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Sandwich Panels, Aluminum and Thermoplastics honeycombs and Foams
COMPOCEL® AL is a sandwich panel with a core in aluminium honeycomb bonded to two skins of aluminium. A panel entirely in aluminum. It offers high mechanical properties, perfect when high rigidity and a low weight are required. Being a panel made of 95% aluminum, the fire reaction properties meet the reference standards for numerous applications.
COMPOCEL AL panel is used in countless sectors: building to shipbuilding, from railways to interiors, from cabins to lifts etc .... Customers can customize the panel according to their needs as it is a 100% customizable product.
These mechanical processes are performed by a programmed CNC. CEL is able to produce customized shapes, holes and processing, according to costumer's specifications.
Some projects require an anchoring system to fasten panels to other surfaces.
Cel offers different options:
panels attached to each other by visible or blind rivets and screws;
fixing with self-tapping screws (sealing washers) in aluminium or stainless steel
COMPOCEL AL finishes are selected carefully for indoor and outdoor applications; high quality polymeric paint such as PVDF and FEVE are available on request. CEL offers various surface treatments, in order to resist to heat peaks and temperatures.Overall orders are necessary in case customer needs specific finishes or colours; in this way all aluminium sheets are produced in a batch without any minimal pigment variation.
Aluminium sheets can be covered with an anodic oxidation coating. This process increases corrosion and wear resistance, improving adhesion for paint, primers and glues.
Paintings
Aluminium panels can be finished with powder or liquid paints, combining aesthetics with environmental needs; Antibacterial and dissipating paints for indoor and outdoor are available on request.
High resolution and durable printing are possible thanks to the use of UV resistant inks.
Compocel AL panels can be finished with various types of edging, depending on the aesthetic and mechanical requirements:
For this type of edging, extrusions made of different materials can be used: aluminum, laminate, PVC, ABS, of different colours.
After milling the panel core, a T extrusion is applied to the edge with suitable glues. The combination of profile and glue gives strength and rigidity.
Extrusions are glued after milling part of the honeycomb or foam. The result is excellent aesthetic quality and durability in the outer edge.
The core is partially removed by milling along the edge to be folded. The skin is then folded and glued upon the edge. The result is an aesthetically homogeneous and perfectly processed panel.
One skin and the core are cut to get V-shaped or rectangular grooves along the folding line, without cutting the upper skin, adhesive is applied and the panel is bent in order to get the final shape.
COMPOCEL AL can be processed with various types of machinery: from carpentry saws to the most advanced CNCs. CEL offers perforation, edging and riveting operations. The User Manual indicates the conditions in which the material must be stored and preserved. Storage temperature, handling, exposure to light and atmospheric agents are just some of the factors that affect the panel conservation and its qualities.
Particular attention must be paid to protective films that could be of difficult removal when the panel has been subjected to atmospheric agents or a prolonged storage period of time.
The panel can be easily cleaned and degreased, however the use of acidic substances or abrasive components is not recommended as they could compromise its aesthetic qualities.
COMPOCEL AL panel is recyclable as it is composed of 95% aluminium, which can be melted and reused multiple times. If the panel is covered with other materials, it is necessary to verify with the competent supply chains about the disposal and recycling options
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A - ALUMINIUM SKINS
B - STRUCTURAL ADHESIVE
C - CORE IN ALUMINIUM HONEYCOMB
PDF- COMPOCEL AL TDS TO DOWNLOAD
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* To Aluminium alloy series 3000 belong: Aluminium alloy 3003, Aluminium alloy 3005, Aluminium alloy 3103, Aluminium alloy 3104.
TECHNICAL FEATURES
Technical data sheet for standard panels (dimensions, materials and special finishes on request) |
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panel size mm |
standard 1250 x 2500 / 1250 x 3000 / 1500 x 3000; On request up to 2000 x 7000 |
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thickness’ tolerance mm |
± 0,3 |
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dimension’s tolerance mm |
± 30 |
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planarity *** mm/m |
+/-1 |
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skins’ thickness mm |
from 0,5 to 5,0 |
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skin alluminium alloy |
1000 series, 3000 series, 5000 series |
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honeycomb alluminium alloy |
3000 series, 5000 series |
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thickness of honeycomb foil μm |
50 and 70 |
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diameter of honeycomb Ø = mm |
from 3 to 19 |
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honeycomb density Kg/m³ |
from 20 to 163 |
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adhesive |
two-components polyurethane adhesive/thermoplastic film/ epoxy film/ |
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skin characteristics |
rough/primer/polyester/PVDF/ anodised |
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type panel (some examples) - Panel Thickness mmtype panel (some examples) - Skin Thickness mm |
6 |
10 |
15 |
10 |
15 |
20 |
25 |
0,5 + 0,5 |
1,0 + 1,0 |
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panel weight ‡ Kg/m2 |
3,8 |
4,0 |
4,3 |
6,7 |
7,0 |
7,3 |
7,6 |
compressive stabilised strength MPa ** ‡
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2,9 |
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maximum load ** ‡ ASTM C 393 † N |
190 |
340 |
520 |
600 |
1.000 |
1.350 |
1.700 |
deflection at maximum load ‡
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14 |
8 |
6 |
8 |
6 |
4 |
3 |
skins E Elastic Modulus Mpa |
68.000 - 70.000 |
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moment of inertia I ** mm4/m |
7.600 |
22.000 |
52.000 |
40.000 |
98.000 |
181.000 |
288.000 |
average resistance to peeling ** ‡
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> 280 N/76 mm or 40 Nmm/mm |
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maximum service temperature ** °C |
- 40 / + 60; on request + 80 / + 100 / + 150 |
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thermal expansion coefficient ** °C-1 |
2,3 x 10-5 |
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** Tested by Internal Laboratory
*** Approximate value
† Sample dimension with 4 support points (L, W) 540x50mm;
distance among the lower points 500mm, distance among the upper points 250mm
‡ Values for a panel with a honeycomb core of Ø6 56kg/m3 (Ø 1/4”)
PROCESSING METHODS
COMPOCEL AL FR- FIRE REACTION - CLASSES AND CERTIFICATIONS
Certified version COMPOCEL AL FR must be required while asking for a quotation might have a price surcharge due to certified materials.
Honeycomb core’s properties |
50 Microns |
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Type |
ALUMINIUM ALLOY 3003/3005/3103/3104 |
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Ø honeycomb in mm |
6 |
9 |
12 |
19 |
Ø honeycomb in inches |
1/4" |
3/8" |
1/2" |
3/4" |
Density Kg/m3 |
56 - 59 |
39 - 40 |
29 - 30 |
20 - 21 |
Compressive stabilised strength MPa |
3,0 - 3,5 |
1,4 - 1,95 |
0,8 - 0,95 |
0,4 - 0,6 |
Honeycomb core’s properties |
70 Microns |
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TipoType |
ALUMINIUM ALLOY 3003/3005/3103/3104 |
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Ø honeycomb in mm |
6 |
9 |
12 |
19 |
Ø honeycomb in inches |
1/4" |
3/8" |
1/2" |
3/4" |
Density Kg/m3 |
80 - 83 |
54 |
40 - 42 |
27 - 29 |
Compressive stabilised strength MPa |
4,3 - 4,6 |
2,5 - 2,6 |
1,41 - 1,5 |
0,85 - 0,9 |
STANDARD DIMENSIONS (other dimensions available on request)
LIABILITY DISCLAIMER: The above data are to the best of our knowledge correct and are intended to give information about our products and their potential applications. No warranty is given or implied in respect of certain properties of the products or their suitability for a particular application. We reserve the right for technical changes without further notice. We guarantee impeccable product quality under our terms of sale.
