantity and duration.
- Quantity per order with, if applicable, scheduled drops.
Prepregs
What is Prepreg?
A composite material made from combining high performance reinforcement fibers or fabrics with a thermoset or thermoplastic resin matrix. When cured under high temperature and pressure, exceptional structural properties are achieved. (See Glossary)
What are Prepregs used for?
Prepregs are used for a wide range of applications requiring high strength and stiffness combined with low weight. The use of Prepreg was pioneered by the aerospace industry, closely followed by developments for sports goods, performance boats, F1 and Indy cars. Recent innovations have included for train bogies and wind turbine blades.
What types of Prepreg does Hexcel manufacture?
Hexcel Prepregs are based on four main matrix types: epoxy, phenolic, bismaleimide and cyanate ester. Reinforcements include carbon, glass, aramid and hybrid fibers in both woven and unidirectional form.
How do I chose the best Prepreg for my application?
Selection is governed by the achievable cure temperature and the maximum service temperature of the component.
Consult the Prepreg selector guide and Hexcel's Technical Support department for advice on Prepreg selection.
Please note that Hexcel's lowest temperature curing Prepreg is currently M34, which cures at 65 degrees C (for 16 hours) or 75 degrees C for 8 hours.
How do I obtain a quotation for Prepregs?
Please contact your local Customer Service Center.
How do I order Prepreg?
Please contact your local Customer Service center. It would help us to process your order more quickly if you supplied the following information:
- Designation
- Quantity
- Width
- Specifications
How do I obtain samples?
Please contact your local Customer Service Center.
What information should I provide when requesting a quotation for Hexcel Prepregs?
Please provide:
- Product designation
- Selected matrix (from selector guide or data sheet)
- Resin Content
- Reinforcement type (eg. aramid, glass, carbon, hybrid)
- State if reinforcement is woven or unidirectional
- For woven reinforcements, advise weave style, fabric weight and grade of fibre
- For unidirectional reinforcements, advise fibre weight or cured thickness
We will advise on standard roll size and product width.
Additional Information:
When requesting a quotation please provide a contact name, telephone number and e-mail address in case additional information is required. If appropriate, please state the full material control specification, otherwise our offer will be based on releasing to our In-House standard.
Also advise:
- Invoice and delivery addresses.
- Required delivery date and quantity for the order, or first drop.
- Total annual quantity and duration.
- Quantity per order with, if applicable, scheduled drops.
Adhesives
What is a film adhesive??
A thermoset resin (eg. epoxy, phenolic, BMI) that is supplied in film form, and cured under heat and pressure to bond a wide range of composite, metallic and honeycomb surfaces. Hexcel markets its film adhesives under the Redux trademark.
Why are film adhesives used?
See Redux Bonding Technology.
How are film adhesives used?
See Redux Bonding Technology.
How do I obtain a quotation for Redux?
Please contact your local Customer Service Center.
What information should I provide to request a quotation for Primers (surface pre-treatment protection solutions)?
Please provide
- Product designation (or state which adhesive will be used to enable us to recommend the most appropriate product).
Additional Information:
When requesting a quotation please provide a contact name, telephone number and e-mail address in case additional information is required. If appropriate, please state the full material control specification, otherwise our offer will be based on releasing to our In-House standard.
Also advise:
- Invoice and delivery addresses
- Required delivery date and quantity for the order, or first drop.
- Total annual quantity and duration.
- Quantity per order with, if applicable, scheduled drops.
Modipur Polyurethanes
What are Modipur Polyurethanes (PUR)?
Modipur Polyurethanes are the result of a reaction of combining two-component thermoset systems. Usually processed in a match-mould set-up, PUR is supplied in drums of 210kg, 1 ton containers or bulk transport. For the Component 2 (Isocyanate) Hexcel uses MDI and HDI and variations rather than TDI or IPDI Isocyanates.
Why use Modipur Polyurethanes?
PUR systems offer cost saving advantages for high performance components production. In the recreation industry the properties of the material enable complex shapes to be achieved at low curing temperatures in short cycles.
What types of polyurethanes does Hexcel manufacture?
Hexcel offers mainly 2 component PUR systems as rigid or integral foams for the ski-and snowboard industry; a PUR system for Wet Lay Up Process and rigid and semiflexible systems for industrial applications.
How do I select the best product for my application?
Product selection depends on the density requirement and the properties required from the foam (e.g. insulation, ski cores,..). See Selector Guide.
What is the minimum order quantity?
Minimum package size is 210kg for the Polyole (Component 1) and 250 kg for the Isocyanate (Component 2). For sample purposes smaller quantities may be arranged.
What do Polyurethanes cost?
The cost is dependent on the specific requirements for the formulation and the required additives as well as the overall quantity considered. Please Contact Customer Service for information.
What information should I provide when requesting a quotation for Hexcel Polyurethanes?
When requesting a quotation please provide a contact name, telephone number and e-mail address in case additional information is required. If appropriate, please state the full material control specification, otherwise our offer will be based on releasing to our In-House standard.
Also advise:
- Invoice and delivery addresses
- Required delivery date and quantity for the order, or first drop.
- Total annual quantity and duration.
- Quantity per order with, if applicable, scheduled drops.
Polyspeed Laminates
What are Polyspeed laminates?
Hexcel's Polyspeed laminates are epoxy or phenolic impregnated reinforced materials, in which the matrix is already cured.
What types of laminates does Hexcel manufacture?
Unpressed laminates - woven reinforcements only
Pressed laminates - woven and UD material for high performance.
See product selector for Polyspeed laminates
What are it's applications?
Skis, snowboards, X-country skis, ice hockey shafts, industrial applications (e.g. skins for sandwich panels), automotive.
Where does Hexcel manufacture laminates?
Skis, snowboards, X-country skis, ice hockey shafts, industrial applications (e.g. skins for sandwich panels), automotive.
In what form are laminates supplied?
Laminates can be supplied in rolls, cut rolls and sheets.
How do I obtain a Quote?
Contact your local Customer Service center.
How do I order laminates?
Contact your local Customer Service center.
What information should I provide when requesting a quotation for Polyspeed Laminates?
When requesting a quotation please provide a contact name, telephone number and e-mail address in case additional information is required. If appropriate, please state the full material control specification, otherwise our offer will be based on releasing to our In-House standard.
Also advise:
- Invoice and delivery addresses
- Required delivery date and quantity for the order, or first drop.
- Total annual quantity and duration.
- Quantity per order with, if applicable, scheduled drops.
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