High-performance sound-absorbing sandwich panel
Compocel® SA is a sound-absorbing sandwich panel developed for reverberation control and the improvement of indoor acoustic quality. It consists of an aluminium honeycomb core and aluminium skins, one of which is available in either microperforated or expanded metal configuration, depending on the desired acoustic performance and architectural effect.
The panel is engineered according to the Helmholtz resonator principle and the study of standing wave behaviour, with the aim of optimizing sound absorption at targeted frequencies. Its honeycomb structure dissipates acoustic energy within the internal cavities, enhancing sound absorption and contributing to effective control of the reverberant sound field.
Unlike traditional fibrous acoustic panels, Compocel® SA is fibre-free, does not release particles, and is suitable for environments requiring high hygiene standards and ease of cleaning, such as healthcare and food-processing facilities.
The outer metal sheet can be microperforated for calibrated acoustic performance or expanded metal for a stronger architectural impact, combining technical function with contemporary design expression.
The panel can achieve sound absorption values up to αw 0,98. Its mass and sandwich configuration also contribute to improved sound insulation performance, integrating sound absorption and sound attenuation within a single construction element.
The panel can be manufactured in a non-combustible version and is certifiable for reaction to fire, allowing its use in regulated and high-occupancy environments.
A.1 – MICROPERFORATED ALUMINIUM SKIN
Thickness: 1mm
A.2 – STRETCHED ALUMINIUM SKIN
Thickness: 1mm
B - STRUCTURAL ADHESIVE
C - ALUMINIUM HONEYCOMB CORE
Alloy series 3000*) with hexagonal cells
Diameter: Ø3/8”, Ø1/2”, Ø3/4”
Foil thickness: da 50 a 70 microns
D – ALUMINIUM SKIN
Thickness: 1mm
*Alloy series 5000 on request
Customisation
Compocel® SA is manufactured to measure, with dimensions tailored to project requirements.
Standard finishes include:
- Raw aluminium
- Black anodized aluminium
Additional colours and surface treatments are available upon request.
- Sandwich panel with aluminium honeycomb core
- Microperforated or expanded metal surface
- Sound absorption up to αw 0,98
- Contribution to sound insulation through multilayer configuration
- Fibre-free construction
- Available in non-combustible version
- Certifiable for reaction to fire
Installation system
Panels can be installed directly against the ceiling or suspended using adjustable cables. A suspended installation, creating an air cavity behind the panel, enhances sound absorption efficiency and improves reverberation control.
Non-combustible version
A non-combustible configuration is available, developed to further enhance reaction-to-fire performance and to provide a fully metallic solution.
Applications
Technical datasheet
Technical data sheet for standard panels (dimensions, materials and special finishes on request) |
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| TECHNICAL CHARACTERISTICS OF PANEL | |||
panel size mm |
Standard 1000 x 2000 / 1250 x 2500 On request different sizes |
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thickness’ tolerance mm |
± 0,3 |
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dimension’s tolerance mm |
± 5 |
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planarity *** mm/m |
+/-1 |
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skins’ thickness mm |
Standard 1,0 – On request 0,8 / 0,5 back side |
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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 9 to 19 |
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honeycomb density Kg/m³ |
from 20 to 163 |
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adhesive |
Hotmelt reactive polyurethane adhesive |
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skin characteristics |
Perforated / Stretched - Raw/polyester/PVDF/anodized |
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| PANEL PHISIC AND MECHANIC PERFORMANCES | |||
type panel (some examples) - Panel Thickness mmtype panel (some examples) - Skin Thickness mm |
13 |
20 | 40 |
1,0 + 1,0 |
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panel weight ‡ Kg/m2 |
5,1 |
5,6 |
6,8 |
compressive stabilised strength MPa ** ‡
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0,7 |
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maximum load ** ‡ ASTM C 393 † N |
700 |
1.200 |
1.700 |
deflection at maximum load ‡
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6 |
4 | 1,5 |
skins E Elastic Modulus Mpa |
68.000 - 70.000 |
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moment of inertia I ** mm4/m |
72.000 |
181.000 |
760.000 |
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 + 80 |
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thermal expansion coefficient ** °C-1 |
2,3 x 10-5 |
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** Theoretical values
*** 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 Ø12 29kg/m3 (Ø 1/2”)
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 |
9 |
12 |
19 |
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Ø honeycomb in inches |
3/8" |
1/2" |
3/4" |
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Density Kg/m3 |
39 - 40 |
29 - 30 |
20 - 21 |
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Compressive stabilised strength MPa |
1,4 - 1,95 |
0,85 - 0,9 |
0,4 - 0,6 |
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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 |
9 |
12 |
19 |
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Ø honeycomb in inches |
3/8" |
1/2" |
3/4" |
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Density Kg/m3 |
54 |
40 - 42 |
27 - 29 |
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Compressive stabilised strength MPa |
2,5 - 2,6 |
1,41 - 1,5 |
0,85 - 0,9 |
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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.
IMPORTANT
To allow us to offer you a panel with particular finishes or colors without minimal pigment variations, it is recommended to place an overall order , so that we can plan the production with the rolling mills that will carry out the painting of the sheets in a batch.